kernel BUG at fs/inode.c:LINE!
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syzbot
Aug 2, 2020, 11:56:23 PM8/2/20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 13af6c74 Linux 4.19.136
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13a5c0dc900000
kernel config: https://syzkaller.appspot.com/x/.config?x=5b7578d3b5457a49
dashboard link: https://syzkaller.appspot.com/bug?extid=de1acd8124232a3afac4
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de1acd...@syzkaller.appspotmail.com
------------[ cut here ]------------
kernel BUG at fs/inode.c:519!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18063 Comm: syz-executor.1 Not tainted 4.19.136-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:clear_inode+0x19e/0x1e0 fs/inode.c:519
Code: 5c c3 e8 55 4d b9 ff 0f 0b e8 4e 4d b9 ff 0f 0b e8 47 4d b9 ff 0f 0b e8 40 4d b9 ff 0f 0b e8 39 4d b9 ff 0f 0b e8 32 4d b9 ff <0f> 0b e8 8b 6a ef ff e9 93 fe ff ff e8 81 6a ef ff e9 4a ff ff ff
RSP: 0018:ffff888000a77c08 EFLAGS: 00010293
RAX: ffff888000a66100 RBX: ffff888000c000c0 RCX: ffffffff81b0619d
RDX: 0000000000000000 RSI: ffffffff81b0620e RDI: 0000000000000007
RBP: ffff888000c00278 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000020
R13: ffff888000c000e8 R14: ffffffff87b968e0 R15: ffff88821b7c2eb8
FS: 0000000001da5940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ca8660 CR3: 000000000098c000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
evict+0x5d3/0x760 fs/inode.c:562
iput_final fs/inode.c:1555 [inline]
iput+0x4f1/0x860 fs/inode.c:1581
dentry_unlink_inode+0x265/0x320 fs/dcache.c:374
d_delete+0x210/0x280 fs/dcache.c:2370
__debugfs_remove_file fs/debugfs/inode.c:628 [inline]
__debugfs_remove.part.0+0x10b/0x1b0 fs/debugfs/inode.c:658
__debugfs_remove include/linux/dcache.h:322 [inline]
debugfs_remove_recursive fs/debugfs/inode.c:740 [inline]
debugfs_remove_recursive+0x1ba/0x4c0 fs/debugfs/inode.c:709
kvm_destroy_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:614 [inline]
kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:789 [inline]
kvm_put_kvm+0xfb/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:831
kvm_vcpu_release+0x77/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2639
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x416791
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fffbe897020 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000416791
RDX: 0000000000000000 RSI: 000000000000149d RDI: 0000000000000005
RBP: 0000000000000001 R08: 00000000542a549d R09: 00000000542a54a1
R10: 00007fffbe897110 R11: 0000000000000293 R12: 0000000000792688
R13: 0000000000059f3c R14: ffffffffffffffff R15: 000000000078bf0c
Modules linked in:
---[ end trace d78c1a92d3233b1b ]---
RIP: 0010:clear_inode+0x19e/0x1e0 fs/inode.c:519
Code: 5c c3 e8 55 4d b9 ff 0f 0b e8 4e 4d b9 ff 0f 0b e8 47 4d b9 ff 0f 0b e8 40 4d b9 ff 0f 0b e8 39 4d b9 ff 0f 0b e8 32 4d b9 ff <0f> 0b e8 8b 6a ef ff e9 93 fe ff ff e8 81 6a ef ff e9 4a ff ff ff
RSP: 0018:ffff888000a77c08 EFLAGS: 00010293
RAX: ffff888000a66100 RBX: ffff888000c000c0 RCX: ffffffff81b0619d
RDX: 0000000000000000 RSI: ffffffff81b0620e RDI: 0000000000000007
RBP: ffff888000c00278 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000020
R13: ffff888000c000e8 R14: ffffffff87b968e0 R15: ffff88821b7c2eb8
FS: 0000000001da5940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000742138 CR3: 000000000098c000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot found the following issue on:
HEAD commit: 13af6c74 Linux 4.19.136
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13a5c0dc900000
kernel config: https://syzkaller.appspot.com/x/.config?x=5b7578d3b5457a49
dashboard link: https://syzkaller.appspot.com/bug?extid=de1acd8124232a3afac4
compiler: gcc (GCC) 10.1.0-syz 20200507
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de1acd...@syzkaller.appspotmail.com
------------[ cut here ]------------
kernel BUG at fs/inode.c:519!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18063 Comm: syz-executor.1 Not tainted 4.19.136-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:clear_inode+0x19e/0x1e0 fs/inode.c:519
Code: 5c c3 e8 55 4d b9 ff 0f 0b e8 4e 4d b9 ff 0f 0b e8 47 4d b9 ff 0f 0b e8 40 4d b9 ff 0f 0b e8 39 4d b9 ff 0f 0b e8 32 4d b9 ff <0f> 0b e8 8b 6a ef ff e9 93 fe ff ff e8 81 6a ef ff e9 4a ff ff ff
RSP: 0018:ffff888000a77c08 EFLAGS: 00010293
RAX: ffff888000a66100 RBX: ffff888000c000c0 RCX: ffffffff81b0619d
RDX: 0000000000000000 RSI: ffffffff81b0620e RDI: 0000000000000007
RBP: ffff888000c00278 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000020
R13: ffff888000c000e8 R14: ffffffff87b968e0 R15: ffff88821b7c2eb8
FS: 0000000001da5940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000ca8660 CR3: 000000000098c000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
evict+0x5d3/0x760 fs/inode.c:562
iput_final fs/inode.c:1555 [inline]
iput+0x4f1/0x860 fs/inode.c:1581
dentry_unlink_inode+0x265/0x320 fs/dcache.c:374
d_delete+0x210/0x280 fs/dcache.c:2370
__debugfs_remove_file fs/debugfs/inode.c:628 [inline]
__debugfs_remove.part.0+0x10b/0x1b0 fs/debugfs/inode.c:658
__debugfs_remove include/linux/dcache.h:322 [inline]
debugfs_remove_recursive fs/debugfs/inode.c:740 [inline]
debugfs_remove_recursive+0x1ba/0x4c0 fs/debugfs/inode.c:709
kvm_destroy_vm_debugfs arch/x86/kvm/../../../virt/kvm/kvm_main.c:614 [inline]
kvm_destroy_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:789 [inline]
kvm_put_kvm+0xfb/0xc70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:831
kvm_vcpu_release+0x77/0xa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2639
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x416791
Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007fffbe897020 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000416791
RDX: 0000000000000000 RSI: 000000000000149d RDI: 0000000000000005
RBP: 0000000000000001 R08: 00000000542a549d R09: 00000000542a54a1
R10: 00007fffbe897110 R11: 0000000000000293 R12: 0000000000792688
R13: 0000000000059f3c R14: ffffffffffffffff R15: 000000000078bf0c
Modules linked in:
---[ end trace d78c1a92d3233b1b ]---
RIP: 0010:clear_inode+0x19e/0x1e0 fs/inode.c:519
Code: 5c c3 e8 55 4d b9 ff 0f 0b e8 4e 4d b9 ff 0f 0b e8 47 4d b9 ff 0f 0b e8 40 4d b9 ff 0f 0b e8 39 4d b9 ff 0f 0b e8 32 4d b9 ff <0f> 0b e8 8b 6a ef ff e9 93 fe ff ff e8 81 6a ef ff e9 4a ff ff ff
RSP: 0018:ffff888000a77c08 EFLAGS: 00010293
RAX: ffff888000a66100 RBX: ffff888000c000c0 RCX: ffffffff81b0619d
RDX: 0000000000000000 RSI: ffffffff81b0620e RDI: 0000000000000007
RBP: ffff888000c00278 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000020
R13: ffff888000c000e8 R14: ffffffff87b968e0 R15: ffff88821b7c2eb8
FS: 0000000001da5940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000742138 CR3: 000000000098c000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot
Sep 1, 2020, 7:29:15 AM9/1/20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: f6d5cb9e Linux 4.19.142
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13005271900000
kernel config: https://syzkaller.appspot.com/x/.config?x=30067df04d3254aa
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de1acd...@syzkaller.appspotmail.com
Bluetooth: hci0: command 0x041b tx timeout
Bluetooth: hci0: command 0x040f tx timeout
Bluetooth: hci0: command 0x0419 tx timeout
------------[ cut here ]------------
kernel BUG at fs/inode.c:1571!
Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 18 fd ff ff 48 8b 3c 24 e8 33 10 ef ff e9 0a fd ff ff e8 49 ef b8 ff <0f> 0b e8 42 ef b8 ff 48 89 ef e8 1a f7 ff ff 4c 89 f7 e8 12 c7 8c
RSP: 0018:ffff88808fc97da8 EFLAGS: 00010293
RAX: ffff88808e1da680 RBX: 0000000000000040 RCX: ffffffff81b0bb6e
RDX: 0000000000000000 RSI: ffffffff81b0c237 RDI: 0000000000000007
RBP: ffff88807c63a1b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88807c63a1a8 R14: ffffffff85afcc50 R15: ffff8880a94f2a20
FS: 00007fb3f510f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
sock_close+0x15/0x20 net/socket.c:1140
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb3f510ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffe38ff1b8f R14: 00007fb3f510f9c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace bed1a4a147cff8bd ]---
RIP: 0010:iput+0x727/0x860 fs/inode.c:1571
Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 18 fd ff ff 48 8b 3c 24 e8 33 10 ef ff e9 0a fd ff ff e8 49 ef b8 ff <0f> 0b e8 42 ef b8 ff 48 89 ef e8 1a f7 ff ff 4c 89 f7 e8 12 c7 8c
RSP: 0018:ffff88808fc97da8 EFLAGS: 00010293
RAX: ffff88808e1da680 RBX: 0000000000000040 RCX: ffffffff81b0bb6e
RDX: 0000000000000000 RSI: ffffffff81b0c237 RDI: 0000000000000007
RBP: ffff88807c63a1b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88807c63a1a8 R14: ffffffff85afcc50 R15: ffff8880a94f2a20
FS: 00007fb3f510f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
HEAD commit: f6d5cb9e Linux 4.19.142
git tree: linux-4.19.y
console output: https://syzkaller.appspot.com/x/log.txt?x=13005271900000
kernel config: https://syzkaller.appspot.com/x/.config?x=30067df04d3254aa
dashboard link: https://syzkaller.appspot.com/bug?extid=de1acd8124232a3afac4
compiler: gcc (GCC) 10.1.0-syz 20200507
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=174fea15900000
compiler: gcc (GCC) 10.1.0-syz 20200507
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+de1acd...@syzkaller.appspotmail.com
Bluetooth: hci0: command 0x040f tx timeout
Bluetooth: hci0: command 0x0419 tx timeout
------------[ cut here ]------------
kernel BUG at fs/inode.c:1571!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 12155 Comm: syz-executor.0 Not tainted 4.19.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:iput+0x727/0x860 fs/inode.c:1571
Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 18 fd ff ff 48 8b 3c 24 e8 33 10 ef ff e9 0a fd ff ff e8 49 ef b8 ff <0f> 0b e8 42 ef b8 ff 48 89 ef e8 1a f7 ff ff 4c 89 f7 e8 12 c7 8c
RSP: 0018:ffff88808fc97da8 EFLAGS: 00010293
RAX: ffff88808e1da680 RBX: 0000000000000040 RCX: ffffffff81b0bb6e
RDX: 0000000000000000 RSI: ffffffff81b0c237 RDI: 0000000000000007
RBP: ffff88807c63a1b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88807c63a1a8 R14: ffffffff85afcc50 R15: ffff8880a94f2a20
FS: 00007fb3f510f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016a8660 CR3: 000000008bf44000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__sock_release+0x226/0x2a0 net/socket.c:591
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
sock_close+0x15/0x20 net/socket.c:1140
__fput+0x2ce/0x890 fs/file_table.c:278
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45d5b9
task_work_run+0x148/0x1c0 kernel/task_work.c:113
tracehook_notify_resume include/linux/tracehook.h:193 [inline]
exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb3f510ec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9
RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffe38ff1b8f R14: 00007fb3f510f9c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace bed1a4a147cff8bd ]---
RIP: 0010:iput+0x727/0x860 fs/inode.c:1571
Code: b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 84 18 fd ff ff 48 8b 3c 24 e8 33 10 ef ff e9 0a fd ff ff e8 49 ef b8 ff <0f> 0b e8 42 ef b8 ff 48 89 ef e8 1a f7 ff ff 4c 89 f7 e8 12 c7 8c
RSP: 0018:ffff88808fc97da8 EFLAGS: 00010293
RAX: ffff88808e1da680 RBX: 0000000000000040 RCX: ffffffff81b0bb6e
RDX: 0000000000000000 RSI: ffffffff81b0c237 RDI: 0000000000000007
RBP: ffff88807c63a1b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88807c63a1a8 R14: ffffffff85afcc50 R15: ffff8880a94f2a20
FS: 00007fb3f510f700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000016a8660 CR3: 000000008bf44000 CR4: 00000000001406f0
syzbot
Oct 1, 2020, 3:50:06 PM10/1/20
to syzkaller...@googlegroups.com
syzbot suspects this issue was fixed by commit:
commit 37d933e8b41b83bb8278815e366aec5a542b7e31
Author: Al Viro <vi...@zeniv.linux.org.uk>
Date: Wed Sep 2 15:30:48 2020 +0000
fix regression in "epoll: Keep a reference on files added to the check list"
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13b87c4d900000
start commit: f6d5cb9e Linux 4.19.142
git tree: linux-4.19.y
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: fix regression in "epoll: Keep a reference on files added to the check list"
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit 37d933e8b41b83bb8278815e366aec5a542b7e31
Author: Al Viro <vi...@zeniv.linux.org.uk>
Date: Wed Sep 2 15:30:48 2020 +0000
fix regression in "epoll: Keep a reference on files added to the check list"
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13b87c4d900000
start commit: f6d5cb9e Linux 4.19.142
git tree: linux-4.19.y
kernel config: https://syzkaller.appspot.com/x/.config?x=30067df04d3254aa
dashboard link: https://syzkaller.appspot.com/bug?extid=de1acd8124232a3afac4
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=174fea15900000
dashboard link: https://syzkaller.appspot.com/bug?extid=de1acd8124232a3afac4
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: fix regression in "epoll: Keep a reference on files added to the check list"
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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