general protection fault in tcp_timeout_obj_to_nlattr
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syzbot
Apr 12, 2019, 6:44:10 PM4/12/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=113d1edd200000
kernel config: https://syzkaller.appspot.com/x/.config?x=c95a88291f095edd
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6773e0...@syzkaller.appspotmail.com
netlink: 'syz-executor.1': attribute type 2 has an invalid length.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 27779 Comm: syz-executor.1 Not tainted 4.19.34 #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880809473d0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90008070000
RDX: 00000000000178a8 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff888080947460 R08: ffff888074b76480 R09: ffff8880a92e4e28
R10: ffffed101525c9c4 R11: ffff8880a92e4e20 R12: ffff8880a923b180
R13: ffff888080947438 R14: dffffc0000000000 R15: 1ffff11010128e7b
FS: 00007fe9abe19700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000002235040 CR3: 000000009f6c6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424
[inline]
cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471
nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228
netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454
nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xdd/0x130 net/socket.c:632
___sys_sendmsg+0x806/0x930 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe9abe18c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29
RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe9abe196d4
R13: 00000000004c638d R14: 00000000004daae0 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop4' (000000009479100b): kobject_uevent_env
---[ end trace 087696d28ff024e1 ]---
kobject: 'loop4' (000000009479100b): fill_kobj_path: path
= '/devices/virtual/block/loop4'
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880809473d0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90008070000
RDX: 00000000000178a8 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff888080947460 R08: ffff888074b76480 R09: ffff8880a92e4e28
R10: ffffed101525c9c4 R11: ffff8880a92e4e20 R12: ffff8880a923b180
R13: ffff888080947438 R14: dffffc0000000000 R15: 1ffff11010128e7b
FS: 00007fe9abe19700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007111b4 CR3: 000000009f6c6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following crash on:
HEAD commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=113d1edd200000
kernel config: https://syzkaller.appspot.com/x/.config?x=c95a88291f095edd
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
Unfortunately, I don't have any reproducer for this crash yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6773e0...@syzkaller.appspotmail.com
netlink: 'syz-executor.1': attribute type 2 has an invalid length.
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 27779 Comm: syz-executor.1 Not tainted 4.19.34 #2
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880809473d0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90008070000
RDX: 00000000000178a8 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff888080947460 R08: ffff888074b76480 R09: ffff8880a92e4e28
R10: ffffed101525c9c4 R11: ffff8880a92e4e20 R12: ffff8880a923b180
R13: ffff888080947438 R14: dffffc0000000000 R15: 1ffff11010128e7b
FS: 00007fe9abe19700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000002235040 CR3: 000000009f6c6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424
[inline]
cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471
nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228
netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454
nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xdd/0x130 net/socket.c:632
___sys_sendmsg+0x806/0x930 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458c29
Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fe9abe18c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458c29
RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe9abe196d4
R13: 00000000004c638d R14: 00000000004daae0 R15: 00000000ffffffff
Modules linked in:
kobject: 'loop4' (000000009479100b): kobject_uevent_env
---[ end trace 087696d28ff024e1 ]---
kobject: 'loop4' (000000009479100b): fill_kobj_path: path
= '/devices/virtual/block/loop4'
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff8880809473d0 EFLAGS: 00010247
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc90008070000
RDX: 00000000000178a8 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff888080947460 R08: ffff888074b76480 R09: ffff8880a92e4e28
R10: ffffed101525c9c4 R11: ffff8880a92e4e20 R12: ffff8880a923b180
R13: ffff888080947438 R14: dffffc0000000000 R15: 1ffff11010128e7b
FS: 00007fe9abe19700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000007111b4 CR3: 000000009f6c6000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
---
This bug 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 bug report. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Apr 13, 2019, 12:41:10 PM4/13/19
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15fddb97200000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10eeda2d200000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6773e0...@syzkaller.appspotmail.com
netlink: 'syz-executor364': attribute type 2 has an invalid length.
audit: type=1400 audit(1555173384.554:38): avc: denied { write } for
pid=7895 comm="syz-executor364"
scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023
tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023
tclass=netlink_netfilter_socket permissive=1
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b
RDX: 0000000000000000 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff88808028f460 R08: ffff8880850b0140 R09: ffff88809c37c0a8
R10: ffffed101386f814 R11: ffff88809c37c0a0 R12: ffff8880a58a3200
R13: ffff88808028f438 R14: dffffc0000000000 R15: 1ffff11010051e7b
FS: 0000000000be6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7
RSP: 002b:00007ffc579de818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401e9
RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a70
R13: 0000000000401b00 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace f15cc003973a1216 ]---
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b
RDX: 0000000000000000 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff88808028f460 R08: ffff8880850b0140 R09: ffff88809c37c0a8
R10: ffffed101386f814 R11: ffff88809c37c0a0 R12: ffff8880a58a3200
R13: ffff88808028f438 R14: dffffc0000000000 R15: 1ffff11010051e7b
FS: 0000000000be6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
HEAD commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=c95a88291f095edd
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16be5fc3200000
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10eeda2d200000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6773e0...@syzkaller.appspotmail.com
audit: type=1400 audit(1555173384.554:38): avc: denied { write } for
pid=7895 comm="syz-executor364"
scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023
tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023
tclass=netlink_netfilter_socket permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7895 Comm: syz-executor364 Not tainted 4.19.34 #2
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff88808028f3d0 EFLAGS: 00010247
Google 01/01/2011
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b
RDX: 0000000000000000 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff88808028f460 R08: ffff8880850b0140 R09: ffff88809c37c0a8
R10: ffffed101386f814 R11: ffff88809c37c0a0 R12: ffff8880a58a3200
R13: ffff88808028f438 R14: dffffc0000000000 R15: 1ffff11010051e7b
FS: 0000000000be6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000099f1f000 CR4: 00000000001406e0
Call Trace:
cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424
[inline]
cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471
nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228
netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454
nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xdd/0x130 net/socket.c:632
___sys_sendmsg+0x806/0x930 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4401e9
cttimeout_default_fill_info net/netfilter/nfnetlink_cttimeout.c:424
[inline]
cttimeout_default_get+0x69a/0xa80 net/netfilter/nfnetlink_cttimeout.c:471
nfnetlink_rcv_msg+0xd12/0xfe0 net/netfilter/nfnetlink.c:228
netlink_rcv_skb+0x180/0x460 net/netlink/af_netlink.c:2454
nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560
netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
netlink_unicast+0x53c/0x720 net/netlink/af_netlink.c:1343
netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:622 [inline]
sock_sendmsg+0xdd/0x130 net/socket.c:632
___sys_sendmsg+0x806/0x930 net/socket.c:2115
__sys_sendmsg+0x105/0x1d0 net/socket.c:2153
__do_sys_sendmsg net/socket.c:2162 [inline]
__se_sys_sendmsg net/socket.c:2160 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160
do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffc579de818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401e9
RDX: 0000000000000000 RSI: 0000000020dddfc8 RDI: 0000000000000003
RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a70
R13: 0000000000401b00 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace f15cc003973a1216 ]---
RIP: 0010:tcp_timeout_obj_to_nlattr+0x7b/0x650
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RSP: 0018:ffff88808028f3d0 EFLAGS: 00010247
net/netfilter/nf_conntrack_proto_tcp.c:1386
Code: f1 f1 f1 f1 c7 40 04 04 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45
d0 31 c0 e8 90 24 d5 fb 48 8d 7b 04 48 89 f8 48 c1 e8 03 <42> 0f b6 14 30
48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8599425b
RDX: 0000000000000000 RSI: ffffffff859612b0 RDI: 0000000000000004
RBP: ffff88808028f460 R08: ffff8880850b0140 R09: ffff88809c37c0a8
R10: ffffed101386f814 R11: ffff88809c37c0a0 R12: ffff8880a58a3200
R13: ffff88808028f438 R14: dffffc0000000000 R15: 1ffff11010051e7b
FS: 0000000000be6880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffff600400 CR3: 0000000099f1f000 CR4: 00000000001406e0
syzbot
Nov 27, 2019, 7:55:01 PM11/27/19
to syzkaller...@googlegroups.com
syzbot suspects this bug was fixed by commit:
commit ab69a230421065b48ef93d3e6daf332e71c931dc
Author: David S. Miller <da...@davemloft.net>
Date: Fri May 17 19:15:05 2019 +0000
Revert "tipc: fix modprobe tipc failed after switch order of device
registration"
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15080032e00000
start commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
#syz fix: Revert "tipc: fix modprobe tipc failed after switch order of
device registration"
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit ab69a230421065b48ef93d3e6daf332e71c931dc
Author: David S. Miller <da...@davemloft.net>
Date: Fri May 17 19:15:05 2019 +0000
Revert "tipc: fix modprobe tipc failed after switch order of device
registration"
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15080032e00000
start commit: 4d552acf Linux 4.19.34
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=c95a88291f095edd
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
dashboard link: https://syzkaller.appspot.com/bug?extid=6773e0aabf7d2870258f
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16be5fc3200000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10eeda2d200000
If the result looks correct, please mark the bug fixed by replying with:
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10eeda2d200000
#syz fix: Revert "tipc: fix modprobe tipc failed after switch order of
device registration"
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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