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: 1746 Comm: syz-executor.0 Not tainted 5.4.61-syzkaller-00823-g34364883b1f7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:file_tty drivers/tty/tty_io.c:181 [inline]
RIP: 0010:__tty_fasync drivers/tty/tty_io.c:2120 [inline]
RIP: 0010:tty_release+0xf0/0x1100 drivers/tty/tty_io.c:1664
Code: 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 f7 e8 c4 15 34 ff 49 8b 1e 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 a2 15 34 ff 4c 89 74 24 18 48 8b 2b
RSP: 0018:ffff8881d670fda0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000005401 R08: ffffffff823c3e0c R09: ffffed10391f4fa1
R10: ffffed10391f4fa1 R11: 0000000000000000 R12: ffff8881dab00000
R13: 1ffff1103aed1f59 R14: ffff8881d768fac8 R15: ffff8881d768fa00
FS:  00007f2d76af5700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005563ed810a00 CR3: 00000001c7cfa004 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __fput+0x27d/0x6c0 fs/file_table.c:280
 task_work_run+0x176/0x1a0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:163 [inline]
 prepare_exit_to_usermode+0x286/0x2e0 arch/x86/entry/common.c:194
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5b9
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:00007f2d76af4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9
RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9
RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000040 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffda2304cdf R14: 00007f2d76af59c0 R15: 000000000118cf4c
Modules linked in:
---[ end trace fce2fc8c1ebaf6e5 ]---
RIP: 0010:file_tty drivers/tty/tty_io.c:181 [inline]
RIP: 0010:__tty_fasync drivers/tty/tty_io.c:2120 [inline]
RIP: 0010:tty_release+0xf0/0x1100 drivers/tty/tty_io.c:1664
Code: 00 00 00 fc ff df 41 80 7c 05 00 00 74 08 4c 89 f7 e8 c4 15 34 ff 49 8b 1e 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 a2 15 34 ff 4c 89 74 24 18 48 8b 2b
RSP: 0018:ffff8881d670fda0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000005401 R08: ffffffff823c3e0c R09: ffffed10391f4fa1
R10: ffffed10391f4fa1 R11: 0000000000000000 R12: ffff8881dab00000
R13: 1ffff1103aed1f59 R14: ffff8881d768fac8 R15: ffff8881d768fa00
FS:  00007f2d76af5700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f33180390e8 CR3: 00000001c7cfa004 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400