page fault in compat_ifconf

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syzbot

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Jul 7, 2022, 5:49:21 AM7/7/22
to syzkaller-...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: 00db161ce6c4 lint: do not warn about 'may lose accuracy' i..
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=1594d5ec080000
kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=442c033feb784d055185
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13a0baa2080000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11aae40c080000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+442c03...@syzkaller.appspotmail.com

[ 50.4879536] fatal page fault in supervisor mode
[ 50.4879536] trap type 6 code 0 rip 0xffffffff83aceaa0 cs 0x8 rflags 0x10246 cr2 0x8 ilevel 0 rsp 0xffff838087924670
[ 50.4879536] curlwp 0xffff838012bb4080 pid 1220.1220 lowest kstack 0xffff83808791d2c0
kernel: page fault trap, code=0
Stopped in pid 1220.1220 (syz-executor2264) at netbsd:compat_ifconf+0x80: movq 0(%rbx),%r12
?
compat_ifconf() at netbsd:compat_ifconf+0x80 sys/compat/common/uipc_syscalls_40.c:44
doifioctl() at netbsd:doifioctl+0x354 sys/net/if.c:3394
soo_ioctl() at netbsd:soo_ioctl+0xd7f
sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:673
sys_syscall() at netbsd:sys_syscall+0x2c5 sys/kern/sys_syscall.c:90
syscall() at netbsd:syscall+0x60c sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x60c sys/arch/x86/x86/syscall.c:138
--- syscall (number 54 via SYS_syscall) ---
netbsd:syscall+0x60c:
Panic string: (null)
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
989 989 2 0 0 ffff838013363940 syz-executor2264
1224 1224 2 0 0 ffff838013363500 syz-executor2264
422 422 2 0 0 ffff8380133630c0 syz-executor2264
1130 1130 2 0 0 ffff838012bb4900 syz-executor2264
1195 >1195 7 0 0 ffff838012bb44c0 syz-executor2264
1220 >1220 7 1 0 ffff838012bb4080 syz-executor2264
1192 1192 3 1 180 ffff83801242d700 syz-executor2264 nanoslp
1223 1223 2 0 0 ffff8380122c86c0 syz-executor2264
1222 1222 3 1 180 ffff8380122c8280 syz-executor2264 nanoslp
1107 1107 3 0 180 ffff83801229aac0 syz-executor2264 nanoslp
1086 1086 3 1 40180 ffff838012b988c0 sshd select
1070 1070 3 1 180 ffff838012b98480 getty nanoslp
1125 1125 3 1 180 ffff83801229a680 getty nanoslp
1073 1073 3 1 180 ffff83801229a240 getty nanoslp
1252 1252 3 0 1c0 ffff8380121a9600 getty ttyraw
1093 1093 3 1 180 ffff838012b98040 sshd select
941 941 3 0 180 ffff83801242db40 powerd kqueue
687 687 3 1 180 ffff83801250bb80 syslogd kqueue
547 547 3 1 180 ffff838012ae5bc0 dhcpcd poll
546 546 3 1 180 ffff838012ae5780 dhcpcd poll
600 600 3 1 180 ffff838012ae5340 dhcpcd poll
587 587 3 1 180 ffff83801242d2c0 dhcpcd poll
289 289 3 1 180 ffff83801250b740 dhcpcd poll
288 288 3 1 180 ffff8380122c8b00 dhcpcd poll
351 351 3 1 180 ffff83801250b300 dhcpcd poll
1 1 3 0 180 ffff838011e39940 init wait
0 819 3 0 200 ffff8380121a9a40 physiod physiod
0 194 3 0 200 ffff8380121b5a80 pooldrain pooldrain
0 193 3 0 200 ffff8380121b5640 ioflush syncer
0 192 3 1 200 ffff8380121b5200 pgdaemon pgdaemon
0 169 3 1 200 ffff8380121a91c0 usb7 usbevt
0 167 3 1 200 ffff8380120f6a00 usb6 usbevt
0 165 3 1 200 ffff8380120f65c0 usb5 usbevt
0 164 3 1 200 ffff8380120f6180 usb4 usbevt
0 31 3 1 200 ffff83801205d9c0 usb3 usbevt
0 63 3 1 200 ffff83801205d580 usb2 usbevt
0 126 3 1 200 ffff83801205d140 usb1 usbevt
0 125 3 0 200 ffff838011e4d980 usb0 usbevt
0 124 3 1 200 ffff838011e4d540 usbtask-dr usbtsk
0 123 3 1 200 ffff8380118016c0 usbtask-hc usbtsk
0 122 3 0 200 ffff838011e4d100 npfgc0 npfgcw
0 121 3 1 200 ffff838011e39500 rt_free rt_free
0 120 3 1 200 ffff838011e390c0 unpgc unpgc
0 119 3 0 200 ffff838011e35900 key_timehandler key_timehandler
0 118 3 1 200 ffff838011e354c0 icmp6_wqinput/1 icmp6_wqinput
0 117 3 0 200 ffff838011e35080 icmp6_wqinput/0 icmp6_wqinput
0 116 3 1 200 ffff838011cc48c0 nd6_timer nd6_timer
0 115 3 1 200 ffff838011cc4480 carp6_wqinput/1 carp6_wqinput
0 114 3 0 200 ffff838011cc4040 carp6_wqinput/0 carp6_wqinput
0 113 3 1 200 ffff838011cc2b80 carp_wqinput/1 carp_wqinput
0 112 3 0 200 ffff838011cc2740 carp_wqinput/0 carp_wqinput
0 111 3 1 200 ffff838011cc2300 icmp_wqinput/1 icmp_wqinput
0 110 3 0 200 ffff838011cc3780 icmp_wqinput/0 icmp_wqinput
0 109 3 0 200 ffff838011cc3340 rt_timer rt_timer
0 108 3 0 200 ffff838011cc3bc0 vmem_rehash vmem_rehash
0 99 3 0 200 ffff838011804b40 entbutler entropy
0 98 3 0 200 ffff838011804700 viomb balloon
0 97 3 1 200 ffff8380118042c0 vioif0_txrx/1 vioif0_txrx
0 96 3 0 200 ffff838011801b00 vioif0_txrx/0 vioif0_txrx
0 29 3 0 200 ffff838011801280 scsibus0 sccomp
0 28 3 0 200 ffff8380103afac0 pms0 pmsreset
0 27 3 1 200 ffff8380103af680 xcall/1 xcall
0 26 1 1 200 ffff8380103af240 softser/1
0 25 1 1 200 ffff8380103ada80 softclk/1
0 24 1 1 200 ffff8380103ad640 softbio/1
0 23 1 1 200 ffff8380103ad200 softnet/1
0 22 1 1 201 ffff83800f1f1a40 idle/1
0 21 3 0 200 ffff83800f1f1600 lnxsyswq lnxsyswq
0 20 3 0 200 ffff83800f1f11c0 lnxubdwq lnxubdwq
0 19 3 0 200 ffff83800f1f0a00 lnxpwrwq lnxpwrwq
0 18 3 0 200 ffff83800f1f05c0 lnxlngwq lnxlngwq
0 17 3 0 200 ffff83800f1f0180 lnxhipwq lnxhipwq
0 16 3 0 200 ffff83800f1eb9c0 lnxrcugc lnxrcugc
0 15 3 0 200 ffff83800f1eb580 sysmon smtaskq
0 14 3 1 200 ffff83800f1eb140 pmfsuspend pmfsuspend
0 13 3 0 200 ffff83800f1e7980 pmfevent pmfevent
0 12 3 0 200 ffff83800f1e7540 sopendfree sopendfr
0 11 3 0 200 ffff83800f1e7100 iflnkst iflnkst
0 10 3 1 200 ffff83800f1dd940 nfssilly nfssilly
0 9 3 0 200 ffff83800f1dd500 vdrain vdrain
0 8 3 0 200 ffff83800f1dd0c0 modunload mod_unld
0 7 3 0 200 ffff83800ebda900 xcall/0 xcall
0 6 1 0 200 ffff83800ebda4c0 softser/0
0 5 1 0 200 ffff83800ebda080 softclk/0
0 4 1 0 200 ffff83800ebd88c0 softbio/0
0 3 1 0 200 ffff83800ebd8480 softnet/0
0 2 1 0 201 ffff83800ebd8040 idle/0
0 0 3 1 200 ffffffff868689c0 swapper uvm
[Locks tracked through LWPs]

****** LWP 546.546 (dhcpcd) @ 0xffff838012ae5780, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff838012ae5780 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 600.600 (dhcpcd) @ 0xffff838012ae5340, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff838012ae5340 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 288.288 (dhcpcd) @ 0xffff8380122c8b00, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff8380122c8b00 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 351.351 (dhcpcd) @ 0xffff83801250b300, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffff83801250b300 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.11 (iflnkst) @ 0xffff83800f1e7100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff83800f1e7100 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.5 (softclk/0) @ 0xffff83800ebda080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffff83800ebda080 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.0 (swapper) @ 0xffffffff868689c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff851820f3
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffffff868689c0 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

[Locks tracked through CPUs]

PAGE FLAG PQ UOBJECT UANON
0xffff838000017180 0041 00000000 0x0 0x0
0xffff838000017200 0041 00000000 0x0 0x0
0xffff838000017280 0041 00000000 0x0 0x0
0xffff838000017300 0041 00000000 0x0 0x0
0xffff838000017380 0041 00000000 0x0 0x0
0xffff838000017400 0041 00000000 0x0 0x0
0xffff838000017480 0041 00000000 0x0 0x0
0xffff838000017500 0041 00000000 0x0 0x0
0xffff838000017580 0041 00000000 0x0 0x0
0xffff838000017600 0041 00000000 0x0 0x0
0xffff838000017680 0041 00000000 0x0 0x0
0xffff838000017700 0041 00000000 0x0 0x0
0xffff838000017780 0041 00000000 0x0 0x0
0xffff838000017800 0041 00000000 0x0 0x0
0xffff838000017880 0041 00000000 0x0 0x0
0xffff838000017900 0041 00000000 0x0 0x0
0xffff838000017980 0041 00000000 0x0 0x0
0xffff838000017a00 0041 00000000 0x0 0x0
0xffff838000017a80 0041 00000000 0x0 0x0
0xffff838000017b00 0041 00000000 0x0 0x0
0xffff838000017b80 0041 00000000 0x0 0x0
0xffff838000017c00 0041 00000000 0x0 0x0
0xffff838000017c80 0041 00000000 0x0 0x0
0xffff838000017d00 0041 00000000 0x0 0x0
0xffff838000017d80 0041 00000000 0x0 0x0
0xffff838000017e00 0041 00000000 0x0 0x0
0xffff838000017e80 0041 00000000 0x0 0x0
0xffff838000017f00 0041 00000000 0x0 0x0
0xffff838000017f80 0041 00000000 0x0 0x0
0xffff838000018000 0041 00000000 0x0 0x0
0xffff838000018080 0041 00000000 0x0 0x0
0xffff838000018100 0041 00000000 0x0 0x0
0xffff838000018180 0041 00000000 0x0 0x0
0xffff838000018200 0041 00000000 0x0 0x0
0xffff838000018280 0041 00000000 0x0 0x0
0xffff838000018300 0041 00000000 0x0 0x0
0xffff838000018380 0041 00000000 0x0 0x0
0xffff838000018400 0041 00000000 0x0 0x0
0xffff838000018480 0041 00000000 0x0 0x0
0xffff838000018500 0041 00000000 0x0 0x0
0xffff838000018580 0041 00000000 0x0 0x0
0xffff838000018600 0041 00000000 0x0 0x0
0xffff838000018680 0041 00000000 0x0 0x0
0xffff838000018700 0041 00000000 0x0 0x0
0xffff838000018780 0041 00000000 0x0 0x0
0xffff838000018800 0041 00000000 0x0 0x0
0xffff838000018880 0041 00000000 0x0 0x0
0xffff838000018900 0041 00000000 0x0 0x0
0xffff838000018980 0041 00000000 0x0 0x0
0xffff838000018a00 0041 00000000 0x0 0x0
0xffff838000018a80 0041 00000000 0x0 0x0
0xffff838000018b00 0041 00000000 0x0 0x0
0xffff838000018b80 0041 00000000 0x0 0x0
0xffff838000018c00 0041 00000000 0x0 0x0
0xffff838000018c80 0041 00000000 0x0 0x0
0xffff838000018d00 0041 00000000 0x0 0x0
0xffff838000018d80 0041 00000000 0x0 0x0
0xffff838000018e00 0041 00000000 0x0 0x0
0xffff838000018e80 0041 00000000 0x0 0x0
0xffff838000018f00 0041 00000000 0x0 0x0
0xffff838000018f80 0041 00000000 0x0 0x0
0xffff838000019000 0041 00000000 0x0 0x0
0xffff838000019080 0041 00000000 0x0 0x0
0xffff838000019100 0041 00000000 0x0 0x0
0xffff838000019180 0041 00000000 0x0 0x0
0xffff838000019200 0041 00000000 0x0 0x0
0xffff838000019280 0041 00000000 0x0 0x0
0xffff838000019300 0041 00000000 0x0 0x0
0xffff838000019380 0041 00000000 0x0 0x0
0xffff838000019400 0041 00000000 0x0 0x0
0xffff838000019480 0041 00000000 0x0 0x0
0xffff838000019500 0041 00000000 0x0 0x0
0xffff838000019580 0041 00000000 0x0 0x0
0xffff838000019600 0041 00000000 0x0 0x0
0xffff838000019680 0041 00000000 0x0 0x0
0xffff838000019700 0041 00000000 0x0 0x0
0xffff838000019780 0041 00000000 0x0 0x0
0xffff838000019800 0041 00000000 0x0 0x0
0xffff838000019880 0041 00000000 0x0 0x0
0xffff838000019900 0041 00000000 0x0 0x0
0xffff838000019980 0041 00000000 0x0 0x0
0xffff838000019a00 0041 00000000 0x0 0x0
0xffff838000019a80 0041 00000000 0x0 0x0
0xffff838000019b00 0041 00000000 0x0 0x0
0xffff838000019b80 0041 00000000 0x0 0x0
0xffff838000019c00 0041 00000000 0x0 0x0
0xffff838000019c80 0041 00000000 0x0 0x0
0xffff838000019d00 0041 00000000 0x0 0x0
0xffff838000019d80 0041 00000000 0x0 0x0
0xffff838000019e00 0041 00000000 0x0 0x0
0xffff838000019e80 0041 00000000 0x0 0x0
0xffff838000019f00 0041 00000000 0x0 0x0
0xffff838000019f80 0041 00000000 0x0 0x0
0xffff83800001a000 0041 00000000 0x0 0x0
0xffff83800001a080 0041 00000000 0x0 0x0
0xffff83800001a100 0041 00000000 0x0 0x0
0xffff83800001a180 0041 00000000 0x0 0x0
0xffff83800001a200 0041 00000000 0x0 0x0
0xffff83800001a280 0041 00000000 0x0 0x0
0xffff83800001a300 0041 00000000 0x0 0x0
0xffff83800001a380 0041 00000000 0x0 0x0
0xffff83800001a400 0041 00000000 0x0 0x0
0xffff83800001a480 0041 00000000 0x0 0x0
0xffff83800001a500 0041 00000000 0x0 0x0
0xffff83800001a580 0041 00000000 0x0 0x0
0xffff83800001a600 0041 00000000 0x0 0x0
0xffff83800001a680 0041 00000000 0x0 0x0
0xffff83800001a700 0041 00000000 0x0 0x0
0xffff83800001a780 0041 00000000 0x0 0x0
0xffff83800001a800 0041 00000000 0x0 0x0
0xffff83800001a880 0041 00000000 0x0 0x0
0xffff83800001a900 0041 00000000 0x0 0x0
0xffff83800001a980 0041 00000000 0x0 0x0
0xffff83800001aa00 0041 00000000 0x0 0x0
0xffff83800001aa80 0041 00000000 0x0 0x0
0xffff83800001ab00 0041 00000000 0x0 0x0
0xffff83800001ab80 0041 00000000 0x0 0x0
0xffff83800001ac00 0041 00000000 0x0 0x0
0xffff83800001ac80 0041 00000000 0x0 0x0
0xffff83800001ad00 0041 00000000 0x0 0x0
0xffff83800001ad80 0041 00000000 0x0 0x0
0xffff83800001ae00 0041 00000000 0x0 0x0
0xffff83800001ae80 0041 00000000 0x0 0x0
0xffff83800001af00 0041 00000000 0x0 0x0
0xffff83800001af80 0041 00000000 0x0 0x0
0xffff83800001b000 0041 00000000 0x0 0x0
0xffff83800001b080 0041 00000000 0x0 0x0
0xffff83800001b100 0041 00000000 0x0 0x0
0xffff83800001b180 0041 00000000 0x0 0x0
0xffff83800001b200 0041 00000000 0x0 0x0
0xffff83800001b280 0041 00000000 0x0 0x0
0xffff83800001b300 0041 00000000 0x0 0x0
0xffff83800001b380 0041 00000000 0x0 0x0
0xffff83800001b400 0041 00000000 0x0 0x0
0xffff83800001b480 0041 00000000 0x0 0x0
0xffff83800001b500 0041 00000000 0x0 0x0
0xffff83800001b580 0041 00000000 0x0 0x0
0xffff83800001b600 0041 00000000 0x0 0x0
0xffff83800001b680 0041 00000000 0x0 0x0
0xffff83800001b700 0041 00000000 0x0 0x0
0xffff83800001b780 0041 00000000 0x0 0x0
0xffff83800001b800 0041 00000000 0x0 0x0
0xffff83800001b880 0041 00000000 0x0 0x0
0xffff83800001b900 0041 00000000 0x0 0x0
0xffff83800001b980 0041 00000000 0x0 0x0
0xffff83800001ba00 0041 00000000 0x0 0x0
0xffff83800001ba80 0041 00000000 0x0 0x0
0xffff83800001bb00 0041 00000000 0x0 0x0
0xffff83800001bb80 0041 00000000 0x0 0x0
0xffff83800001bc00 0041 00000000 0x0 0x0
0xffff83800001bc80 0041 00000000 0x0 0x0
0xffff83800001bd00 0041 00000000 0x0 0x0
0xffff83800001bd80 0041 00000000 0x0 0x0
0xffff83800001be00 0041 00000000 0x0 0x0
0xffff83800001be80 0041 00000000 0x0 0x0
0xffff83800001bf00 0041 00000000 0x0 0x0
0xffff83800001bf80 0041 00000000 0x0 0x0
0xffff83800001c000 0041 00000000 0x0 0x0
0xffff83800001c080 0041 00000000 0x0 0x0
0xffff83800001c100 0041 00000000 0x0 0x0
0xffff83800001c180 0041 00000000 0x0 0x0
0xffff83800001c200 0041 00000000 0x0 0x0
0xffff83800001c280 0041 00000000 0x0 0x0
0xffff83800001c300 0041 00000000 0x0 0x0
0xffff83800001c380 0041 00000000 0x0 0x0
0xffff83800001c400 0041 00000000 0x0 0x0
0xffff83800001c480 0041 00000000 0x0 0x0
0xffff83800001c500 0041 00000000 0x0 0x0
0xffff83800001c580 0041 00000000 0x0 0x0
0xffff83800001c600 0041 00000000 0x0 0x0
0xffff83800001c680 0041 00000000 0x0 0x0
0xffff83800001c700 0041 00000000 0x0 0x0
0xffff83800001c780 0001 00000000 0x0 0x0
0xffff83800001c800 0001 00000000 0x0 0x0
0xffff83800001c880 0001 00000000 0x0 0x0
0xffff83800001c900 0001 00000000 0x0 0x0
0xffff83800001c980 0001 00000000 0x0 0x0
0xffff83800001ca00 0001 00000000 0x0 0x0
0xffff83800001ca80 0001 00000000 0x0 0x0
0xffff83800001cb00 0001 00000000 0x0 0x0
0xffff83800001cb80 0001 00000000 0x0 0x0
0xffff83800001cc00 0001 00000000 0x0 0x0
0xffff83800001cc80 0001 00000000 0x0 0x0
0xffff83800001cd00 0001 00000000 0x0 0x0
0xffff83800001cd80 0001 00000000 0x0 0x0
0xffff83800001ce00 0001 00000000 0x0 0x0
0xffff83800001ce80 0001 00000000 0x0 0x0
0xffff83800001cf00 0001 00000000 0x0 0x0
0xffff83800001cf80 0001 00000000 0x0 0x0
0xffff83800001d000 0001 00000000 0x0 0x0
0xffff83800001d080 0001 00000000 0x0 0x0
0xffff83800001d100 0001 00000000 0x0 0x0
0xffff83800001d180 0001 00000000 0x0 0x0
0xffff83800001d200 0001 00000000 0x0 0x0
0xffff83800001d280 0001 00000000 0x0 0x0
0xffff83800001d300 0001 00000000 0x0 0x0
0xffff83800001d380 0001 00000000 0x0 0x0
0xffff83800001d400 0001 00000000 0x0 0x0
0xffff83800001d480 0001 00000000 0x0 0x0
0xffff83800001d500 0001 00000000 0x0 0x0
0xffff83800001d580 0001 00000000 0x0 0x0
0xffff83800001d600 0001 00000000 0x0 0x0
0xffff83800001d680 0001 00000000 0x0 0x0
0xffff83800001d700 0001 00000000 0x0 0x0
0xffff83800001d780 0001 00000000 0x0 0x0
0xffff83800001d800 0001 00000000 0x0 0x0
0xffff83800001d880 0001 00000000 0x0 0x0
0xffff83800001d900 0001 00000000 0x0 0x0
0xffff83800001d980 0001 00000000 0x0 0x0
0xffff83800001da00 0001 00000000 0x0 0x0
0xffff83800001da80 0001 00000000 0x0 0x0
0xffff83800001db00 0001 00000000 0x0 0x0
0xffff83800001db80 0001 00000000 0x0 0x0
0xffff83800001dc00 0001 00000000 0x0 0x0
0xffff83800001dc80 0001 00000000 0x0 0x0
0xffff83800001dd00 0001 00000000 0x0 0x0
0xffff83800001dd80 0001 00000000 0x0 0x0
0xffff83800001de00 0001 00000000 0x0 0x0
0xffff83800001de80 0001 00000000 0x0 0x0
0xffff83800001df00 0001 00000000 0x0 0x0
0xffff83800001df80 0001 00000000 0x0 0x0
0xffff83800001e000 0001 00000000 0x0 0x0
0xffff83800001e080 0001 00000000 0x0 0x0
0xffff83800001e100 0001 00000000 0x0 0x0
0xffff83800001e180 0001 00000000 0x0 0x0
0xffff83800001e200 0001 00000000 0x0 0x0
0xffff83800001e280 0001 00000000 0x0 0x0
0xffff83800001e300 0001 00000000 0x0 0x0
0xffff83800001e380 0001 00000000 0x0 0x0
0xffff83800001e400 0001 00000000 0x0 0x0
0xffff83800001e480 0001 00000000 0x0 0x0
0xffff83800001e500 0001 00000000 0x0 0x0
0xffff83800001e580 0001 00000000 0x0 0x0
0xffff83800001e600 0001 00000000 0x0 0x0
0xffff83800001e680 0001 00000000 0x0 0x0
0xffff83800001e700 0001 00000000 0x0 0x0
0xffff83800001e780 0001 00000000 0x0 0x0
0xffff83800001e800 0001 00000000 0x0 0x0
0xffff83800001e880 0001 00000000 0x0 0x0
0xffff83800001e900 0001 00000000 0x0 0x0
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0xffff83800002d300 0001 00000000 0x0 0x0
0xffff83800002d380 0001 00000000 0x0 0x0
0xffff83800002d400 0001 00000000 0x0 0x0
0xffff83800002d480 0001 00000000 0x0 0x0
0xffff83800002d500 0001 00000000 0x0 0x0
0xffff83800002d580 0001 00000000 0x0 0x0
0xffff83800002d600 0001 00000000 0x0 0x0
0xffff83800002d680 0001 00000000 0x0 0x0
0xffff83800002d700 0001 00000000 0x0 0x0
0xffff83800002d780 0001 00000000 0x0 0x0
0xffff83800002d800 0001 00000000 0x0 0x0
0xffff83800002d880 0001 00000000 0x0 0x0
0xffff83800002d900 0001 00000000 0x0 0x0
0xffff83800002d980 0001 00000000 0x0 0x0
0xffff83800002da00 0001 00000000 0x0 0x0
0xffff83800002da80 0001 00000000 0x0 0x0
0xffff83800002db00 0001 00000000 0x0 0x0
0xffff83800002db80 0001 00000000 0x0 0x0
0xffff83800002dc00 0001 00000000 0x0 0x0
0xffff83800002dc80 0001 00000000 0x0 0x0
0xffff83800002dd00 0001 00000000 0x0 0x0
0xffff83800002dd80 0001 00000000 0x0 0x0
0xffff83800002de00 0001 00000000 0x0 0x0
0xffff83800002de80 0001 00000000 0x0 0x0
0xffff83800002df00 0001 00000000 0x0 0x0
0xffff83800002df80 0001 00000000 0x0 0x0
0xffff83800002e000 0001 00000000 0x0 0x0
0xffff83800002e080 0001 00000000 0x0 0x0
0xffff83800002e100 0001 00000000 0x0 0x0
0xffff83800002e180 0001 00000000 0x0 0x0
0xffff83800002e200 0001 00000000 0x0 0x0
0xffff83800002e280 0001 00000000 0x0 0x0
0xffff83800002e300 0001 00000000 0x0 0x0
0xffff83800002e380 0001 00000000 0x0 0x0
0xffff83800002e400 0001 00000000 0x0 0x0
0xffff83800002e480 0001 00000000 0x0 0x0
0xffff83800002e500 0001 00000000 0x0 0x0
0xffff83800002e580 0001 00000000 0x0 0x0
0xffff83800002e600 0001 00000000 0x0 0x0
0xffff83800002e680 0001 00000000 0x0 0x0
0xffff83800002e700 0001 00000000 0x0 0x0
0xffff83800002e780 0001 00000000 0x0 0x0
0xffff83800002e800 0001 00000000 0x0 0x0
0xffff83800002e880 0001 00000000 0x0 0x0
0xffff83800002e900 0001 00000000 0x0

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

syzbot will keep track of this issue. See:
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syzbot can test patches for this issue, for details see:
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syzbot

unread,
Jul 7, 2022, 11:14:15 AM7/7/22
to rias...@netbsd.org, syzkaller-...@googlegroups.com
Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
page fault in if_get

[ 52.2858731] fatal page fault in supervisor mode
[ 52.2965430] trap type 6 code 0 rip 0xffffffff85828f9f cs 0x8 rflags 0x10246 cr2 0 ilevel 0 rsp 0xffffdc0087b62770
[ 52.3070650] uvm_fault(0xffffdc00133ee048, 0x0, 1) -> e
[ 52.3070650] fatal page fault in supervisor mode
[ 52.3174093] trap type 6 code 0 rip 0xffffffff85828f9f cs 0x8 rflags 0x10246 cr2 0 ilevel 0 rsp 0xffffdc0087b6b770
[ 52.3276218] curlwp 0xffffdc00135315c0 pid 1209.854 lowest kstack 0xffffdc0087b642c0
kernel: page fault trap, code=0
Stopped in pid 1209.854 (syz-executor.4) at netbsd:if_get+0x4f: movzbl 0(%r15),%ebx
?
if_get() at netbsd:if_get+0x4f sys/net/if.c:2859
doifioctl() at netbsd:doifioctl+0x26ba sys/net/if.c:3454
soo_ioctl() at netbsd:soo_ioctl+0xd7f
sys_ioctl() at netbsd:sys_ioctl+0xd84 sys/kern/sys_generic.c:673
sys___syscall() at netbsd:sys___syscall+0x2c6 sys/kern/sys_syscall.c:90
syscall() at netbsd:syscall+0x60c sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x60c sys/arch/x86/x86/syscall.c:138
--- syscall (number 54 via SYS_syscall) ---
netbsd:syscall+0x60c:
Panic string: (null)
PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
1129 1129 2 0 0 ffffdc0013531a00 syz-execprog
1205 >1205 7 1 0 ffffdc00133f39c0 syz-executor.0
1207 1212 2 0 100 ffffdc0013531180 syz-executor.1
1207 1207 3 0 10000180 ffffdc00133f3580 syz-executor.1 nanoslp
1209 > 854 7 0 100 ffffdc00135315c0 syz-executor.4
1209 1209 3 1 10000180 ffffdc00133f3140 syz-executor.4 nanoslp
323 323 3 1 180 ffffdc0013367980 syz-executor.5 pipe_rd
334 334 2 0 0 ffffdc0013367540 syz-executor.3
1202 1202 3 1 180 ffffdc0013367100 syz-executor.1 nanoslp
330 330 2 0 0 ffffdc0013341940 syz-executor.0
329 329 3 0 180 ffffdc0013341500 syz-executor.4 nanoslp
1237 1200 3 1 180 ffffdc00133410c0 syz-execprog parked
1237 1204 3 1 180 ffffdc0012bc9900 syz-execprog pipe_rd
1237 1199 3 0 180 ffffdc0012bc94c0 syz-execprog parked
1237 1023 3 1 180 ffffdc0012bc9080 syz-execprog parked
1237 1197 2 1 140 ffffdc001242d700 syz-execprog
1237 1196 3 0 180 ffffdc00122c86c0 syz-execprog parked
1237 1243 3 0 180 ffffdc00122c8280 syz-execprog nanoslp
1237 1237 3 1 40180 ffffdc001229aac0 syz-execprog parked
1128 1128 3 1 180 ffffdc0012b04480 sshd select
1126 1126 3 0 180 ffffdc0012b048c0 getty nanoslp
1073 1073 3 0 180 ffffdc001229a680 getty nanoslp
1100 1100 3 1 180 ffffdc001229a240 getty nanoslp
1107 1107 3 0 1c0 ffffdc00121a9600 getty ttyraw
1092 1092 3 1 180 ffffdc0012b04040 sshd select
952 952 3 1 180 ffffdc0012ae4bc0 powerd kqueue
686 686 3 0 180 ffffdc0012ae4340 syslogd kqueue
602 602 3 1 180 ffffdc0012ae4780 dhcpcd poll
547 547 3 0 180 ffffdc001242db40 dhcpcd poll
546 546 3 0 180 ffffdc001250ab80 dhcpcd poll
589 589 3 1 180 ffffdc001242d2c0 dhcpcd poll
289 289 3 0 180 ffffdc001250a740 dhcpcd poll
288 288 3 0 180 ffffdc00122c8b00 dhcpcd poll
351 351 3 1 180 ffffdc001250a300 dhcpcd poll
1 1 3 0 180 ffffdc0011e3c940 init wait
0 967 3 0 200 ffffdc00121a9a40 physiod physiod
0 194 3 1 200 ffffdc00121b5a80 pooldrain pooldrain
0 193 3 0 200 ffffdc00121b5640 ioflush syncer
0 192 3 0 200 ffffdc00121b5200 pgdaemon pgdaemon
0 169 3 0 200 ffffdc00121a91c0 usb7 usbevt
0 167 3 0 200 ffffdc00120f6a00 usb6 usbevt
0 165 3 0 200 ffffdc00120f65c0 usb5 usbevt
0 164 3 0 200 ffffdc00120f6180 usb4 usbevt
0 31 3 0 200 ffffdc001205d9c0 usb3 usbevt
0 63 3 0 200 ffffdc001205d580 usb2 usbevt
0 126 3 1 200 ffffdc001205d140 usb1 usbevt
0 125 3 1 200 ffffdc0011e4d980 usb0 usbevt
0 124 3 0 200 ffffdc0011e4d540 usbtask-dr usbtsk
0 123 3 0 200 ffffdc00118016c0 usbtask-hc usbtsk
0 122 3 1 200 ffffdc0011e4d100 npfgc0 npfgcw
0 121 3 0 200 ffffdc0011e3c500 rt_free rt_free
0 120 3 0 200 ffffdc0011e3c0c0 unpgc unpgc
0 119 3 1 200 ffffdc0011e37900 key_timehandler key_timehandler
0 118 3 1 200 ffffdc0011e374c0 icmp6_wqinput/1 icmp6_wqinput
0 117 3 0 200 ffffdc0011e37080 icmp6_wqinput/0 icmp6_wqinput
0 116 3 0 200 ffffdc0011cc48c0 nd6_timer nd6_timer
0 115 3 1 200 ffffdc0011cc4480 carp6_wqinput/1 carp6_wqinput
0 114 3 0 200 ffffdc0011cc4040 carp6_wqinput/0 carp6_wqinput
0 113 3 1 200 ffffdc0011cc2b80 carp_wqinput/1 carp_wqinput
0 112 3 0 200 ffffdc0011cc2740 carp_wqinput/0 carp_wqinput
0 111 3 1 200 ffffdc0011cc2300 icmp_wqinput/1 icmp_wqinput
0 110 3 0 200 ffffdc0011cc3340 icmp_wqinput/0 icmp_wqinput
0 109 3 1 200 ffffdc0011cc3bc0 rt_timer rt_timer
0 108 3 0 200 ffffdc0011cc3780 vmem_rehash vmem_rehash
0 99 3 0 200 ffffdc0011804b40 entbutler entropy
0 98 3 1 200 ffffdc0011804700 viomb balloon
0 97 3 1 200 ffffdc00118042c0 vioif0_txrx/1 vioif0_txrx
0 96 3 0 200 ffffdc0011801b00 vioif0_txrx/0 vioif0_txrx
0 29 3 0 200 ffffdc0011801280 scsibus0 sccomp
0 28 3 0 200 ffffdc00103afac0 pms0 pmsreset
0 27 3 1 200 ffffdc00103af680 xcall/1 xcall
0 26 1 1 200 ffffdc00103af240 softser/1
0 25 1 1 200 ffffdc00103ada80 softclk/1
0 24 1 1 200 ffffdc00103ad640 softbio/1
0 23 1 1 200 ffffdc00103ad200 softnet/1
0 22 1 1 201 ffffdc000f1f1a40 idle/1
0 21 3 0 200 ffffdc000f1f1600 lnxsyswq lnxsyswq
0 20 3 0 200 ffffdc000f1f11c0 lnxubdwq lnxubdwq
0 19 3 0 200 ffffdc000f1f0a00 lnxpwrwq lnxpwrwq
0 18 3 0 200 ffffdc000f1f05c0 lnxlngwq lnxlngwq
0 17 3 0 200 ffffdc000f1f0180 lnxhipwq lnxhipwq
0 16 3 0 200 ffffdc000f1eb9c0 lnxrcugc lnxrcugc
0 15 3 0 200 ffffdc000f1eb580 sysmon smtaskq
0 14 3 0 200 ffffdc000f1eb140 pmfsuspend pmfsuspend
0 13 3 1 200 ffffdc000f1e7980 pmfevent pmfevent
0 12 3 0 200 ffffdc000f1e7540 sopendfree sopendfr
0 11 3 0 200 ffffdc000f1e7100 iflnkst iflnkst
0 10 3 0 200 ffffdc000f1dd940 nfssilly nfssilly
0 9 3 0 200 ffffdc000f1dd500 vdrain vdrain
0 8 3 1 200 ffffdc000f1dd0c0 modunload mod_unld
0 7 3 0 200 ffffdc000ebda900 xcall/0 xcall
0 6 1 0 200 ffffdc000ebda4c0 softser/0
0 5 1 0 200 ffffdc000ebda080 softclk/0
0 4 1 0 200 ffffdc000ebd88c0 softbio/0
0 3 1 0 200 ffffdc000ebd8480 softnet/0
0 2 1 0 201 ffffdc000ebd8040 idle/0
0 0 3 1 200 ffffffff868689c0 swapper uvm
[Locks tracked through LWPs]

****** LWP 1207.1212 (syz-executor.1) @ 0xffffdc0013531180, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc0013531180 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 1209.854 (syz-executor.4) @ 0xffffdc00135315c0, l_stat=7

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc00135315c0 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 334.334 (syz-executor.3) @ 0xffffdc0013367540, l_stat=2

*** Locks held:

* Lock 0 (initialized at pmap_ctor)
lock address : 0xffffdc0012bbe540 type : sleep/adaptive
initialized : 0xffffffff818e23b0
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc0013367540 last held: 0xffffdc0013367540
last locked* : 0xffffffff818fcb7d unlocked : 0xffffffff818ef8fd
owner field : 0xffffdc0013367540 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 330.330 (syz-executor.0) @ 0xffffdc0013341940, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at uvmspace_fork)
lock address : 0xffffdc00125089b0 type : sleep/adaptive
initialized : 0xffffffff84fa9494
shared holds : 0 exclusive: 0
shares wanted: 1 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc0013341940 last held: 000000000000000000
last locked : 0xffffffff84f6bb47 unlocked*: 0xffffffff84f4477d
owner/count : 0x0000000000000020 flags : 000000000000000000
Turnstile: no active turnstile for this lock.

****** LWP 547.547 (dhcpcd) @ 0xffffdc001242db40, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc001242db40 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 546.546 (dhcpcd) @ 0xffffdc001250ab80, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc001250ab80 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 288.288 (dhcpcd) @ 0xffffdc00122c8b00, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc00122c8b00 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 351.351 (dhcpcd) @ 0xffffdc001250a300, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffdc001250a300 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.11 (iflnkst) @ 0xffffdc000f1e7100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc000f1e7100 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.5 (softclk/0) @ 0xffffdc000ebda080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffdc000ebda080 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.0 (swapper) @ 0xffffffff868689c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at module_hook_init)
lock address : 0xffffffff868f6d00 type : sleep/adaptive
initialized : 0xffffffff85182193
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffffff868689c0 last held: 000000000000000000
last locked : 000000000000000000 unlocked*: 000000000000000000
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

[Locks tracked through CPUs]

PAGE FLAG PQ UOBJECT UANON
0xffffdc0000017180 0041 00000000 0x0 0x0
0xffffdc0000017200 0041 00000000 0x0 0x0
0xffffdc0000017280 0041 00000000 0x0 0x0
0xffffdc0000017300 0041 00000000 0x0 0x0
0xffffdc0000017380 0041 00000000 0x0 0x0
0xffffdc0000017400 0041 00000000 0x0 0x0
0xffffdc0000017480 0041 00000000 0x0 0x0
0xffffdc0000017500 0041 00000000 0x0 0x0
0xffffdc0000017580 0041 00000000 0x0 0x0
0xffffdc0000017600 0041 00000000 0x0 0x0
0xffffdc0000017680 0041 00000000 0x0 0x0
0xffffdc0000017700 0041 00000000 0x0 0x0
0xffffdc0000017780 0041 00000000 0x0 0x0
0xffffdc0000017800 0041 00000000 0x0 0x0
0xffffdc0000017880 0041 00000000 0x0 0x0
0xffffdc0000017900 0041 00000000 0x0 0x0
0xffffdc0000017980 0041 00000000 0x0 0x0
0xffffdc0000017a00 0041 00000000 0x0 0x0
0xffffdc0000017a80 0041 00000000 0x0 0x0
0xffffdc0000017b00 0041 00000000 0x0 0x0
0xffffdc0000017b80 0041 00000000 0x0 0x0
0xffffdc0000017c00 0041 00000000 0x0 0x0
0xffffdc0000017c80 0041 00000000 0x0 0x0
0xffffdc0000017d00 0041 00000000 0x0 0x0
0xffffdc0000017d80 0041 00000000 0x0 0x0
0xffffdc0000017e00 0041 00000000 0x0 0x0
0xffffdc0000017e80 0041 00000000 0x0 0x0
0xffffdc0000017f00 0041 00000000 0x0 0x0
0xffffdc0000017f80 0041 00000000 0x0 0x0
0xffffdc0000018000 0041 00000000 0x0 0x0
0xffffdc0000018080 0041 00000000 0x0 0x0
0xffffdc0000018100 0041 00000000 0x0 0x0
0xffffdc0000018180 0041 00000000 0x0 0x0
0xffffdc0000018200 0041 00000000 0x0 0x0
0xffffdc0000018280 0041 00000000 0x0 0x0
0xffffdc0000018300 0041 00000000 0x0 0x0
0xffffdc0000018380 0041 00000000 0x0 0x0
0xffffdc0000018400 0041 00000000 0x0 0x0
0xffffdc0000018480 0041 00000000 0x0 0x0
0xffffdc0000018500 0041 00000000 0x0 0x0
0xffffdc0000018580 0041 00000000 0x0 0x0
0xffffdc0000018600 0041 00000000 0x0 0x0
0xffffdc0000018680 0041 00000000 0x0 0x0
0xffffdc0000018700 0041 00000000 0x0 0x0
0xffffdc0000018780 0041 00000000 0x0 0x0
0xffffdc0000018800 0041 00000000 0x0 0x0
0xffffdc0000018880 0041 00000000 0x0 0x0
0xffffdc0000018900 0041 00000000 0x0 0x0
0xffffdc0000018980 0041 00000000 0x0 0x0
0xffffdc0000018a00 0041 00000000 0x0 0x0
0xffffdc0000018a80 0041 00000000 0x0 0x0
0xffffdc0000018b00 0041 00000000 0x0 0x0
0xffffdc0000018b80 0041 00000000 0x0 0x0
0xffffdc0000018c00 0041 00000000 0x0 0x0
0xffffdc0000018c80 0041 00000000 0x0 0x0
0xffffdc0000018d00 0041 00000000 0x0 0x0
0xffffdc0000018d80 0041 00000000 0x0 0x0
0xffffdc0000018e00 0041 00000000 0x0 0x0
0xffffdc0000018e80 0041 00000000 0x0 0x0
0xffffdc0000018f00 0041 00000000 0x0 0x0
0xffffdc0000018f80 0041 00000000 0x0 0x0
0xffffdc0000019000 0041 00000000 0x0 0x0
0xffffdc0000019080 0041 00000000 0x0 0x0
0xffffdc0000019100 0041 00000000 0x0 0x0
0xffffdc0000019180 0041 00000000 0x0 0x0
0xffffdc0000019200 0041 00000000 0x0 0x0
0xffffdc0000019280 0041 00000000 0x0 0x0
0xffffdc0000019300 0041 00000000 0x0 0x0
0xffffdc0000019380 0041 00000000 0x0 0x0
0xffffdc0000019400 0041 00000000 0x0 0x0
0xffffdc0000019480 0041 00000000 0x0 0x0
0xffffdc0000019500 0041 00000000 0x0 0x0
0xffffdc0000019580 0041 00000000 0x0 0x0
0xffffdc0000019600 0041 00000000 0x0 0x0
0xffffdc0000019680 0041 00000000 0x0 0x0
0xffffdc0000019700 0041 00000000 0x0 0x0
0xffffdc0000019780 0041 00000000 0x0 0x0
0xffffdc0000019800 0041 00000000 0x0 0x0
0xffffdc0000019880 0041 00000000 0x0 0x0
0xffffdc0000019900 0041 00000000 0x0 0x0
0xffffdc0000019980 0041 00000000 0x0 0x0
0xffffdc0000019a00 0041 00000000 0x0 0x0
0xffffdc0000019a80 0041 00000000 0x0 0x0
0xffffdc0000019b00 0041 00000000 0x0 0x0
0xffffdc0000019b80 0041 00000000 0x0 0x0
0xffffdc0000019c00 0041 00000000 0x0 0x0
0xffffdc0000019c80 0041 00000000 0x0 0x0
0xffffdc0000019d00 0041 00000000 0x0 0x0
0xffffdc0000019d80 0041 00000000 0x0 0x0
0xffffdc0000019e00 0041 00000000 0x0 0x0
0xffffdc0000019e80 0041 00000000 0x0 0x0
0xffffdc0000019f00 0041 00000000 0x0 0x0
0xffffdc0000019f80 0041 00000000 0x0 0x0
0xffffdc000001a000 0041 00000000 0x0 0x0
0xffffdc000001a080 0041 00000000 0x0 0x0
0xffffdc000001a100 0041 00000000 0x0 0x0
0xffffdc000001a180 0041 00000000 0x0 0x0
0xffffdc000001a200 0041 00000000 0x0 0x0
0xffffdc000001a280 0041 00000000 0x0 0x0
0xffffdc000001a300 0041 00000000 0x0 0x0
0xffffdc000001a380 0041 00000000 0x0 0x0
0xffffdc000001a400 0041 00000000 0x0 0x0
0xffffdc000001a480 0041 00000000 0x0 0x0
0xffffdc000001a500 0041 00000000 0x0 0x0
0xffffdc000001a580 0041 00000000 0x0 0x0
0xffffdc000001a600 0041 00000000 0x0 0x0
0xffffdc000001a680 0041 00000000 0x0 0x0
0xffffdc000001a700 0041 00000000 0x0 0x0
0xffffdc000001a780 0041 00000000 0x0 0x0
0xffffdc000001a800 0041 00000000 0x0 0x0
0xffffdc000001a880 0041 00000000 0x0 0x0
0xffffdc000001a900 0041 00000000 0x0 0x0
0xffffdc000001a980 0041 00000000 0x0 0x0
0xffffdc000001aa00 0041 00000000 0x0 0x0
0xffffdc000001aa80 0041 00000000 0x0 0x0
0xffffdc000001ab00 0041 00000000 0x0 0x0
0xffffdc000001ab80 0041 00000000 0x0 0x0
0xffffdc000001ac00 0041 00000000 0x0 0x0
0xffffdc000001ac80 0041 00000000 0x0 0x0
0xffffdc000001ad00 0041 00000000 0x0 0x0
0xffffdc000001ad80 0041 00000000 0x0 0x0
0xffffdc000001ae00 0041 00000000 0x0 0x0
0xffffdc000001ae80 0041 00000000 0x0 0x0
0xffffdc000001af00 0041 00000000 0x0 0x0
0xffffdc000001af80 0041 00000000 0x0 0x0
0xffffdc000001b000 0041 00000000 0x0 0x0
0xffffdc000001b080 0041 00000000 0x0 0x0
0xffffdc000001b100 0041 00000000 0x0 0x0
0xffffdc000001b180 0041 00000000 0x0 0x0
0xffffdc000001b200 0041 00000000 0x0 0x0
0xffffdc000001b280 0041 00000000 0x0 0x0
0xffffdc000001b300 0041 00000000 0x0 0x0
0xffffdc000001b380 0041 00000000 0x0 0x0
0xffffdc000001b400 0041 00000000 0x0 0x0
0xffffdc000001b480 0041 00000000 0x0 0x0
0xffffdc000001b500 0041 00000000 0x0 0x0
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0xffffdc000002a080 0001 00000000 0x0 0x0
0xffffdc000002a100 0001 00000000 0x0 0x0
0xffffdc000002a180 0001 00000000 0x0 0x0
0xffffdc000002a200 0001 00000000 0x0 0x0
0xffffdc000002a280 0001 00000000 0x0 0x0
0xffffdc000002a300 0001 00000000 0x0 0x0
0xffffdc000002a380 0001 00000000 0x0 0x0
0xffffdc000002a400 0001 00000000 0x0 0x0
0xffffdc000002a480 0001 00000000 0x0 0x0
0xffffdc000002a500 0001 00000000 0x0 0x0
0xffffdc000002a580 0001 00000000 0x0 0x0
0xffffdc000002a600 0001 00000000 0x0 0x0
0xffffdc000002a680 0001 00000000 0x0 0x0
0xffffdc000002a700 0001 00000000 0x0 0x0
0xffffdc000002a780 0001 00000000 0x0 0x0
0xffffdc000002a800 0001 00000000 0x0 0x0
0xffffdc000002a880 0001 00000000 0x0 0x0
0xffffdc000002a900 0001 00000000 0x0 0x0
0xffffdc000002a980 0001 00000000 0x0 0x0
0xffffdc000002aa00 0001 00000000 0x0 0x0
0xffffdc000002aa80 0001 00000000 0x0 0x0
0xffffdc000002ab00 0001 00000000 0x0 0x0
0xffffdc000002ab80 0001 00000000 0x0 0x0
0xffffdc000002ac00 0001 00000000 0x0 0x0
0xffffdc000002ac80 0001 00000000 0x0 0x0
0xffffdc000002ad00 0001 00000000 0x0 0x0
0xffffdc000002ad80 0001 00000000 0x0 0x0
0xffffdc000002ae00 0001 00000000 0x0 0x0
0xffffdc000002ae80 0001 00000000 0x0 0x0
0xffffdc000002af00 0001 00000000 0x0 0x0
0xffffdc000002af80 0001 00000000 0x0 0x0
0xffffdc000002b000 0001 00000000 0x0 0x0
0xffffdc000002b080 0001 00000000 0x0 0x0
0xffffdc000002b100 0001 00000000 0x0 0x0
0xffffdc000002b180 0001 00000000 0x0 0x0
0xffffdc000002b200 0001 00000000 0x0 0x0
0xffffdc000002b280 0001 00000000 0x0 0x0
0xffffdc000002b300 0001 00000000 0x0 0x0
0xffffdc000002b380 0001 00000000 0x0 0x0
0xffffdc000002b400 0001 00000000 0x0 0x0
0xffffdc000002b480 0001 00000000 0x0 0x0
0xffffdc000002b500 0001 00000000 0x0 0x0
0xffffdc000002b580 0001 00000000 0x0 0x0
0xffffdc000002b600 0001 00000000 0x0 0x0
0xffffdc000002b680 0001 00000000 0x0 0x0
0xffffdc000002b700 0001 00000000 0x0 0x0
0xffffdc000002b780 0001 00000000 0x0 0x0
0xffffdc000002b800 0001 00000000 0x0 0x0
0xffffdc000002b880 0001 00000000 0x0 0x0
0xffffdc000002b900 0001 00000000 0x0 0x0
0xffffdc000002b980 0001 00000000 0x0 0x0
0xffffdc000002ba00 0001 00000000 0x0 0x0
0xffffdc000002ba80 0001 00000000 0x0 0x0
0xffffdc000002bb00 0001 00000000 0x0 0x0
0xffffdc000002bb80 0001 00000000 0x0 0x0
0xffffdc000002bc00 0001 00000000 0x0 0x0
0xffffdc000002bc80 0001 00000000 0x0 0x0
0xffffdc000002bd00 0001 00000000 0x0 0x0
0xffffdc000002bd80 0001 00000000 0x0 0x0
0xffffdc000002be00 0001 00000000 0x0 0x0
0xffffdc000002be80 0001 00000000 0x0 0x0
0xffffdc000002bf00 0001 00000000 0x0 0x0
0xffffdc000002bf80 0001 00000000 0x0 0x0
0xffffdc000002c000 0001 00000000 0x0 0x0
0xffffdc000002c080 0001 00000000 0x0 0x0
0xffffdc000002c100 0001 00000000 0x0 0x0
0xffffdc000002c180 0001 00000000 0x0 0x0
0xffffdc000002c200 0001 00000000 0x0 0x0
0xffffdc000002c280 0001 00000000 0x0 0x0
0xffffdc000002c300 0001 00000000 0x0 0x0
0xffffdc000002c380 0001 00000000 0x0 0x0
0xffffdc000002c400 0001 00000000 0x0 0x0
0xffffdc000002c480 0001 00000000 0x0 0x0
0xffffdc000002c500 0001 00000000 0x0 0x0
0xffffdc000002c580 0001 00000000 0x0 0x0
0xffffdc000002c600 0001 00000000 0x0 0x0
0xffffdc000002c680 0001 00000000 0x0 0x0
0xffffdc000002c700 0001 00000000 0x0 0x0
0xffffdc000002c780 0001 00000000 0x0 0x0
0xffffdc000002c800 0001 00000000 0x0 0x0
0xffffdc000002c880 0001 00000000 0x0 0x0
0xffffdc000002c900 0001 00000000 0x0 0x0
0xffffdc000002c980 0001 00000000 0x0 0x0
0xffffdc000002ca00 0001 00000000 0x0 0x0
0xffffdc000002ca80 0001 00000000 0x0 0x0
0xffffdc000002cb00 0001 00000000 0x0 0x0
0xffffdc000002cb80 0001 00000000 0x0 0x0
0xffffdc000002cc00 0001 00000000 0x0 0x0
0xffffdc000002cc80 0001 00000000 0x0 0x0
0xffffdc000002cd00 0001 00000000 0x0 0x0
0xffffdc000002cd80 0001 00000000 0x0 0x0
0xffffdc000002ce00 0001 00000000 0x0 0x0
0xffffdc000002ce80 0001 00000000 0x0 0x0
0xffffdc000002cf00 0001 00000000 0x0 0x0
0xffffdc000002cf80 0001 00000000 0x0 0x0
0xffffdc000002d000 0001 00000000 0x0

Tested on:

commit: bd84a082 Add PRIuVSIZE
git tree: https://github.com/NetBSD/src trunk
console output: https://syzkaller.appspot.com/x/log.txt?x=1750baa2080000
kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=442c033feb784d055185
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63
patch: https://syzkaller.appspot.com/x/patch.diff?x=16bc93f0080000

syzbot

unread,
Jul 7, 2022, 12:22:08 PM7/7/22
to rias...@netbsd.org, syzkaller-...@googlegroups.com
Hello,

syzbot tried to test the proposed patch but the build/boot failed:

| / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ +1034592| / - \ | / [1510368- \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ +976997| / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | / - \ | ]=0x6a5feb0
/ - \ | / - \ | / - \ | / - \ | / - \ | / - \ | Loading /var/db/entropy-file
[ 1.0000000] cpu_rng: rdrand/rdseed
[ 1.0000000] entropy: ready
[ 1.0000000] entropy: entering seed from bootloader with 256 bits of entropy
[ 1.0000000] ksyms: checking .text
[ 1.0000000] ksyms: checking .rodata.hotpatch
[ 1.0000000] ksyms: checking .rodata
[ 1.0000000] ksyms: checking link_set_x86_hotpatch_descriptors
[ 1.0000000] ksyms: checking link_set_sdt_providers_set
[ 1.0000000] ksyms: checking link_set_sdt_probes_set
[ 1.0000000] ksyms: checking link_set_sdt_argtypes_set
[ 1.0000000] ksyms: checking link_set_modules
[ 1.0000000] ksyms: checking link_set_sysctl_funcs
[ 1.0000000] ksyms: checking link_set_acpi_device_calls
[ 1.0000000] ksyms: checking link_set_evcnts
[ 1.0000000] ksyms: checking link_set_linux_module_param_info
[ 1.0000000] ksyms: checking link_set_linux_module_param_desc
[ 1.0000000] ksyms: checking link_set_domains
[ 1.0000000] ksyms: checking link_set_ieee80211_funcs
[ 1.0000000] ksyms: checking link_set_ah_chips
[ 1.0000000] ksyms: checking link_set_ah_rfs
[ 1.0000000] ksyms: checking link_set_dkwedge_methods
[ 1.0000000] ksyms: checking link_set_prop_linkpools
[ 1.0000000] ksyms: checking .data
[ 1.0000000] ksyms: checking .data.cacheline_aligned
[ 1.0000000] ksyms: checking .data.read_mostly
[ 1.0000000] ksyms: checking .bss
[ 1.0000000] ksyms: checking .note.netbsd.ident
[ 1.0000000] ksyms: checking .note.Xen
[ 1.0000000] ksyms: checking .ident
[ 1.0000000] ksyms: checking .comment
[ 1.0000000] ksyms: checking .gnu_debuglink
[ 1.0000000] ksyms: checking .symtab
[ 1.0000000] ksyms: checking .strtab
[ 1.0000000] ksyms: checking .shstrtab
[ 1.0000000] Loaded initial symtab at 0xffffffff86a00a68, strtab at 0xffffffff86b71648, # entries 62932
[ 1.0000000] Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
[ 1.0000000] 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
[ 1.0000000] 2018, 2019, 2020, 2021, 2022
[ 1.0000000] The NetBSD Foundation, Inc. All rights reserved.
[ 1.0000000] Copyright (c) 1982, 1986, 1989, 1991, 1993
[ 1.0000000] The Regents of the University of California. All rights reserved.

[ 1.0000000] NetBSD 9.99.98 (GENERIC_SYZKALLER) #0: Thu Jul 7 16:11:41 UTC 2022
[ 1.0000000] root@ci2:/syzkaller/jobs/netbsd/kernel/sys/arch/amd64/compile/obj/GENERIC_SYZKALLER
[ 1.0000000] total memory = 8191 MB
[ 1.0000000] avail memory = 4044 MB
[ 1.0000030] mainbus0 (root)
[ 1.0000030] ACPI: RSDP 0x00000000000F2740 000014 (v00 Google)
[ 1.0000030] ACPI: RSDT 0x00000000BFFFFF90 000038 (v01 Google GOOGRSDT 00000001 GOOG 00000001)
[ 1.0000030] ACPI: FACP 0x00000000BFFFF330 0000F4 (v02 Google GOOGFACP 00000001 GOOG 00000001)
[ 1.0000030] ACPI: DSDT 0x00000000BFFFD8C0 001A64 (v01 Google GOOGDSDT 00000001 GOOG 00000001)
[ 1.0000030] ACPI: FACS 0x00000000BFFFD880 000040
[ 1.0000030] ACPI: SRAT 0x00000000BFFFFE60 0000C8 (v03 Google GOOGSRAT 00000001 GOOG 00000001)
[ 1.0000030] ACPI: APIC 0x00000000BFFFFDB0 000076 (v05 Google GOOGAPIC 00000001 GOOG 00000001)
[ 1.0000030] ACPI: SSDT 0x00000000BFFFF430 000980 (v01 Google GOOGSSDT 00000001 GOOG 00000001)
[ 1.0000030] ACPI: WAET 0x00000000BFFFFE30 000028 (v01 Google GOOGWAET 00000001 GOOG 00000001)
[ 1.0000030] ACPI: 2 ACPI AML tables successfully acquired and loaded
[ 1.0000030] ioapic0 at mainbus0 apid 0
[ 1.0000030] cpu0 at mainbus0 apid 0
[ 1.0000030] cpu0: Intel(R) Xeon(R) CPU @ 2.20GHz, id 0x406f0
[ 1.0000030] cpu0: node 0, package 0, core 0, smt 0
[ 1.0000030] cpu1 at mainbus0 apid 1
[ 1.0000030] cpu1: Intel(R) Xeon(R) CPU @ 2.20GHz, id 0x406f0
[ 1.0000030] cpu1: node 0, package 0, core 0, smt 1
[ 1.0000030] acpi0 at mainbus0: Intel ACPICA 20211217
[ 1.0000030] acpi0: fixed power button present
[ 1.0000030] acpi0: fixed sleep button present
[ 1.0004656] pckbc1 at acpi0 (KBD, PNP0303) (kbd port): io 0x60,0x64 irq 1
[ 1.0004656] pckbc2 at acpi0 (MOU, PNP0F13) (aux port): irq 12
[ 1.0004656] com0 at acpi0 (COM1, PNP0501-1): io 0x3f8-0x3ff irq 4
[ 1.0004656] com: ns16550a, 16-byte FIFO
[ 1.0004656] com0: console
[ 1.0004656] com1 at acpi0 (COM2, PNP0501-2): io 0x2f8-0x2ff irq 3
[ 1.0004656] com1: ns16550a, 16-byte FIFO
[ 1.0004656] com2 at acpi0 (COM3, PNP0501-3): io 0x3e8-0x3ef irq 6
[ 1.0004656] com2: ns16550a, 16-byte FIFO
[ 1.0004656] com3 at acpi0 (COM4, PNP0501-4): io 0x2e8-0x2ef irq 7
[ 1.0004656] com3: ns16550a, 16-byte FIFO
[ 1.0004656] PEVT (QEMU0001) at acpi0 not configured
[ 1.0004656] ACPI: Enabled 16 GPEs in block 00 to 0F
[ 1.0004656] pckbd0 at pckbc1 (kbd slot)
[ 1.0004656] pckbc1: using irq 1 for kbd slot
[ 1.0004656] wskbd0 at pckbd0 mux 1
[ 1.0004656] pms0 at pckbc1 (aux slot)
[ 1.0004656] pckbc1: using irq 12 for aux slot
[ 1.0004656] wsmouse0 at pms0 mux 0
[ 1.0004656] pci0 at mainbus0 bus 0: configuration mode 1
[ 1.0004656] pchb0 at pci0 dev 0 function 0: Intel 82441FX (PMC) PCI and Memory Controller (rev. 0x02)
[ 1.0004656] pcib0 at pci0 dev 1 function 0: Intel 82371AB (PIIX4) PCI-ISA Bridge (rev. 0x03)
[ 1.0004656] piixpm0 at pci0 dev 1 function 3: Intel 82371AB (PIIX4) Power Management Controller (rev. 0x03)
[ 1.0004656] piixpm0: SMBus disabled
[ 1.0004656] virtio0 at pci0 dev 3 function 0
[ 1.0004656] virtio0: SCSI device (rev. 0x00)
[ 1.0004656] vioscsi0 at virtio0: features: 0
[ 1.0004656] vioscsi0: cmd_per_lun 256 qsize 8192 seg_max 64 max_target 253 max_lun 1
[ 1.0004656] virtio0: config interrupting at msix0 vec 0
[ 1.0004656] virtio0: queues interrupting at msix0 vec 1
[ 1.0004656] scsibus0 at vioscsi0: 254 targets, 2 luns per target
[ 1.0004656] virtio1 at pci0 dev 4 function 0
[ 1.0004656] virtio1: network device (rev. 0x00)
[ 1.0004656] vioif0 at virtio1: features: 0x20030020<EVENT_IDX,CTRL_VQ,STATUS,MAC>
[ 1.0004656] vioif0: Ethernet address 42:01:0a:80:01:6d
[ 1.0004656] virtio1: config interrupting at msix1 vec 0
[ 1.0004656] virtio1: queues interrupting at msix1 vec 1
[ 1.0004656] genfb0 at pci0 dev 5 function 0: vendor 1ae0 product a002 (rev. 0x01)
[ 1.0004656] virtio2 at pci0 dev 6 function 0
[ 1.0004656] virtio2: memory balloon device (rev. 0x00)
[ 1.0004656] viomb0 at virtio2: features: 0x1<MUST_TELL_HOST>
[ 1.0004656] virtio2: interrupting at ioapic0 pin 10
[ 1.0004656] virtio3 at pci0 dev 7 function 0
[ 1.0004656] virtio3: entropy device (rev. 0x00)
[ 1.0004656] viornd0 at virtio3: features: 0
[ 1.0004656] virtio3: interrupting at ioapic0 pin 11
[ 1.0004656] isa0 at pcib0
[ 1.0004656] attimer0 at isa0 port 0x40-0x43
[ 1.0004656] pcppi0 at isa0 port 0x61
[ 1.0004656] spkr0 at pcppi0: PC Speaker
[ 1.0004656] wsbell at spkr0 not configured
[ 1.0004656] midi0 at pcppi0: PC speaker
[ 1.0004656] sysbeep0 at pcppi0
[ 1.0004656] attimer0: attached to pcppi0
[ 1.0004656] acpicpu0 at cpu0: ACPI CPU
[ 1.0004656] acpicpu1 at cpu1: ACPI CPU
[ 2.0272646] cpu0 has 2 core siblings: cpu1 cpu0
[ 2.0272646] cpu0 has 2 pkg siblings: cpu1 cpu0
[ 2.0405724] cpu0 has 1 1st siblings: cpu0
[ 2.0405724] cpu0 first in package: cpu0
[ 2.0494383] cpu1 has 2 core siblings: cpu0 cpu1
[ 2.0494383] cpu1 has 2 pkg siblings: cpu0 cpu1
[ 2.0577508] cpu1 has 1 1st siblings: cpu0
[ 2.0577508] cpu1 first in package: cpu0
[ 2.2268879] sd0 at scsibus0 target 1 lun 0: <Google, PersistentDisk, 1> disk fixed
[ 2.2368657] sd0: fabricating a geometry
[ 2.2368657] sd0: 2048 MB, 2048 cyl, 64 head, 32 sec, 512 bytes/sect x 4194304 sectors
[ 2.2468803] sd0: fabricating a geometry
[ 2.2668642] dk0 at sd0: "49b813d1-8009-4c4f-b3e1-2cc288366ecc", 2097085 blocks at 64, type: ffs
[ 2.2768703] dk1 at sd0: "2a5f9479-33b7-499d-8cc4-f8d9ae0937b7", 2097119 blocks at 2097152, type: swap
[ 2.2768703] sd0: async, 8-bit transfers, tagged queueing
[ 2.7168545] usb0 at vhci0: USB revision 2.0
[ 2.7368820] uhub0 at usb0: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 3.2068688] usb1 at vhci1: USB revision 2.0
[ 3.2368987] uhub1 at usb1: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 3.7268666] usb2 at vhci2: USB revision 2.0
[ 3.7568864] uhub2 at usb2: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 4.2368648] usb3 at vhci3: USB revision 2.0
[ 4.2569012] uhub3 at usb3: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 4.7368542] usb4 at vhci4: USB revision 2.0
[ 4.7568813] uhub4 at usb4: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 5.2468564] usb5 at vhci5: USB revision 2.0
[ 5.2668826] uhub5 at usb5: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 5.7468561] usb6 at vhci6: USB revision 2.0
[ 5.7768948] uhub6 at usb6: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 6.2368518] usb7 at vhci7: USB revision 2.0
[ 6.2668844] uhub7 at usb7: NetBSD (0x0000) VHCI root hub (0x0000), class 9/0, rev 2.00/1.00, addr 1
[ 6.3168463] boot device: sd0
[ 6.3168463] root on dk0 dumps on dk1
[ 6.3368933] dump_misc_init: max_paddr = 0x240000000
[ 6.3368933] mountroot: trying lfs...
[ 6.3494569] mountroot: trying ffs...
[ 6.3494569] root file system type: ffs
[ 6.3604909] kern.module.path=/stand/amd64/9.99.98/modules
[ 6.3672309] clock: unknown CMOS layout
[ 6.4068820] init: copying out path `/sbin/init' 11
Thu Jul 7 16:15:43 UTC 2022
Fast boot: skipping disk checks.
[ 7.6368437] /dev/dk0: file system not clean (fs_clean=0x4); please fsck(8)
[ 7.6368437] /dev/dk0: lost blocks 0 files 0
swapctl: setting dump device to /dev/dk1
swapctl: adding /dev/dk1 as swap device at priority 0
Starting file system checks:
Loaded entropy from /var/db/entropy-file.
Setting tty flags.
Setting sysctl variables:
ddb.onpanic: 1 -> 1
ddb.commandonenter: trace;show registers -> "show registers;bt;show panic;ps;show all locks;show all pages;show all pools"
ddb.lines: 24 -> 0
ddb.maxwidth: 80 -> 0
Starting network.
ifconfig: SIOCAIFADDR: Invalid argument
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
route: writing to routing socket: Network is unreachable
IPv6 mode: host
Configuring network interfaces: vioif0dhcpcd-9.1.1 starting
DUID 00:04:d1:aa:f5:a0:1e:7b:90:d7:5b:f3:c7:76:bd:81:6a:77
vioif0: SIOCGIFINFO_FLAGS: Invalid argument
vioif0: SIOCSIFINFO_FLAGS: Invalid argument
[ 9.8317745] vioif0: link state UP (was UNKNOWN)
vioif0: carrier acquired
vioif0: SIOCGIFINFO_FLAGS: Invalid argument
vioif0: SIOCSIFINFO_FLAGS: Invalid argument
vioif0: IAID 0a:80:01:6d
ipv6_readsecret: cannot write secret: No such file or directory
vioif0: ipv6_start: No such file or directory
vioif0: soliciting a DHCP lease
vioif0: offered 10.128.1.109 from 169.254.169.254
ipv4_addaddr: if_addaddress: Invalid argument
timed out
dhcpcd exited
.
Adding interface aliases:.
Waiting for duplicate address detection to finish...
Starting dhcpcd.
vioif0: SIOCGIFINFO_FLAGS: Invalid argument
vioif0: SIOCSIFINFO_FLAGS: Invalid argument
vioif0: SIOCGIFINFO_FLAGS: Invalid argument
vioif0: SIOCSIFINFO_FLAGS: Invalid argument
ipv4_addaddr: if_addaddress: Invalid argument
timed out
Building databases: dev, utmp, utmpx.
wsconscfg: Cannot open `/dev/ttyEcfg': Device not configured
wsconscfg: Cannot open `/dev/ttyEcfg': Device not configured
wsconscfg: Cannot open `/dev/ttyEcfg': Device not configured
wsconscfg: Cannot open `/dev/ttyEcfg': Device not configured
Starting syslogd.
Mounting all file systems...
[ 73.1567211] /dev/dk0: file system not clean (fs_clean=0x4); please fsck(8)
[ 73.1721736] /dev/dk0: lost blocks 0 files 0
Clearing temporary files.
Checking quotas: done.
swapctl: setting dump device to /dev/dk1
Starting virecover.
Checking for core dump...
savecore: no core dump
Starting local daemons:.
Updating motd.
Starting powerd.
Starting sshd.
Thu Jul 7 16:16:53 UTC 2022
Jul 7 16:16:56 getty[813]: /dev/ttyE2: Device not configured

Jul 7 16:16:56 getty[815]: /dev/ttyE1: Device not configured

Jul 7 16:16:56 getty[720]: /dev/ttyE3: Device not configured



NetBSD/amd64 (Amnesiac) (constty)



login:

syzkaller build log:
go env (err=<nil>)
GO111MODULE="auto"
GOARCH="amd64"
GOBIN=""
GOCACHE="/syzkaller/.cache/go-build"
GOENV="/syzkaller/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/syzkaller/jobs/netbsd/gopath/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/syzkaller/jobs/netbsd/gopath"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.17"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/syzkaller/jobs/netbsd/gopath/src/github.com/google/syzkaller/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build1247477837=/tmp/go-build -gno-record-gcc-switches"

git status (err=<nil>)
HEAD detached at bff65f44b
nothing to commit, working tree clean


go list -f '{{.Stale}}' ./sys/syz-sysgen | grep -q false || go install ./sys/syz-sysgen
make .descriptions
bin/syz-sysgen
touch .descriptions
GOOS=netbsd GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_netbsd syz_arch_amd64 " -o ./bin/netbsd_amd64/syz-fuzzer github.com/google/syzkaller/syz-fuzzer
GOOS=netbsd GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_netbsd syz_arch_amd64 " -o ./bin/netbsd_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog
GOOS=netbsd GOARCH=amd64 go build "-ldflags=-s -w -X github.com/google/syzkaller/prog.GitRevision=bff65f44b47bd73f56c3d6a5c3899de5f5775136 -X 'github.com/google/syzkaller/prog.gitRevisionDate=20220704-135716'" "-tags=syz_target syz_os_netbsd syz_arch_amd64 " -o ./bin/netbsd_amd64/syz-stress github.com/google/syzkaller/tools/syz-stress
mkdir -p ./bin/netbsd_amd64
/syzkaller/shared/netbsd/tools/bin/x86_64--netbsd-g++ -o ./bin/netbsd_amd64/syz-executor executor/executor.cc \
-m64 --sysroot /syzkaller/shared/netbsd/dest/ -O2 -pthread -Wall -Werror -Wparentheses -Wframe-larger-than=16384 -fpermissive -w -DGOOS_netbsd=1 -DGOARCH_amd64=1 \
-DHOSTGOOS_linux=1 -DGIT_REVISION=\"bff65f44b47bd73f56c3d6a5c3899de5f5775136\"


Error text is too large and was truncated, full error text is at:
https://syzkaller.appspot.com/x/error.txt?x=151c4d58080000


Tested on:

commit: 2f5de0fa Convert CTASSERT(9) for PAGE_{SIZE,MASK} into..
kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=442c033feb784d055185
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63
patch: https://syzkaller.appspot.com/x/patch.diff?x=13cfdd84080000

syzbot

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Jul 7, 2022, 3:15:20 PM7/7/22
to rias...@netbsd.org, syzkaller-...@googlegroups.com
Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+442c03...@syzkaller.appspotmail.com

Tested on:

commit: 694b39ba uvm: CTASSERT about MIN_PAGE_SIZE, which is c..
console output: https://syzkaller.appspot.com/x/log.txt?x=14d9c597f00000
kernel config: https://syzkaller.appspot.com/x/.config?x=739e57438eb9ed9e
dashboard link: https://syzkaller.appspot.com/bug?extid=442c033feb784d055185
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63
patch: https://syzkaller.appspot.com/x/patch.diff?x=10f8d934080000

Note: testing is done by a robot and is best-effort only.
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