general protection fault in dccp_v6_connect
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syzbot
May 31, 2019, 1:48:05 AM5/31/19
to syzkaller-upst...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 9b3c520e Merge branch 'qed-Improve-performance-on-100G-lin..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1218d0baa00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=eed4fd4e8042aa189784
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
CC: [da...@davemloft.net dc...@vger.kernel.org
ger...@erg.abdn.ac.uk linux-...@vger.kernel.org net...@vger.kernel.org
net...@vger.kernel.org]
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+eed4fd...@syzkaller.appspotmail.com
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3567 Comm: syz-executor.1 Not tainted 5.2.0-rc1+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline]
RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline]
RIP: 0010:dccp_v6_connect+0x9d5/0x1990 net/dccp/ipv6.c:933
Code: 89 ee e8 9e 86 e6 fa 45 84 ed 0f 84 2f 0a 00 00 e8 50 85 e6 fa 49 8d
7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f
85 89 0e 00 00 4d 8b 6e 70 e8 68 6c d3 fa 31 ff 41
RSP: 0018:ffff8880a780fad0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888060b32180 RCX: ffffc90005b95000
RDX: 000000000000002d RSI: ffffffff868a1f20 RDI: 000000000000016f
RBP: ffff8880a780fc30 R08: ffff8880612ac380 R09: ffffed1015d06be0
R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff888060b32a48
R13: 0000000000000001 R14: 00000000000000ff R15: ffff8880a780fb98
FS: 00007ffa79e26700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe105e0e38 CR3: 000000009a797000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__inet_stream_connect+0x834/0xe90 net/ipv4/af_inet.c:659
inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:723
__sys_connect+0x264/0x330 net/socket.c:1840
__do_sys_connect net/socket.c:1851 [inline]
__se_sys_connect net/socket.c:1848 [inline]
__x64_sys_connect+0x73/0xb0 net/socket.c:1848
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffa79e25c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 000000000000001c RSI: 0000000020419000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa79e266d4
R13: 00000000004bf74d R14: 00000000004d0c18 R15: 00000000ffffffff
Modules linked in:
---[ end trace a67d6ac354b94deb ]---
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline]
RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline]
RIP: 0010:dccp_v6_connect+0x9d5/0x1990 net/dccp/ipv6.c:933
Code: 89 ee e8 9e 86 e6 fa 45 84 ed 0f 84 2f 0a 00 00 e8 50 85 e6 fa 49 8d
7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f
85 89 0e 00 00 4d 8b 6e 70 e8 68 6c d3 fa 31 ff 41
RSP: 0018:ffff8880a780fad0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888060b32180 RCX: ffffc90005b95000
RDX: 000000000000002d RSI: ffffffff868a1f20 RDI: 000000000000016f
RBP: ffff8880a780fc30 R08: ffff8880612ac380 R09: ffffed1015d06be0
R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff888060b32a48
R13: 0000000000000001 R14: 00000000000000ff R15: ffff8880a780fb98
FS: 00007ffa79e26700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c426b0b000 CR3: 000000009a797000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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: 9b3c520e Merge branch 'qed-Improve-performance-on-100G-lin..
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=1218d0baa00000
kernel config: https://syzkaller.appspot.com/x/.config?x=fc045131472947d7
dashboard link: https://syzkaller.appspot.com/bug?extid=eed4fd4e8042aa189784
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
CC: [da...@davemloft.net dc...@vger.kernel.org
ger...@erg.abdn.ac.uk linux-...@vger.kernel.org net...@vger.kernel.org
net...@vger.kernel.org]
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+eed4fd...@syzkaller.appspotmail.com
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3567 Comm: syz-executor.1 Not tainted 5.2.0-rc1+ #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline]
RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline]
RIP: 0010:dccp_v6_connect+0x9d5/0x1990 net/dccp/ipv6.c:933
Code: 89 ee e8 9e 86 e6 fa 45 84 ed 0f 84 2f 0a 00 00 e8 50 85 e6 fa 49 8d
7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f
85 89 0e 00 00 4d 8b 6e 70 e8 68 6c d3 fa 31 ff 41
RSP: 0018:ffff8880a780fad0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888060b32180 RCX: ffffc90005b95000
RDX: 000000000000002d RSI: ffffffff868a1f20 RDI: 000000000000016f
RBP: ffff8880a780fc30 R08: ffff8880612ac380 R09: ffffed1015d06be0
R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff888060b32a48
R13: 0000000000000001 R14: 00000000000000ff R15: ffff8880a780fb98
FS: 00007ffa79e26700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe105e0e38 CR3: 000000009a797000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__inet_stream_connect+0x834/0xe90 net/ipv4/af_inet.c:659
inet_stream_connect+0x58/0xa0 net/ipv4/af_inet.c:723
__sys_connect+0x264/0x330 net/socket.c:1840
__do_sys_connect net/socket.c:1851 [inline]
__se_sys_connect net/socket.c:1848 [inline]
__x64_sys_connect+0x73/0xb0 net/socket.c:1848
do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffa79e25c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 000000000000001c RSI: 0000000020419000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffa79e266d4
R13: 00000000004bf74d R14: 00000000004d0c18 R15: 00000000ffffffff
Modules linked in:
---[ end trace a67d6ac354b94deb ]---
RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline]
RIP: 0010:rt6_get_cookie include/net/ip6_fib.h:264 [inline]
RIP: 0010:ip6_dst_store include/net/ip6_route.h:213 [inline]
RIP: 0010:dccp_v6_connect+0x9d5/0x1990 net/dccp/ipv6.c:933
Code: 89 ee e8 9e 86 e6 fa 45 84 ed 0f 84 2f 0a 00 00 e8 50 85 e6 fa 49 8d
7e 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f
85 89 0e 00 00 4d 8b 6e 70 e8 68 6c d3 fa 31 ff 41
RSP: 0018:ffff8880a780fad0 EFLAGS: 00010207
RAX: dffffc0000000000 RBX: ffff888060b32180 RCX: ffffc90005b95000
RDX: 000000000000002d RSI: ffffffff868a1f20 RDI: 000000000000016f
RBP: ffff8880a780fc30 R08: ffff8880612ac380 R09: ffffed1015d06be0
R10: ffffed1015d06bdf R11: ffff8880ae835efb R12: ffff888060b32a48
R13: 0000000000000001 R14: 00000000000000ff R15: ffff8880a780fb98
FS: 00007ffa79e26700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c426b0b000 CR3: 000000009a797000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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
Oct 25, 2019, 4:46:07 AM10/25/19
to syzkaller-upst...@googlegroups.com
Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.
Crashes did not happen for a while, no reproducer and no activity.
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