VFS_BUG_ON_INODE(inode_state_read_once(inode) & I_CLEAR) encountered for inode ffff88802ad673c0 fs sockfs mode 140777 opflags 0x8 flags 0x0 state 0x300 count 0 ------------[ cut here ]------------ kernel BUG at fs/inode.c:1971! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 3 UID: 0 PID: 8076 Comm: syz.3.460 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.part.0+0xb3b/0x1190 fs/inode.c:1971 Code: 4b 68 ff ff 90 0f 0b e8 73 fa 7c ff 90 0f 0b 90 e9 d3 f8 ff ff e8 65 fa 7c ff 48 c7 c6 e0 78 a0 8b 48 89 df e8 26 68 ff ff 90 <0f> 0b e8 4e fa 7c ff 48 c7 c6 40 79 a0 8b 48 89 df e8 0f 68 ff ff RSP: 0018:ffffc90003b57c98 EFLAGS: 00010296 RAX: 000000000000009f RBX: ffff88802ad673c0 RCX: ffffffff819b5b55 RDX: 0000000000000000 RSI: ffffffff819bd739 RDI: 0000000000000005 RBP: 0000000000000200 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 00000000ffffffff R12: 0000000000000000 R13: ffffffff90867734 R14: ffff88802ad67490 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888097a8a000(0063) knlGS:00000000f53dcb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7439154 CR3: 000000006562e000 CR4: 0000000000352ef0 Call Trace: iput+0x35/0x40 fs/inode.c:1966 __sock_release+0x20b/0x270 net/socket.c:665 sock_release net/socket.c:681 [inline] sock_map_fd net/socket.c:510 [inline] __sys_socket+0x23a/0x2d0 net/socket.c:1747 __do_compat_sys_socketcall net/compat.c:448 [inline] __se_compat_sys_socketcall net/compat.c:423 [inline] __ia32_compat_sys_socketcall+0x5cf/0x780 net/compat.c:423 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xe8/0x680 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f11579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f53db4f0 EFLAGS: 00000286 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00000000f53db500 RDX: 00000000f73a6ff4 RSI: 0000000000000000 RDI: 00000000f73a6ff4 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:iput.part.0+0xb3b/0x1190 fs/inode.c:1971 Code: 4b 68 ff ff 90 0f 0b e8 73 fa 7c ff 90 0f 0b 90 e9 d3 f8 ff ff e8 65 fa 7c ff 48 c7 c6 e0 78 a0 8b 48 89 df e8 26 68 ff ff 90 <0f> 0b e8 4e fa 7c ff 48 c7 c6 40 79 a0 8b 48 89 df e8 0f 68 ff ff RSP: 0018:ffffc90003b57c98 EFLAGS: 00010296 RAX: 000000000000009f RBX: ffff88802ad673c0 RCX: ffffffff819b5b55 RDX: 0000000000000000 RSI: ffffffff819bd739 RDI: 0000000000000005 RBP: 0000000000000200 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 00000000ffffffff R12: 0000000000000000 R13: ffffffff90867734 R14: ffff88802ad67490 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff888097a8a000(0063) knlGS:00000000f53dcb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f54bcda4 CR3: 000000006562e000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi