WARNING in get_signal
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syzbot
Jun 13, 2019, 8:31:07 AM6/13/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: 768292d0 Linux 4.19.50
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13bac056a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=51f16e11efb124be
dashboard link: https://syzkaller.appspot.com/bug?extid=eb89c8004eabb60d0d7c
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=174d4032a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+eb89c8...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
audit: type=1400 audit(1560425164.288:38): avc: denied { associate } for
pid=7902 comm="syz-executor.0" name="syz0"
scontext=unconfined_u:object_r:unlabeled_t:s0
tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
WARNING: CPU: 1 PID: 7915 at kernel/signal.c:2320 do_jobctl_trap
kernel/signal.c:2320 [inline]
WARNING: CPU: 1 PID: 7915 at kernel/signal.c:2320 get_signal+0x1bf9/0x1fc0
kernel/signal.c:2453
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7915 Comm: syz-executor.0 Not tainted 4.19.50 #22
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
panic+0x263/0x507 kernel/panic.c:185
__warn.cold+0x20/0x4a kernel/panic.c:540
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013
RIP: 0010:do_jobctl_trap kernel/signal.c:2320 [inline]
RIP: 0010:get_signal+0x1bf9/0x1fc0 kernel/signal.c:2453
Code: 84 db 0f 84 d5 e5 ff ff e8 f4 f4 27 00 31 ff e8 8d 8b 17 00 e9 c4 e5
ff ff e8 e3 f4 27 00 0f 0b e9 dd fa ff ff e8 d7 f4 27 00 <0f> 0b 41 bd 00
80 00 00 e9 7e f4 ff ff e8 75 58 5e 00 e9 5e e9 ff
RSP: 0018:ffff88807840fc30 EFLAGS: 00010093
RAX: ffff88807ed7a180 RBX: 0000000000000001 RCX: ffffffff81430684
RDX: 0000000000000000 RSI: ffffffff81431209 RDI: 0000000000000005
RBP: ffff88807840fce8 R08: ffff88807ed7a180 R09: ffffed1015349a42
R10: ffffed1015349a41 R11: ffff8880a9a4d20b R12: 0000000000000000
R13: 0000000000008000 R14: dffffc0000000000 R15: ffff88807ed7a180
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath+0x40a/0x4c0 arch/x86/entry/common.c:271
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:407
RIP: 0033:0x4592c9
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:00007f255d58bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f255d58c6d4
R13: 00000000004bf72a R14: 00000000004d0e18 R15: 00000000ffffffff
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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 can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
syzbot found the following crash on:
HEAD commit: 768292d0 Linux 4.19.50
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13bac056a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=51f16e11efb124be
dashboard link: https://syzkaller.appspot.com/bug?extid=eb89c8004eabb60d0d7c
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=174d4032a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+eb89c8...@syzkaller.appspotmail.com
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
audit: type=1400 audit(1560425164.288:38): avc: denied { associate } for
pid=7902 comm="syz-executor.0" name="syz0"
scontext=unconfined_u:object_r:unlabeled_t:s0
tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1
WARNING: CPU: 1 PID: 7915 at kernel/signal.c:2320 do_jobctl_trap
kernel/signal.c:2320 [inline]
WARNING: CPU: 1 PID: 7915 at kernel/signal.c:2320 get_signal+0x1bf9/0x1fc0
kernel/signal.c:2453
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7915 Comm: syz-executor.0 Not tainted 4.19.50 #22
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x172/0x1f0 lib/dump_stack.c:113
panic+0x263/0x507 kernel/panic.c:185
__warn.cold+0x20/0x4a kernel/panic.c:540
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1013
RIP: 0010:do_jobctl_trap kernel/signal.c:2320 [inline]
RIP: 0010:get_signal+0x1bf9/0x1fc0 kernel/signal.c:2453
Code: 84 db 0f 84 d5 e5 ff ff e8 f4 f4 27 00 31 ff e8 8d 8b 17 00 e9 c4 e5
ff ff e8 e3 f4 27 00 0f 0b e9 dd fa ff ff e8 d7 f4 27 00 <0f> 0b 41 bd 00
80 00 00 e9 7e f4 ff ff e8 75 58 5e 00 e9 5e e9 ff
RSP: 0018:ffff88807840fc30 EFLAGS: 00010093
RAX: ffff88807ed7a180 RBX: 0000000000000001 RCX: ffffffff81430684
RDX: 0000000000000000 RSI: ffffffff81431209 RDI: 0000000000000005
RBP: ffff88807840fce8 R08: ffff88807ed7a180 R09: ffffed1015349a42
R10: ffffed1015349a41 R11: ffff8880a9a4d20b R12: 0000000000000000
R13: 0000000000008000 R14: dffffc0000000000 R15: ffff88807ed7a180
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath+0x40a/0x4c0 arch/x86/entry/common.c:271
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:407
RIP: 0033:0x4592c9
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:00007f255d58bc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f255d58c6d4
R13: 00000000004bf72a R14: 00000000004d0e18 R15: 00000000ffffffff
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..
---
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 can test patches for this bug, for details see:
https://goo.gl/tpsmEJ#testing-patches
syzbot
Jun 22, 2019, 9:46:06 PM6/22/19
to syzkaller...@googlegroups.com
Hello,
syzbot found the following crash on:
HEAD commit: a5758c53 Linux 4.14.129
syzbot found the following crash on:
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10e9ac89a00000
kernel config: https://syzkaller.appspot.com/x/.config?x=9116f86b1594833c
dashboard link: https://syzkaller.appspot.com/bug?extid=439015f8184393926148
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10430c06a00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready
8021q: adding VLAN 0 to HW filter on device batadv0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7191 at kernel/signal.c:2156 do_jobctl_trap
kernel/signal.c:2156 [inline]
WARNING: CPU: 0 PID: 7191 at kernel/signal.c:2156 get_signal+0x18ed/0x1cd0
kernel/signal.c:2288
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 7191 Comm: syz-executor.0 Not tainted 4.14.129 #23
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
Google 01/01/2011
Call Trace:
dump_stack+0x138/0x19c lib/dump_stack.c:53
panic+0x1f2/0x426 kernel/panic.c:182
__warn.cold+0x2f/0x36 kernel/panic.c:546
report_bug+0x216/0x254 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:960
RIP: 0010:do_jobctl_trap kernel/signal.c:2156 [inline]
RIP: 0010:get_signal+0x18ed/0x1cd0 kernel/signal.c:2288
RSP: 0018:ffff88807395fc48 EFLAGS: 00010097
RAX: ffff8880a8da60c0 RBX: ffff8880a9689800 RCX: ffff8880a968989c
RDX: 0000000000000000 RSI: ffff8880a8da6940 RDI: ffff8880a9689898
RBP: ffff88807395fd00 R08: 0000000000006e8c R09: ffffffff88caf8a0
R10: ffff8880a8da6940 R11: ffff8880a8da60c0 R12: 0000000000000000
R13: 0000000000008000 R14: ffff88807395ff58 R15: dffffc0000000000
do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath+0x29e/0x330 arch/x86/entry/common.c:270
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:397
RIP: 0033:0x4592c9
RSP: 002b:00007f46019dac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f46019db6d4
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 000000000075bf20 R08: ffffffffffffffff R09: 0000000000000000
R13: 00000000004bf72a R14: 00000000004d0e18 R15: 00000000ffffffff
syzbot
Feb 18, 2020, 4:47:12 AM2/18/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 9b15f7fa Linux 4.19.104
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13cbd711e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=6515a92286073717
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e7ae0de00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+eb89c8...@syzkaller.appspotmail.com
audit: type=1400 audit(1582019041.644:36): avc: denied { map } for pid=8032 comm="syz-executor355" path="/root/syz-executor355131934" dev="sda1" ino=1426 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
WARNING: CPU: 1 PID: 8047 at kernel/signal.c:2329 do_jobctl_trap kernel/signal.c:2329 [inline]
WARNING: CPU: 1 PID: 8047 at kernel/signal.c:2329 get_signal+0x1bf9/0x1fc0 kernel/signal.c:2462
panic+0x26a/0x50e kernel/panic.c:186
__warn.cold+0x20/0x53 kernel/panic.c:541
RIP: 0010:do_jobctl_trap kernel/signal.c:2329 [inline]
RIP: 0010:get_signal+0x1bf9/0x1fc0 kernel/signal.c:2462
Code: 84 db 0f 84 d5 e5 ff ff e8 24 5d 28 00 31 ff e8 cd d2 17 00 e9 c4 e5 ff ff e8 13 5d 28 00 0f 0b e9 dd fa ff ff e8 07 5d 28 00 <0f> 0b 41 bd 00 80 00 00 e9 7e f4 ff ff e8 85 fa 5f 00 e9 5e e9 ff
RSP: 0018:ffff8880965cfc30 EFLAGS: 00010093
RAX: ffff8880943a2280 RBX: 0000000100000000 RCX: ffffffff81427434
RDX: 0000000000000000 RSI: ffffffff81427fb9 RDI: 0000000000000005
RBP: ffff8880965cfce8 R08: ffff8880943a2280 R09: ffffed10136b715a
R10: ffffed10136b7159 R11: ffff88809b5b8acb R12: 0000000000000000
R13: 0000000000008000 R14: dffffc0000000000 R15: ffff8880943a2280
Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fae630dfdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00000000006dbc28 RCX: 0000000000446749
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff74b7165f R14: 00007fae630e09c0 R15: 20c49ba5e353f7cf
HEAD commit: 9b15f7fa Linux 4.19.104
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13cbd711e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=6515a92286073717
dashboard link: https://syzkaller.appspot.com/bug?extid=eb89c8004eabb60d0d7c
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17115865e00000
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e7ae0de00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+eb89c8...@syzkaller.appspotmail.com
WARNING: CPU: 1 PID: 8047 at kernel/signal.c:2329 do_jobctl_trap kernel/signal.c:2329 [inline]
WARNING: CPU: 1 PID: 8047 at kernel/signal.c:2329 get_signal+0x1bf9/0x1fc0 kernel/signal.c:2462
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8047 Comm: syz-executor355 Not tainted 4.19.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x197/0x210 lib/dump_stack.c:118
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
panic+0x26a/0x50e kernel/panic.c:186
__warn.cold+0x20/0x53 kernel/panic.c:541
report_bug+0x263/0x2b0 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037
fixup_bug arch/x86/kernel/traps.c:178 [inline]
fixup_bug arch/x86/kernel/traps.c:173 [inline]
do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
RIP: 0010:do_jobctl_trap kernel/signal.c:2329 [inline]
RIP: 0010:get_signal+0x1bf9/0x1fc0 kernel/signal.c:2462
Code: 84 db 0f 84 d5 e5 ff ff e8 24 5d 28 00 31 ff e8 cd d2 17 00 e9 c4 e5 ff ff e8 13 5d 28 00 0f 0b e9 dd fa ff ff e8 07 5d 28 00 <0f> 0b 41 bd 00 80 00 00 e9 7e f4 ff ff e8 85 fa 5f 00 e9 5e e9 ff
RSP: 0018:ffff8880965cfc30 EFLAGS: 00010093
RAX: ffff8880943a2280 RBX: 0000000100000000 RCX: ffffffff81427434
RDX: 0000000000000000 RSI: ffffffff81427fb9 RDI: 0000000000000005
RBP: ffff8880965cfce8 R08: ffff8880943a2280 R09: ffffed10136b715a
R10: ffffed10136b7159 R11: ffff88809b5b8acb R12: 0000000000000000
R13: 0000000000008000 R14: dffffc0000000000 R15: ffff8880943a2280
do_signal+0x95/0x1960 arch/x86/kernel/signal.c:821
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath+0x40a/0x4c0 arch/x86/entry/common.c:271
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:407
RIP: 0033:0x446749
exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath+0x40a/0x4c0 arch/x86/entry/common.c:271
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:407
Code: e8 5c b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fae630dfdb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00000000006dbc28 RCX: 0000000000446749
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 00000000006dbc20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007fff74b7165f R14: 00007fae630e09c0 R15: 20c49ba5e353f7cf
syzbot
Feb 19, 2020, 4:36:11 PM2/19/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following crash on:
HEAD commit: 98db2bf2 Linux 4.14.171
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1102c109e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=365f8162d5a0794b
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=139cfdd9e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+439015...@syzkaller.appspotmail.com
audit: type=1400 audit(1582147938.457:36): avc: denied { map } for pid=7448 comm="syz-executor244" path="/root/syz-executor244851835" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7463 at kernel/signal.c:2165 do_jobctl_trap kernel/signal.c:2165 [inline]
WARNING: CPU: 1 PID: 7463 at kernel/signal.c:2165 get_signal+0x18ed/0x1cd0 kernel/signal.c:2297
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x2f/0x2f kernel/panic.c:547
RIP: 0010:do_jobctl_trap kernel/signal.c:2165 [inline]
RIP: 0010:get_signal+0x18ed/0x1cd0 kernel/signal.c:2297
RSP: 0018:ffff88808e5afc48 EFLAGS: 00010097
RAX: ffff888098950200 RBX: ffff888088761240 RCX: ffff8880887612dc
RDX: 0000000000000000 RSI: ffff888098950a80 RDI: ffff8880887612d8
RBP: ffff88808e5afd00 R08: 0000000000005aab R09: ffffffff8957bdd8
R10: ffff888098950a80 R11: ffff888098950200 R12: 0000000000000000
R13: 0000000000008000 R14: ffff88808e5aff58 R15: dffffc0000000000
RSP: 002b:00007fd19a9fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00000000006dbc28 RCX: 0000000000446749
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007ffdb491bddf R14: 00007fd19a9ff9c0 R15: 20c49ba5e353f7cf
HEAD commit: 98db2bf2 Linux 4.14.171
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1102c109e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=365f8162d5a0794b
dashboard link: https://syzkaller.appspot.com/bug?extid=439015f8184393926148
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15410931e00000
compiler: gcc (GCC) 9.0.0 20181231 (experimental)
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=139cfdd9e00000
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+439015...@syzkaller.appspotmail.com
------------[ cut here ]------------
WARNING: CPU: 1 PID: 7463 at kernel/signal.c:2165 do_jobctl_trap kernel/signal.c:2165 [inline]
WARNING: CPU: 1 PID: 7463 at kernel/signal.c:2165 get_signal+0x18ed/0x1cd0 kernel/signal.c:2297
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 7463 Comm: syz-executor244 Not tainted 4.14.171-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x142/0x197 lib/dump_stack.c:58
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
panic+0x1f9/0x42d kernel/panic.c:183
__warn.cold+0x2f/0x2f kernel/panic.c:547
report_bug+0x216/0x254 lib/bug.c:186
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
fixup_bug arch/x86/kernel/traps.c:177 [inline]
fixup_bug arch/x86/kernel/traps.c:172 [inline]
do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
RIP: 0010:do_jobctl_trap kernel/signal.c:2165 [inline]
RIP: 0010:get_signal+0x18ed/0x1cd0 kernel/signal.c:2297
RSP: 0018:ffff88808e5afc48 EFLAGS: 00010097
RAX: ffff888098950200 RBX: ffff888088761240 RCX: ffff8880887612dc
RDX: 0000000000000000 RSI: ffff888098950a80 RDI: ffff8880887612d8
RBP: ffff88808e5afd00 R08: 0000000000005aab R09: ffffffff8957bdd8
R10: ffff888098950a80 R11: ffff888098950200 R12: 0000000000000000
R13: 0000000000008000 R14: ffff88808e5aff58 R15: dffffc0000000000
do_signal+0x86/0x19a0 arch/x86/kernel/signal.c:814
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath+0x29e/0x330 arch/x86/entry/common.c:270
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:397
RIP: 0033:0x446749
exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:160
prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
syscall_return_slowpath+0x29e/0x330 arch/x86/entry/common.c:270
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:397
RSP: 002b:00007fd19a9fedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00000000006dbc28 RCX: 0000000000446749
RDX: 9999999999999999 RSI: 0000000000000000 RDI: 000000000a01ffff
RBP: 00000000006dbc20 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c
R13: 00007ffdb491bddf R14: 00007fd19a9ff9c0 R15: 20c49ba5e353f7cf
Shutting down cpus with NMI
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