loop0: detected capacity change from 0 to 32768
gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 1ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 24385
gfs2: fsid=syz:syz.0: Corruption found in quota_change0file: duplicate identifier in slot 48768
gfs2: fsid=syz:syz.0: found 1 quota changes
gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 11 2339, function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 402
gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:aqonN t:EX d:EX/0 a:0 v:0 r:2 m:20 p:1
gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:5333 [syz.0.0] gfs2_quota_sync+0x353/0x450 fs/gfs2/quota.c:1372
gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
CPU: 0 UID: 0 PID: 5333 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 04/01/2014
Call Trace:
dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
gfs2_withdraw+0xc3/0x1b0 fs/gfs2/util.c:249
gfs2_dinode_in fs/gfs2/glops.c:-1 [inline]
gfs2_inode_refresh fs/gfs2/glops.c:491 [inline]
inode_go_instantiate+0xbc1/0x12b0 fs/gfs2/glops.c:512
gfs2_instantiate+0x168/0x220 fs/gfs2/glock.c:415
gfs2_glock_holder_ready fs/gfs2/glock.c:1226 [inline]
gfs2_glock_wait+0x1d4/0x2a0 fs/gfs2/glock.c:1246
gfs2_glock_nq_init fs/gfs2/glock.h:253 [inline]
do_sync+0x49c/0xbb0 fs/gfs2/quota.c:938
gfs2_quota_sync+0x353/0x450 fs/gfs2/quota.c:1372
gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:662
sync_filesystem+0xf1/0x240 fs/sync.c:56
gfs2_reconfigure+0xb7/0xb20 fs/gfs2/ops_fstype.c:1555
reconfigure_super+0x232/0x8f0 fs/super.c:1128
do_remount fs/namespace.c:3538 [inline]
path_mount+0xd4e/0x1050 fs/namespace.c:4329
do_mount fs/namespace.c:4350 [inline]
__do_sys_mount fs/namespace.c:4566 [inline]
__se_sys_mount+0x31d/0x420 fs/namespace.c:4543
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f757f3a07ca
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75802c8e18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f75802c8ea0 RCX: 00007f757f3a07ca
RDX: 00002000000016c0 RSI: 0000200000001700 RDI: 0000000000000000
RBP: 00002000000016c0 R08: 00007f75802c8ea0 R09: 0000000001a4a438
R10: 0000000001a4a438 R11: 0000000000000246 R12: 0000200000001700
R13: 00007f75802c8e60 R14: 0000000000000000 R15: 0000200000001740
gfs2: fsid=syz:syz.0: about to withdraw this file system
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 0 UID: 0 PID: 5333 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 04/01/2014
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 90 ee b3 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000e117a58 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8bee420e RCX: 8000000000000002
RDX: 0000000000000000 RSI: ffffffff8bee420e RDI: 0000000000000007
RBP: ffffc9000e117c80 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1008a9f805 R12: 0000000000000038
R13: 0000000000000000 R14: 0000000000000038 R15: 0000000000000001
FS: 00007f75802c96c0(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f757321f000 CR3: 0000000054182000 CR4: 0000000000352ef0
Call Trace:
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:584
kasan_check_byte include/linux/kasan.h:402 [inline]
lock_acquire+0x7d/0x350 kernel/locking/lockdep.c:5916
__raw_spin_lock include/linux/spinlock_api_smp.h:190 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:173
spin_lock include/linux/spinlock.h:347 [inline]
gfs2_glock_dq+0xbe/0xb40 fs/gfs2/glock.c:1574
gfs2_glock_dq_uninit+0x27/0xe0 fs/gfs2/glock.c:1632
gfs2_seek_hole+0x176/0x250 fs/gfs2/inode.c:2264
gfs2_llseek+0x117/0x270 fs/gfs2/file.c:79
vfs_llseek fs/read_write.c:391 [inline]
ksys_lseek fs/read_write.c:404 [inline]
__do_sys_lseek fs/read_write.c:414 [inline]
__se_sys_lseek fs/read_write.c:412 [inline]
__x64_sys_lseek+0x14f/0x1e0 fs/read_write.c:412
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f757f39f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f75802c8fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f757f625fa0 RCX: 00007f757f39f559
RDX: 0000000000000004 RSI: 0000000000000008 RDI: 0000000000000004
RBP: 00007f757f436b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f757f626038 R14: 00007f757f625fa0 R15: 00007ffdd0884ca8
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 79 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 90 ee b3 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000e117a58 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8bee420e RCX: 8000000000000002
RDX: 0000000000000000 RSI: ffffffff8bee420e RDI: 0000000000000007
RBP: ffffc9000e117c80 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1008a9f805 R12: 0000000000000038
R13: 0000000000000000 R14: 0000000000000038 R15: 0000000000000001
FS: 00007f75802c96c0(0000) GS:ffff88808b0b0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f757321f000 CR3: 0000000054182000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess), 4 bytes skipped:
0: 0f 1f 40 00 nopl 0x0(%rax)
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 0f 1f 40 d6 nopl -0x2a(%rax)
18: 48 c1 ef 03 shr $0x3,%rdi
1c: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
23: fc ff df
* 26: 0f b6 04 07 movzbl (%rdi,%rax,1),%eax <-- trapping instruction
2a: 3c 08 cmp $0x8,%al
2c: 0f 92 c0 setb %al
2f: e9 90 ee b3 09 jmp 0x9b3eec4
34: cc int3
35: 66 data16
36: 66 data16
37: 66 data16
38: 66 data16
39: 66 data16
3a: 66 data16
3b: 2e cs