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 9 extents in 0ms
gfs2: fsid=syz:syz.0: first mount done, others may mount
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 = 398
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:5346 [syz.0.0] gfs2_quota_sync+0x359/0x460 fs/gfs2/quota.c:1357
gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
CPU: 0 UID: 0 PID: 5346 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+0xe8/0x150 lib/dump_stack.c:120
gfs2_withdraw+0xc3/0x1b0 fs/gfs2/util.c:250
gfs2_dinode_in fs/gfs2/glops.c:-1 [inline]
gfs2_inode_refresh fs/gfs2/glops.c:486 [inline]
inode_go_instantiate+0xaa8/0x1210 fs/gfs2/glops.c:507
gfs2_instantiate+0x168/0x220 fs/gfs2/glock.c:441
gfs2_glock_holder_ready fs/gfs2/glock.c:1250 [inline]
gfs2_glock_wait+0x1d4/0x2a0 fs/gfs2/glock.c:1270
gfs2_glock_nq_init fs/gfs2/glock.h:252 [inline]
do_sync+0x46f/0xc60 fs/gfs2/quota.c:923
gfs2_quota_sync+0x359/0x460 fs/gfs2/quota.c:1357
gfs2_sync_fs+0x4c/0xb0 fs/gfs2/super.c:658
sync_filesystem+0xee/0x230 fs/sync.c:56
gfs2_reconfigure+0xbb/0xb20 fs/gfs2/ops_fstype.c:1554
reconfigure_super+0x227/0x880 fs/super.c:1077
do_remount fs/namespace.c:3264 [inline]
path_mount+0xd29/0xff0 fs/namespace.c:4014
do_mount fs/namespace.c:4035 [inline]
__do_sys_mount fs/namespace.c:4224 [inline]
__se_sys_mount+0x313/0x410 fs/namespace.c:4201
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe063990f6a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe0647a9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fe0647a9ef0 RCX: 00007fe063990f6a
RDX: 0000200000000f40 RSI: 0000200000000f00 RDI: 0000000000000000
RBP: 0000200000000f40 R08: 00007fe0647a9ef0 R09: 0000000001a4a438
R10: 0000000001a4a438 R11: 0000000000000246 R12: 0000200000000f00
R13: 00007fe0647a9eb0 R14: 0000000000000000 R15: 0000200000000100
gfs2: fsid=syz:syz.0: about to withdraw this file system
loop0: detected capacity change from 32768 to 32767
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: 5346 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:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 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 c0 e3 35 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000e437b68 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8b5e361e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8b5e361e RDI: 0000000000000007
RBP: ffffffff8400f750 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100831069f R12: 0000000000000000
R13: 0000000000000038 R14: 0000000000000038 R15: 0000000000000001
FS: 00007fe0647aa6c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 0000000041fbc000 CR4: 0000000000352ef0
Call Trace:
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:573
kasan_check_byte include/linux/kasan.h:402 [inline]
lock_acquire+0x84/0x340 kernel/locking/lockdep.c:5842
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
gfs2_glock_dq+0x50/0x7c0 fs/gfs2/glock.c:1577
gfs2_glock_dq_uninit+0x25/0xb0 fs/gfs2/glock.c:1623
gfs2_seek_hole+0x16c/0x240 fs/gfs2/inode.c:2237
gfs2_llseek+0xfa/0x240 fs/gfs2/file.c:79
vfs_llseek fs/read_write.c:389 [inline]
ksys_lseek fs/read_write.c:402 [inline]
__do_sys_lseek fs/read_write.c:412 [inline]
__se_sys_lseek fs/read_write.c:410 [inline]
__x64_sys_lseek+0x14f/0x1e0 fs/read_write.c:410
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe06398f7c9
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:00007fe0647aa038 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007fe063be5fa0 RCX: 00007fe06398f7c9
RDX: 0000000000000004 RSI: 0000000000000f13 RDI: 0000000000000004
RBP: 00007fe063a13f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe063be6038 R14: 00007fe063be5fa0 R15: 00007ffc2f553258
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:210
Code: 0f 1f 84 00 00 00 00 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 c0 e3 35 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000e437b68 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8b5e361e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8b5e361e RDI: 0000000000000007
RBP: ffffffff8400f750 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100831069f R12: 0000000000000000
R13: 0000000000000038 R14: 0000000000000038 R15: 0000000000000001
FS: 00007fe0647aa6c0(0000) GS:ffff88808d414000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000010000 CR3: 0000000041fbc000 CR4: 0000000000352ef0
----------------
Code disassembly (best guess):
0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
7: 00
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: 90 nop
15: 90 nop
16: 90 nop
17: 90 nop
18: 0f 1f 40 d6 nopl -0x2a(%rax)
1c: 48 c1 ef 03 shr $0x3,%rdi
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 0f b6 04 07 movzbl (%rdi,%rax,1),%eax <-- trapping instruction
2e: 3c 08 cmp $0x8,%al
30: 0f 92 c0 setb %al
33: e9 c0 e3 35 09 jmp 0x935e3f8
38: cc int3
39: 66 data16
3a: 66 data16
3b: 66 data16
3c: 66 data16
3d: 66 data16
3e: 66 data16
3f: 2e cs