------------[ cut here ]------------ kernel BUG at fs/inode.c:1668! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 28778 Comm: syz-executor.1 Not tainted 5.9.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:iput+0x64/0x70 fs/inode.c:1668 Code: ff 83 e3 40 48 89 de e8 3a d9 ad ff 48 85 db 75 14 e8 90 dc ad ff 48 89 ef e8 58 f7 ff ff 5b 5d e9 81 dc ad ff e8 7c dc ad ff <0f> 0b e8 05 f5 ed ff eb c5 0f 1f 00 41 56 41 55 41 54 55 48 89 fd RSP: 0018:ffffc9000a2a7e10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000040 RCX: ffffffff81c66276 RDX: ffff888083c6e140 RSI: ffffffff81c66294 RDI: 0000000000000007 RBP: ffff888085375600 R08: 0000000000000001 R09: ffff8880964780a3 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888085375560 R14: ffff888085375600 R15: ffff888087dc7330 FS: 00007f384b48d700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000744138 CR3: 000000009109a000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sock_release+0x20c/0x280 net/socket.c:608 sock_close+0x18/0x20 net/socket.c:1277 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:141 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:140 [inline] exit_to_user_mode_prepare+0x195/0x1c0 kernel/entry/common.c:167 syscall_exit_to_user_mode+0x59/0x2b0 kernel/entry/common.c:242 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:00007f384b48cc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 RDX: 0000000000000008 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 000000000118d028 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000040 R11: 0000000000000246 R12: 000000000118cfec R13: 00007fff377e471f R14: 00007f384b48d9c0 R15: 000000000118cfec Modules linked in: ---[ end trace efae61bcc307d4ab ]--- RIP: 0010:iput+0x64/0x70 fs/inode.c:1668 Code: ff 83 e3 40 48 89 de e8 3a d9 ad ff 48 85 db 75 14 e8 90 dc ad ff 48 89 ef e8 58 f7 ff ff 5b 5d e9 81 dc ad ff e8 7c dc ad ff <0f> 0b e8 05 f5 ed ff eb c5 0f 1f 00 41 56 41 55 41 54 55 48 89 fd RSP: 0018:ffffc9000a2a7e10 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000040 RCX: ffffffff81c66276 RDX: ffff888083c6e140 RSI: ffffffff81c66294 RDI: 0000000000000007 RBP: ffff888085375600 R08: 0000000000000001 R09: ffff8880964780a3 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff888085375560 R14: ffff888085375600 R15: ffff888087dc7330 FS: 00007f384b48d700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcced476008 CR3: 000000009109a000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400