ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt
print_req_error: I/O error, dev loop0, sector 0
ERROR: (device loop0): xtSearch: XT_GETPAGE: xtree page corrupt
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
Modules linked in:
CPU: 1 PID: 9575 Comm: syz-executor220 Not tainted 4.14.272-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff888092f28400 task.stack: ffff88808d978000
RIP: 0010:diFree+0x154/0x2830 fs/jfs/jfs_imap.c:892
RSP: 0018:ffff88808d97f9a0 EFLAGS: 00010247
RAX: dffffc0000000000 RBX: ffff8880aa0098c0 RCX: ffff88808bc90a74
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88808bc6caa8
RBP: 0000000000000000 R08: ffffffff8b9e39d0 R09: 0000000000000001
R10: 0000000000000000 R11: ffff888092f28400 R12: ffff88808bc90a68
R13: 0000000000000004 R14: ffffffff87b68060 R15: ffff88808bc90c20
FS: 0000555556335300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc4ea2d000 CR3: 00000000b0533000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
jfs_evict_inode+0x16f/0x1e0 fs/jfs/inode.c:165
evict+0x2c8/0x700 fs/inode.c:555
iput_final fs/inode.c:1524 [inline]
iput+0x458/0x7e0 fs/inode.c:1551
diFreeSpecial fs/jfs/jfs_imap.c:569 [inline]
diFreeSpecial+0x63/0x80 fs/jfs/jfs_imap.c:561
jfs_mount+0x20a/0x380 fs/jfs/jfs_mount.c:219
jfs_fill_super+0x52a/0xab0 fs/jfs/super.c:589
mount_bdev+0x2b3/0x360 fs/super.c:1134
mount_fs+0x92/0x2a0 fs/super.c:1237
vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046
vfs_kern_mount fs/namespace.c:1036 [inline]
do_new_mount fs/namespace.c:2572 [inline]
do_mount+0xe65/0x2a10 fs/namespace.c:2902
SYSC_mount fs/namespace.c:3118 [inline]
SyS_mount+0xa8/0x120 fs/namespace.c:3095
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f1bf64e1dba
RSP: 002b:00007ffc4ea2c3b8 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffc4ea2c420 RCX: 00007f1bf64e1dba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc4ea2c3e0
RBP: 00007ffc4ea2c3e0 R08: 00007ffc4ea2c420 R09: 0000000000000002
R10: 0000000000000000 R11: 0000000000000282 R12: 0000000020000260
R13: 0000000000000003 R14: 0000000000000004 R15: 0000000000000004
Code: 48 8b 44 24 18 48 8b 68 80 48 8b 44 24 20 4c 8d 6d 04 48 c1 e8 0c 4c 89 ea 48 c1 ea 03 48 89 04 24 48 b8 00 00 00 00 00 fc ff df <0f> b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85
RIP: diFree+0x154/0x2830 fs/jfs/jfs_imap.c:892 RSP: ffff88808d97f9a0
---[ end trace 46662daa114d9f36 ]---
----------------
Code disassembly (best guess):
0: 48 8b 44 24 18 mov 0x18(%rsp),%rax
5: 48 8b 68 80 mov -0x80(%rax),%rbp
9: 48 8b 44 24 20 mov 0x20(%rsp),%rax
e: 4c 8d 6d 04 lea 0x4(%rbp),%r13
12: 48 c1 e8 0c shr $0xc,%rax
16: 4c 89 ea mov %r13,%rdx
19: 48 c1 ea 03 shr $0x3,%rdx
1d: 48 89 04 24 mov %rax,(%rsp)
21: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
28: fc ff df
* 2b: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx <-- trapping instruction
2f: 4c 89 e8 mov %r13,%rax
32: 83 e0 07 and $0x7,%eax
35: 83 c0 03 add $0x3,%eax
38: 38 d0 cmp %dl,%al
3a: 7c 08 jl 0x44
3c: 84 d2 test %dl,%dl
3e: 0f .byte 0xf
3f: 85 .byte 0x85