kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1580 Comm: syz-executor.0 Not tainted 5.4.61-syzkaller-00890-g0ede4657b27f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sock_release net/socket.c:591 [inline] RIP: 0010:sock_close+0xbf/0x250 net/socket.c:1269 Code: fc ff df 41 80 3c 04 00 74 08 4c 89 ff e8 79 71 4a fe 49 8b 1f 48 83 c3 10 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 53 71 4a fe 4c 89 f7 ff 13 49 8d 5e RSP: 0018:ffff8881c9727e20 EFLAGS: 00010202 RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881cb7cbd30 RBP: ffffffff84750a40 R08: dffffc0000000000 R09: ffffed10396f97a7 R10: ffffed10396f97a7 R11: 0000000000000000 R12: 1ffff110396f9784 R13: ffff8881cb7cbd20 R14: ffff8881cb7cbc00 R15: ffff8881cb7cbc20 FS: 00007f6ae65c5700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556f955bdfe9 CR3: 00000001cc0f9005 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:00007f6ae65c4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 RAX: 0000000000000000 RBX: 0000000000002ac0 RCX: 000000000045d5b9 RDX: 0000000000000005 RSI: 0000000000000001 RDI: 0000000000000006 RBP: 000000000118cf88 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffe0f1f9c8f R14: 00007f6ae65c59c0 R15: 000000000118cf4c Modules linked in: ---[ end trace be6b5c581897d764 ]--- RIP: 0010:__sock_release net/socket.c:591 [inline] RIP: 0010:sock_close+0xbf/0x250 net/socket.c:1269 Code: fc ff df 41 80 3c 04 00 74 08 4c 89 ff e8 79 71 4a fe 49 8b 1f 48 83 c3 10 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 53 71 4a fe 4c 89 f7 ff 13 49 8d 5e RSP: 0018:ffff8881c9727e20 EFLAGS: 00010202 RAX: 0000000000000002 RBX: 0000000000000010 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8881cb7cbd30 RBP: ffffffff84750a40 R08: dffffc0000000000 R09: ffffed10396f97a7 R10: ffffed10396f97a7 R11: 0000000000000000 R12: 1ffff110396f9784 R13: ffff8881cb7cbd20 R14: ffff8881cb7cbc00 R15: ffff8881cb7cbc20 FS: 00007f6ae65c5700(0000) GS:ffff8881db800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556f955bdfe9 CR3: 00000001cc0f9005 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400