FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x414/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4901 [inline] slab_alloc_node mm/slub.c:5234 [inline] kmem_cache_alloc_noprof+0x74/0x6f0 mm/slub.c:5265 alloc_empty_file+0x55/0x1d0 fs/file_table.c:237 alloc_file fs/file_table.c:354 [inline] alloc_file_pseudo+0x13d/0x210 fs/file_table.c:383 sock_alloc_file+0xb8/0x2e0 net/socket.c:483 sock_map_fd net/socket.c:508 [inline] __sys_socket+0x13e/0x320 net/socket.c:1747 __do_sys_socket net/socket.c:1752 [inline] __se_sys_socket net/socket.c:1750 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1750 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff93e58f7c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff93f475fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007ff93e7e5fa0 RCX: 00007ff93e58f7c9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ff93e7e6038 R14: 00007ff93e7e5fa0 R15: 00007ffc4fc84798 VFS_BUG_ON_INODE(inode_state_read_once(inode) & I_CLEAR) encountered for inode ffff888042fb9200 fs sockfs mode 140777 opflags 0xc flags 0x0 state 0x300 count 0 ------------[ cut here ]------------ kernel BUG at fs/inode.c:1971! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5332 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:iput+0xfc9/0x1030 fs/inode.c:1971 Code: 8b 7c 24 18 48 c7 c6 20 f3 79 8b e8 51 ae e6 fe 90 0f 0b e8 79 cd 7f ff 48 8b 7c 24 18 48 c7 c6 c0 f2 79 8b e8 38 ae e6 fe 90 <0f> 0b 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c cd fb ff ff 4c 89 ef RSP: 0018:ffffc9000d437de8 EFLAGS: 00010282 RAX: 000000000000009f RBX: dffffc0000000000 RCX: 7cb418ffe990fa00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff1ed8026 R08: ffffc9000d437aa7 R09: 1ffff92001a86f54 R10: dffffc0000000000 R11: fffff52001a86f55 R12: 1ffff110085f7280 R13: ffff888042fb9400 R14: 0000000000000200 R15: 1ffffffff1f02fd2 FS: 00007ff93f4766c0(0000) GS:ffff88808d683000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8d9089ad8 CR3: 000000001f9f8000 CR4: 0000000000352ef0 Call Trace: __sock_release net/socket.c:665 [inline] sock_release net/socket.c:681 [inline] sock_map_fd net/socket.c:510 [inline] __sys_socket+0x2bf/0x320 net/socket.c:1747 __do_sys_socket net/socket.c:1752 [inline] __se_sys_socket net/socket.c:1750 [inline] __x64_sys_socket+0x7a/0x90 net/socket.c:1750 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff93e58f7c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff93f475fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007ff93e7e5fa0 RCX: 00007ff93e58f7c9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ff93e7e6038 R14: 00007ff93e7e5fa0 R15: 00007ffc4fc84798 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:iput+0xfc9/0x1030 fs/inode.c:1971 Code: 8b 7c 24 18 48 c7 c6 20 f3 79 8b e8 51 ae e6 fe 90 0f 0b e8 79 cd 7f ff 48 8b 7c 24 18 48 c7 c6 c0 f2 79 8b e8 38 ae e6 fe 90 <0f> 0b 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c cd fb ff ff 4c 89 ef RSP: 0018:ffffc9000d437de8 EFLAGS: 00010282 RAX: 000000000000009f RBX: dffffc0000000000 RCX: 7cb418ffe990fa00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffffffff1ed8026 R08: ffffc9000d437aa7 R09: 1ffff92001a86f54 R10: dffffc0000000000 R11: fffff52001a86f55 R12: 1ffff110085f7280 R13: ffff888042fb9400 R14: 0000000000000200 R15: 1ffffffff1f02fd2 FS: 00007ff93f4766c0(0000) GS:ffff88808d683000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8d9089ad8 CR3: 000000001f9f8000 CR4: 0000000000352ef0