UBSan: Undefined Behavior in union_statvfs

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syzbot

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Jan 24, 2023, 9:29:39 AM1/24/23
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Hello,

syzbot found the following issue on:

HEAD commit: 49ff686c908d s/makre/make/ in comment.
git tree: netbsd
console output: https://syzkaller.appspot.com/x/log.txt?x=121786f5480000
kernel config: https://syzkaller.appspot.com/x/.config?x=1420f906d33d9f1f
dashboard link: https://syzkaller.appspot.com/bug?extid=2f69733d3d76ec353526
compiler: g++ (Debian 10.2.1-6) 10.2.1 20210110

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/754db77e94ff/disk-49ff686c.raw.xz
netbsd.gdb: https://storage.googleapis.com/syzbot-assets/63be15289a77/netbsd-49ff686c.gdb.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2f6973...@syzkaller.appspotmail.com

[ 139.0031030] panic: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/fs/union/union_vfsops.c:441:11, member access within misaligned address 0xd0000000c for type 'struct vnode' which requires 64 byte alignment

[ 139.0286731] cpu0: Begin traceback...
[ 139.0530914] vpanic() at netbsd:vpanic+0x2f2 sys/kern/subr_prf.c:291
[ 139.1630902] Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
[ 139.2530893] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0xfc sys/../common/lib/libc/misc/ubsan.c:432
[ 139.3230917] union_statvfs() at netbsd:union_statvfs+0x7ae sys/fs/union/union_vfsops.c:441
[ 139.4030908] VFS_STATVFS() at netbsd:VFS_STATVFS+0xa4 sys/kern/vfs_subr.c:1482
[ 139.4730896] mount_domount() at netbsd:mount_domount+0x80d sys/kern/vfs_mount.c:907
[ 139.5530897] do_sys_mount() at netbsd:do_sys_mount+0x288 sys/kern/vfs_syscalls.c:616
[ 139.6230915] compat_40_sys_mount() at netbsd:compat_40_sys_mount+0x5c sys/compat/common/vfs_syscalls_40.c:99
[ 139.7030905] sys___syscall() at netbsd:sys___syscall+0x1e4 sy_call sys/sys/syscallvar.h:65 [inline]
[ 139.7030905] sys___syscall() at netbsd:sys___syscall+0x1e4 sys/kern/sys_syscall.c:90
[ 139.7830924] syscall() at netbsd:syscall+0x2da sy_call sys/sys/syscallvar.h:65 [inline]
[ 139.7830924] syscall() at netbsd:syscall+0x2da sy_invoke sys/sys/syscallvar.h:94 [inline]
[ 139.7830924] syscall() at netbsd:syscall+0x2da sys/arch/x86/x86/syscall.c:138
[ 139.7930918] --- syscall (number 21 via SYS_syscall) ---
[ 139.8230908] netbsd:syscall+0x2da:
[ 139.8230908] cpu0: End traceback...
[ 139.8340904] fatal breakpoint trap in supervisor mode
[ 139.8340904] trap type 1 code 0 rip 0xffffffff80235375 cs 0x8 rflags 0x246 cr2 0x1b3342a000 ilevel 0 rsp 0xffffcb8248ffe750
[ 139.8498175] curlwp 0xffffc0ddc1e15740 pid 3067.3218 lowest kstack 0xffffcb8248ffa2c0
Stopped in pid 3067.3218 (syz-executor.2) at netbsd:breakpoint+0x5: leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xec sys/ddb/db_panic.c:69
vpanic() at netbsd:vpanic+0x2f2 sys/kern/subr_prf.c:291
Report() at netbsd:Report+0x3b sys/../common/lib/libc/misc/ubsan.c:1352
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0xfc sys/../common/lib/libc/misc/ubsan.c:432
union_statvfs() at netbsd:union_statvfs+0x7ae sys/fs/union/union_vfsops.c:441
VFS_STATVFS() at netbsd:VFS_STATVFS+0xa4 sys/kern/vfs_subr.c:1482
mount_domount() at netbsd:mount_domount+0x80d sys/kern/vfs_mount.c:907
do_sys_mount() at netbsd:do_sys_mount+0x288 sys/kern/vfs_syscalls.c:616
compat_40_sys_mount() at netbsd:compat_40_sys_mount+0x5c sys/compat/common/vfs_syscalls_40.c:99
sys___syscall() at netbsd:sys___syscall+0x1e4 sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0x1e4 sys/kern/sys_syscall.c:90
syscall() at netbsd:syscall+0x2da sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x2da sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x2da sys/arch/x86/x86/syscall.c:138
--- syscall (number 21 via SYS_syscall) ---
netbsd:syscall+0x2da:
Panic string: UBSan: Undefined Behavior in /syzkaller/managers/ci2-netbsd-kubsan/kernel/sys/fs/union/union_vfsops.c:441:11, member access within misaligned address 0xd0000000c for type 'struct vnode' which requires 64 byte alignment

PID LID S CPU FLAGS STRUCT LWP * NAME WAIT
3217 3214 2 0 0 ffffc0ddc0946b40 syz-executor.3
3217 3007 2 0 0 ffffc0ddc37d7240 syz-executor.3
3217 2155 2 0 0 ffffc0ddc060d200 syz-executor.3
3217 3066 2 0 0 ffffc0ddc09462c0 syz-executor.3
3217 3062 2 0 0 ffffc0ddc41881c0 syz-executor.3
3217 3057 2 0 0 ffffc0ddc0787040 syz-executor.3
3217 3927 2 0 0 ffffc0ddc133aac0 syz-executor.3
3217 3211 2 0 0 ffffc0ddc4188600 syz-executor.3
3217 3217 2 1 10000000 ffffc0ddc18e4180 syz-executor.3
3068 3068 2 0 0 ffffc0ddc340f100 syz-executor.0
4553 4544 2 0 100 ffffc0ddc2651940 syz-executor.1
4553 4553 3 0 180 ffffc0ddc6f6ebc0 syz-executor.1 parked
4331 3222 2 0 100100 ffffc0ddc340f540 syz-executor.4
4331 3207 2 0 100100 ffffc0ddc349cb00 syz-executor.4
4331 4331 3 1 10000000 ffffc0ddb9868a00 syz-executor.4 lwpwait
3067 >3218 7 0 100100 ffffc0ddc1e15740 syz-executor.2
3067 3067 3 1 10000000 ffffc0ddb720c9c0 syz-executor.2 lwpwait
3020 3020 3 1 40180 ffffc0ddc1f57b40 syz-executor.0 parked
2960 2960 3 0 180 ffffc0ddb4509980 syz-executor.3 parked
2552 2552 2 0 140 ffffc0ddc1f57700 syz-executor.3
2878 >2878 7 1 140 ffffc0ddb98685c0 syz-executor.4
3669 3669 2 0 140 ffffc0ddc37d7ac0 syz-executor.1
3118 3118 2 1 140 ffffc0ddb4868500 syz-executor.0
2476 2476 2 1 140 ffffc0ddc349c280 syz-executor.2
549 549 3 1 180 ffffc0ddc060d640 syz-executor.3 parked
1869 1869 3 0 180 ffffc0ddbaa30a40 syz-executor.3 parked
1586 1586 3 0 180 ffffc0ddc060da80 syz-executor.3 parked
500 500 3 0 180 ffffc0ddb9868180 syz-executor.1 parked
1714 1714 3 0 180 ffffc0ddc1e15300 syz-executor.5 parked
412 412 3 1 180 ffffc0ddbfd95080 syz-executor.5 parked
404 404 3 1 180 ffffc0ddc16fbb00 syz-executor.5 parked
1372 1372 3 1 180 ffffc0ddc1a22bc0 syz-executor.0 parked
1240 1240 2 0 40 ffffc0ddb41e9080 syz-executor.5
1080 2031 2 0 140 ffffc0ddc26510c0 syz-fuzzer
1080 1324 3 0 180 ffffc0ddc133a680 syz-fuzzer parked
1080 1198 3 0 180 ffffc0ddbaa301c0 syz-fuzzer wait
1080 1247 3 0 1c0 ffffc0ddb41e94c0 syz-fuzzer wait
1080 1245 3 1 1c0 ffffc0ddb48680c0 syz-fuzzer parked
1080 1239 3 0 1c0 ffffc0ddb337c480 syz-fuzzer wait
1080 1242 3 1 180 ffffc0ddb47ae9c0 syz-fuzzer parked
1080 829 3 0 180 ffffc0ddb31bb280 syz-fuzzer parked
1080 929 3 1 180 ffffc0ddb4509100 syz-fuzzer parked
1080 449 3 1 1c0 ffffc0ddb4509540 syz-fuzzer wait
1080 941 3 0 1c0 ffffc0ddb47ae140 syz-fuzzer wait
1080 1231 3 0 180 ffffc0ddb31bbb00 syz-fuzzer parked
1080 1233 2 0 140 ffffc0ddb36debc0 syz-fuzzer
1080 1080 3 0 180 ffffc0ddb2e57200 syz-fuzzer wait
1235 1235 3 1 180 ffffc0ddb2e95ac0 sshd select
1151 1151 3 1 180 ffffc0ddb4868940 getty nanoslp
1223 1223 3 0 180 ffffc0ddb31bb6c0 getty nanoslp
1082 1082 3 0 180 ffffc0ddb337c8c0 getty nanoslp
1184 1184 3 0 1c0 ffffc0ddb47ae580 getty ttyraw
1102 1102 3 1 180 ffffc0ddb32c6b40 sshd select
852 852 3 0 180 ffffc0ddb36e1300 powerd kqueue
702 702 3 1 180 ffffc0ddb36e1740 syslogd kqueue
745 745 3 1 180 ffffc0ddb36e1b80 dhcpcd poll
742 742 3 1 180 ffffc0ddb36de340 dhcpcd poll
466 466 3 1 180 ffffc0ddb41e9900 dhcpcd poll
598 598 3 1 180 ffffc0ddb337c040 dhcpcd poll
292 292 3 1 180 ffffc0ddb36de780 dhcpcd poll
485 485 3 1 180 ffffc0ddb32c6700 dhcpcd poll
291 291 3 0 180 ffffc0ddb32c62c0 dhcpcd poll
1 1 3 0 180 ffffc0ddaac53980 init wait
0 4139 5 0 200 ffffc0ddbfd95900 (zombie)
0 1423 3 1 600 ffffc0ddc1f572c0 cgd/1 cgd
0 1439 3 0 600 ffffc0ddc16fb280 cgd/0 cgd
0 748 3 0 200 ffffc0ddb2e57640 physiod physiod
0 196 3 0 200 ffffc0ddb2e95680 pooldrain pooldrain
0 195 2 0 240 ffffc0ddb2e95240 ioflush
0 194 3 1 200 ffffc0ddb2e57a80 pgdaemon pgdaemon
0 170 3 1 200 ffffc0ddb0d97a40 usb7 usbevt
0 169 3 1 200 ffffc0ddb0d97600 usb6 usbevt
0 168 3 1 200 ffffc0ddb0d971c0 usb5 usbevt
0 167 3 1 200 ffffc0ddadd4aa00 usb4 usbevt
0 166 3 0 200 ffffc0ddadd4a5c0 usb3 usbevt
0 165 3 1 200 ffffc0ddadd4a180 usb2 usbevt
0 31 3 0 200 ffffc0ddaacad9c0 usb1 usbevt
0 63 3 0 200 ffffc0ddaacad580 usb0 usbevt
0 126 3 1 200 ffffc0ddaaae0740 usbtask-dr usbtsk
0 125 3 1 200 ffffc0ddaaae0b80 usbtask-hc usbtsk
0 124 3 0 200 ffffc0dda90a1b00 swwreboot swwreboot
0 123 3 0 200 ffffc0ddaacad140 npfgc0 npfgcw
0 122 3 1 200 ffffc0ddaac53540 rt_free rt_free
0 121 3 1 200 ffffc0ddaac53100 unpgc unpgc
0 120 2 0 200 ffffc0ddaac46940 key_timehandler
0 119 3 1 200 ffffc0ddaac46500 icmp6_wqinput/1 icmp6_wqinput
0 118 3 0 200 ffffc0ddaac460c0 icmp6_wqinput/0 icmp6_wqinput
0 117 2 0 200 ffffc0ddaac39900 nd6_timer
0 116 3 1 200 ffffc0ddaac394c0 carp6_wqinput/1 carp6_wqinput
0 115 3 0 200 ffffc0ddaac39080 carp6_wqinput/0 carp6_wqinput
0 114 3 1 200 ffffc0ddaac148c0 carp_wqinput/1 carp_wqinput
0 113 3 0 200 ffffc0ddaac14480 carp_wqinput/0 carp_wqinput
0 112 3 1 200 ffffc0ddaac14040 icmp_wqinput/1 icmp_wqinput
0 111 3 0 200 ffffc0ddaabd7bc0 icmp_wqinput/0 icmp_wqinput
0 110 2 0 200 ffffc0ddaabd7340 rt_timer
0 109 3 0 200 ffffc0ddaabd7780 vmem_rehash vmem_rehash
0 100 3 0 200 ffffc0ddaaae0300 entbutler entropy
0 99 3 1 200 ffffc0ddaa550b40 viomb balloon
0 98 3 1 200 ffffc0ddaa550700 vioif0_txrx/1 vioif0_txrx
0 97 3 0 200 ffffc0ddaa5502c0 vioif0_txrx/0 vioif0_txrx
0 30 3 0 200 ffffc0dda90a16c0 scsibus0 sccomp
0 29 3 1 200 ffffc0dda90a1280 pms0 pmsreset
0 28 3 1 200 ffffc0dda8facac0 xcall/1 xcall
0 27 1 1 200 ffffc0dda8fac680 softser/1
0 26 1 1 200 ffffc0dda8fac240 softclk/1
0 25 1 1 200 ffffc0dda8f87a80 softbio/1
0 24 1 1 200 ffffc0dda8f87640 softnet/1
0 23 1 1 201 ffffc0dda8f87200 idle/1
0 22 3 1 200 ffffc0ded732da40 lnxsyswq lnxsyswq
0 21 3 1 200 ffffc0ded732d600 lnxubdwq lnxubdwq
0 20 3 1 200 ffffc0ded732d1c0 lnxpwrwq lnxpwrwq
0 19 3 1 200 ffffc0ded7334a00 lnxlngwq lnxlngwq
0 18 3 1 200 ffffc0ded73345c0 lnxhipwq lnxhipwq
0 17 3 1 200 ffffc0ded7334180 lnxrcugc lnxrcugc
0 16 3 0 200 ffffc0ded73539c0 sysmon smtaskq
0 15 3 1 200 ffffc0ded7353580 pmfsuspend pmfsuspend
0 14 3 0 200 ffffc0ded7353140 pmfevent pmfevent
0 13 3 1 200 ffffc0ded735e980 sopendfree sopendfr
0 12 3 0 200 ffffc0ded735e540 ifwdog ifwdog
0 11 3 0 200 ffffc0ded735e100 iflnkst iflnkst
0 10 3 1 200 ffffc0ded8393940 nfssilly nfssilly
0 9 3 0 200 ffffc0ded8393500 vdrain vdrain
0 8 3 1 200 ffffc0ded83930c0 modunload mod_unld
0 7 3 0 200 ffffc0ded83ba900 xcall/0 xcall
0 6 1 0 200 ffffc0ded83ba4c0 softser/0
0 5 1 0 200 ffffc0ded83ba080 softclk/0
0 4 1 0 200 ffffc0ded83e98c0 softbio/0
0 3 1 0 200 ffffc0ded83e9480 softnet/0
0 2 1 0 201 ffffc0ded83e9040 idle/0
0 0 2 0 240 ffffffff86742940 swapper
[Locks tracked through LWPs]

****** LWP 3217.3217 (syz-executor.3) @ 0xffffc0ddc18e4180, l_stat=2

*** Locks held:

* Lock 0 (initialized at netbsd:pmap_ctor+0x6d sys/arch/x86/x86/pmap.c:2860)
lock address : ffffc0ddb3436580
type : sleep/adaptive
initialized : netbsd:pmap_ctor+0x6d
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 1
relevant lwp : 0xffffc0ddc18e4180 last held: 0xffffc0ddc18e4180
last locked* : netbsd:pmap_enter_ma+0x3c0
unlocked : netbsd:pmap_extract+0x2c8
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 4553.4544 (syz-executor.1) @ 0xffffc0ddc2651940, l_stat=2

*** Locks held:

* Lock 0 (initialized at netbsd:pmap_ctor+0x6d sys/arch/x86/x86/pmap.c:2860)
lock address : ffffc0ddb3fb5180
type : sleep/adaptive
initialized : netbsd:pmap_ctor+0x6d
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ddc2651940 last held: 0xffffc0ddc2651940
last locked* : netbsd:pmap_enter_ma+0x3c0
unlocked : netbsd:pmap_extract+0x2c8
owner field : 0xffffc0ddc2651940 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 1240.1240 (syz-executor.5) @ 0xffffc0ddb41e9080, l_stat=2

*** Locks held:

* Lock 0 (initialized at netbsd:vcache_alloc+0xba sys/kern/vfs_vnode.c:1391)
lock address : ffffc0ddb8e95ec0
type : sleep/adaptive
initialized : netbsd:vcache_alloc+0xba
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ddb41e9080 last held: 0xffffc0ddb41e9080
last locked* : netbsd:genfs_lock+0x220
unlocked : netbsd:genfs_unlock+0x50
owner/count : 0xffffc0ddb41e9080 flags : 0x0000000000000004
Turnstile: no active turnstile for this lock.

* Lock 1 (initialized at netbsd:vcache_alloc+0xba sys/kern/vfs_vnode.c:1391)
lock address : ffffc0ddc21fbc00
type : sleep/adaptive
initialized : netbsd:vcache_alloc+0xba
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ddb41e9080 last held: 0xffffc0ddb41e9080
last locked* : netbsd:genfs_lock+0x220
unlocked : netbsd:genfs_unlock+0x50
owner/count : 0xffffc0ddb41e9080 flags : 0x0000000000000004
Turnstile: no active turnstile for this lock.

*** Locks wanted: none

****** LWP 742.742 (dhcpcd) @ 0xffffc0ddb36de340, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffc0ddb36de340 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 466.466 (dhcpcd) @ 0xffffc0ddb41e9900, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffc0ddb41e9900 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 485.485 (dhcpcd) @ 0xffffc0ddb32c6700, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 1 last held: 0
relevant lwp : 0xffffc0ddb32c6700 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 291.291 (dhcpcd) @ 0xffffc0ddb32c62c0, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ddb32c62c0 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.11 (iflnkst) @ 0xffffc0ded735e100, l_stat=3

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ded735e100 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.5 (softclk/0) @ 0xffffc0ded83ba080, l_stat=1

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ded83ba080 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

****** LWP 0.0 (swapper) @ 0xffffffff86742940, l_stat=2

*** Locks held: none

*** Locks wanted:

* Lock 0 (initialized at netbsd:module_hook_init+0x1c sys/kern/kern_module_hook.c:132)
lock address : netbsd:module_hook
type : sleep/adaptive
initialized : netbsd:module_hook_init+0x1c
shared holds : 0 exclusive: 0
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffffff86742940 last held: 000000000000000000
last locked : 0
unlocked* : 0
owner field : 000000000000000000 wait/spin: 0/0
Turnstile: no active turnstile for this lock.

[Locks tracked through CPUs]

******* Locks held on cpu0:

* Lock 0 (initialized at netbsd:kprintf_init+0x72 sys/kern/subr_prf.c:155)
lock address : netbsd:kprintf_mtx
type : spin
initialized : netbsd:kprintf_init+0x72
shared holds : 0 exclusive: 1
shares wanted: 0 exclusive: 0
relevant cpu : 0 last held: 0
relevant lwp : 0xffffc0ddc1e15740 last held: 0xffffc0ddc1e15740
last locked* : netbsd:kprintf_lock+0x50
unlocked : netbsd:kprintf_unlock+0x70
owner field : 0x0000000000000800 wait/spin: 0/1

PAGE FLAG PQ UOBJECT UANON
0xffffcb8000007180 0045 00000000 0x0 0x0
0xffffcb8000007200 0045 00000000 0x0 0x0
0xffffcb8000007280 0045 00000000 0x0 0x0
0xffffcb8000007300 0045 00000000 0x0 0x0
0xffffcb8000007380 0045 00000000 0x0 0x0
0xffffcb8000007400 0045 00000000 0x0 0x0
0xffffcb8000007480 0045 00000000 0x0 0x0
0xffffcb8000007500 0045 00000000 0x0 0x0
0xffffcb8000007580 0045 00000000 0x0 0x0
0xffffcb8000007600 0045 00000000 0x0 0x0
0xffffcb8000007680 0041 00000000 0x0 0x0
0xffffcb8000007700 0041 00000000 0x0 0x0
0xffffcb8000007780 0041 00000000 0x0 0x0
0xffffcb8000007800 0041 00000000 0x0 0x0
0xffffcb8000007880 0045 00000000 0x0 0x0
0xffffcb8000007900 0045 00000000 0x0 0x0
0xffffcb8000007980 0041 00000000 0x0 0x0
0xffffcb8000007a00 0041 00000000 0x0 0x0
0xffffcb8000007a80 0041 00000000 0x0 0x0
0xffffcb8000007b00 0041 00000000 0x0 0x0
0xffffcb8000007b80 0041 00000000 0x0 0x0
0xffffcb8000007c00 0041 00000000 0x0 0x0
0xffffcb8000007c80 0041 00000000 0x0 0x0
0xffffcb8000007d00 0041 00000000 0x0 0x0
0xffffcb8000007d80 0041 00000000 0x0 0x0
0xffffcb8000007e00 0041 00000000 0x0 0x0
0xffffcb8000007e80 0041 00000000 0x0 0x0
0xffffcb8000007f00 0041 00000000 0x0 0x0
0xffffcb8000007f80 0041 00000000 0x0 0x0
0xffffcb8000008000 0041 00000000 0x0 0x0
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0xffffcb8000016000 0041 00000000 0x0 0x0
0xffffcb8000016080 0041 00000000 0x0 0x0
0xffffcb8000016100 0001 00000000 0x0 0x0
0xffffcb8000016180 0001 00000000 0x0 0x0
0xffffcb8000016200 0001 00000000 0x0 0x0
0xffffcb8000016280 0001 00000000 0x0 0x0
0xffffcb8000016300 0001 00000000 0x0 0x0
0xffffcb8000016380 0001 00000000 0x0 0x0
0xffffcb8000016400 0001 00000000 0x0 0x0
0xffffcb8000016480 0001 00000000 0x0 0x0
0xffffcb8000016500 0001 00000000 0x0 0x0
0xffffcb8000016580 0001 00000000 0x0 0x0
0xffffcb8000016600 0001 00000000 0x0 0x0
0xffffcb8000016680 0001 00000000 0x0 0x0
0xffffcb8000016700 0001 00000000 0x0 0x0
0xffffcb8000016780 0001 00000000 0x0 0x0
0xffffcb8000016800 0001 00000000 0x0 0x0
0xffffcb8000016880 0001 00000000 0x0 0x0
0xffffcb8000016900 0001 00000000 0x0 0x0
0xffffcb8000016980 0001 00000000 0x0 0x0
0xffffcb8000016a00 0001 00000000 0x0 0x0
0xffffcb8000016a80 0001 00000000 0x0 0x0
0xffffcb8000016b00 0001 00000000 0x0 0x0
0xffffcb8000016b80 0001 00000000 0x0 0x0
0xffffcb8000016c00 0001 00000000 0x0 0x0
0xffffcb8000016c80 0001 00000000 0x0 0x0
0xffffcb8000016d00 0001 00000000 0x0 0x0
0xffffcb8000016d80 0001 00000000 0x0 0x0
0xffffcb8000016e00 0001 00000000 0x0 0x0
0xffffcb8000016e80 0001 00000000 0x0 0x0
0xffffcb8000016f00 0001 00000000 0x0 0x0
0xffffcb8000016f80 0001 00000000 0x0 0x0
0xffffcb8000017000 0001 00000000 0x0 0x0
0xffffcb8000017080 0001 00000000 0x0 0x0
0xffffcb8000017100 0001 00000000 0x0 0x0
0xffffcb8000017180 0001 00000000 0x0 0x0
0xffffcb8000017200 0001 00000000 0x0 0x0
0xffffcb8000017280 0001 00000000 0x0 0x0
0xffffcb8000017300 0001 00000000 0x0 0x0
0xffffcb8000017380 0001 00000000 0x0 0x0
0xffffcb8000017400 0001 00000000 0x0 0x0
0xffffcb8000017480 0001 00000000 0x0 0x0
0xffffcb8000017500 0001 00000000 0x0 0x0
0xffffcb8000017580 0001 00000000 0x0 0x0
0xffffcb8000017600 0001 00000000 0x0 0x0
0xffffcb8000017680 0001 00000000 0x0 0x0
0xffffcb8000017700 0001 00000000 0x0 0x0
0xffffcb8000017780 0001 00000000 0x0 0x0
0xffffcb8000017800 0001 00000000 0x0 0x0
0xffffcb8000017880 0001 00000000 0x0 0x0
0xffffcb8000017900 0001 00000000 0x0 0x0
0xffffcb8000017980 0001 00000000 0x0 0x0
0xffffcb8000017a00 0001 00000000 0x0 0x0
0xffffcb8000017a80 0001 00000000 0x0 0x0
0xffffcb8000017b00 0001 00000000 0x0 0x0
0xffffcb8000017b80 0001 00000000 0x0 0x0
0xffffcb8000017c00 0041 00000000 0x0 0x0
0xffffcb8000017c80 0041 00000000 0x0 0x0
0xffffcb8000017d00 0041 00000000 0x0 0x0
0xffffcb8000017d80 0041 00000000 0x0 0x0
0xffffcb8000017e00 0041 00000000 0x0 0x0
0xffffcb8000017e80 0041 00000000 0x0 0x0
0xffffcb8000017f00 0041 00000000 0x0 0x0
0xffffcb8000017f80 0041 00000000 0x0 0x0
0xffffcb8000018000 0041 00000000 0x0 0x0
0xffffcb8000018080 0041 00000000 0x0 0x0
0xffffcb8000018100 0041 00000000 0x0 0x0
0xffffcb8000018180 0041 00000000 0x0 0x0
0xffffcb8000018200 0041 00000000 0x0 0x0
0xffffcb8000018280 0041 00000000 0x0 0x0
0xffffcb8000018300 0041 00000000 0x0 0x0
0xffffcb8000018380 0041 00000000 0x0 0x0
0xffffcb8000018400 0041 00000000 0x0 0x0
0xffffcb8000018480 0041 00000000 0x0 0x0
0xffffcb8000018500 0041 00000000 0x0 0x0
0xffffcb8000018580 0041 00000000 0x0 0x0
0xffffcb8000018600 0041 00000000 0x0 0x0
0xffffcb8000018680 0041 00000000 0x0 0x0
0xffffcb8000018700 0041 00000000 0x0 0x0
0xffffcb8000018780 0041 00000000 0x0 0x0
0xffffcb8000018800 0041 00000000 0x0 0x0
0xffffcb8000018880 0041 00000000 0x0 0x0
0xffffcb8000018900 0041 00000000 0x0 0x0
0xffffcb8000018980 0041 00000000 0x0 0x0
0xffffcb8000018a00 0041 00000000 0x0 0x0
0xffffcb8000018a80 0041 00000000 0x0 0x0
0xffffcb8000018b00 0041 00000000 0x0 0x0
0xffffcb8000018b80 0041 00000000 0x0 0x0
0xffffcb8000018c00 0041 00000000 0x0 0x0
0xffffcb8000018c80 0041 00000000 0x0 0x0
0xffffcb8000018d00 0041 00000000 0x0 0x0
0xffffcb8000018d80 0041 00000000 0x0 0x0
0xffffcb8000018e00 0041 00000000 0x0 0x0
0xffffcb8000018e80 0041 00000000 0x0 0x0
0xffffcb8000018f00 0041 00000000 0x0 0x0
0xffffcb8000018f80 0041 00000000 0x0 0x0
0xffffcb8000019000 0041 00000000 0x0 0x0
0xffffcb8000019080 0041 00000000 0x0 0x0
0xffffcb8000019100 0001 00000000 0x0 0x0
0xffffcb8000019180 0001 00000000 0x0 0x0
0xffffcb8000019200 0001 00000000 0x0 0x0
0xffffcb8000019280 0001 00000000 0x0 0x0
0xffffcb8000019300 0001 00000000 0x0 0x0
0xffffcb8000019380 0001 00000000 0x0 0x0
0xffffcb8000019400 0001 00000000 0x0 0x0
0xffffcb8000019480 0001 00000000 0x0 0x0
0xffffcb8000019500 0001 00000000 0x0 0x0
0xffffcb8000019580 0001 00000000 0x0 0x0
0xffffcb8000019600 0001 00000000 0x0 0x0
0xffffcb8000019680 0001 00000000 0x0 0x0
0xffffcb8000019700 0001 00000000 0x0 0x0
0xffffcb8000019780 0001 00000000 0x0 0x0
0xffffcb8000019800 0001 00000000 0x0 0x0
0xffffcb8000019880 0001 00000000 0x0 0x0
0xffffcb8000019900 0001 00000000 0x0 0x0
0xffffcb8000019980 0001 00000000 0x0 0x0
0xffffcb8000019a00 0001 00000000 0x0 0x0
0xffffcb8000019a80 0001 00000000 0x0 0x0
0xffffcb8000019b00 0001 00000000 0x0 0x0
0xffffcb8000019b80 0001 00000000 0x0 0x0
0xffffcb8000019c00 0001 00000000 0x0 0x0
0xffffcb8000019c80 0001 00000000 0x0 0x0
0xffffcb8000019d00 0001 00000000 0x0 0x0
0xffffcb8000019d80 0001 00000000 0x0 0x0
0xffffcb8000019e00 0001 00000000 0x0 0x0
0xffffcb8000019e80 0001 00000000 0x0 0x0
0xffffcb8000019f00 0001 00000000 0x0 0x0
0xffffcb8000019f80 0001 00000000 0x0 0x0
0xffffcb800001a000 0001 00000000 0x0 0x0
0xffffcb800001a080 0001 00000000 0x0 0x0
0xffffcb800001a100 0001 00000000 0x0 0x0
0xffffcb800001a180 0001 00000000 0x0 0x0
0xffffcb800001a200 0001 00000000 0x0 0x0
0xffffcb800001a280 0001 00000000 0x0 0x0
0xffffcb800001a300 0001 00000000 0x0 0x0
0xffffcb800001a380 0001 00000000 0x0 0x0
0xffffcb800001a400 0001 00000000 0x0 0x0
0xffffcb800001a480 0001 00000000 0x0 0x0
0xffffcb800001a500 0001 00000000 0x0 0x0
0xffffcb800001a580 0001 00000000 0x0 0x0
0xffffcb800001a600 0001 00000000 0x0 0x0
0xffffcb800001a680 0001 00000000 0x0 0x0
0xffffcb800001a700 0001 00000000 0x0 0x0
0xffffcb800001a780 0001 00000000 0x0 0x0
0xffffcb800001a800 0001 00000000 0x0 0x0
0xffffcb800001a880 0001 00000000 0x0 0x0
0xffffcb800001a900 0001 00000000 0x0 0x0
0xffffcb800001a980 0001 00000000 0x0 0x0
0xffffcb800001aa00 0001 00000000 0x0 0x0
0xffffcb800001aa80 0001 00000000 0x0 0x0
0xffffcb800001ab00 0001

---
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syzbot

unread,
Apr 24, 2023, 10:28:50 AM4/24/23
to syzkaller-...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
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