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: I/O error - block = 8589934885, function = gfs2_ail1_empty_one, file = fs/gfs2/log.c, line = 326
CPU: 0 UID: 0 PID: 5345 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_ail1_empty_one fs/gfs2/log.c:326 [inline]
gfs2_ail1_empty+0x2ba/0x7c0 fs/gfs2/log.c:360
gfs2_flush_revokes+0x5c/0x80 fs/gfs2/log.c:805
revoke_lo_before_commit+0x2f/0xe70 fs/gfs2/lops.c:856
lops_before_commit fs/gfs2/lops.h:42 [inline]
__gfs2_log_flush+0xa68/0x1dc0 fs/gfs2/log.c:1137
gfs2_log_flush+0x34/0x50 fs/gfs2/log.c:1216
gfs2_trans_end+0x37b/0x570 fs/gfs2/trans.c:163
alloc_dinode+0x408/0x560 fs/gfs2/inode.c:447
gfs2_create_inode+0xc4a/0x1620 fs/gfs2/inode.c:822
gfs2_atomic_open+0x116/0x200 fs/gfs2/inode.c:1401
atomic_open+0x14f/0x370 fs/namei.c:4364
lookup_open fs/namei.c:4477 [inline]
open_last_lookups fs/namei.c:4611 [inline]
path_openat+0x10e9/0x3860 fs/namei.c:4855
do_file_open+0x23e/0x4a0 fs/namei.c:4887
do_sys_openat2+0x113/0x200 fs/open.c:1364
do_sys_open fs/open.c:1370 [inline]
__do_sys_creat fs/open.c:1448 [inline]
__se_sys_creat fs/open.c:1442 [inline]
__x64_sys_creat+0x8f/0xc0 fs/open.c:1442
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f100f19cdd9
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:00007f1010095fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f100f415fa0 RCX: 00007f100f19cdd9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000580
RBP: 00007f100f232d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f100f416038 R14: 00007f100f415fa0 R15: 00007fffab676a68
gfs2: fsid=syz:syz.0: about to withdraw this file system
gfs2: fsid=syz:syz.0: gfs2_create_inode: -5
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: 5345 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 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90006277a70 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8bacbd3e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8bacbd3e RDI: 0000000000000007
RBP: ffffffff8421af01 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1007fb60a9 R12: 0000000000000000
R13: 0000000000000038 R14: 0000000000000038 R15: 0000000000000001
FS: 00007f10100966c0(0000) GS:ffff88808c885000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f100f34f4d0 CR3: 00000000121f2000 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+0x84/0x350 kernel/locking/lockdep.c:5842
__raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158
spin_lock include/linux/spinlock.h:342 [inline]
gfs2_glock_dq+0xc1/0xb40 fs/gfs2/glock.c:1598
gfs2_glock_dq_uninit+0x25/0xb0 fs/gfs2/glock.c:1656
gfs2_seek_data+0x17d/0x250 fs/gfs2/inode.c:2243
gfs2_llseek+0x1c1/0x270 fs/gfs2/file.c:75
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:63 [inline]
do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f100f19cdd9
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:00007f1010095fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
RAX: ffffffffffffffda RBX: 00007f100f415fa0 RCX: 00007f100f19cdd9
RDX: 0000000000000003 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 00007f100f232d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f100f416038 R14: 00007f100f415fa0 R15: 00007fffab676a68
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 c3 cc cc cc cc cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc90006277a70 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffffffff8bacbd3e RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8bacbd3e RDI: 0000000000000007
RBP: ffffffff8421af01 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1007fb60a9 R12: 0000000000000000
R13: 0000000000000038 R14: 0000000000000038 R15: 0000000000000001
FS: 00007f10100966c0(0000) GS:ffff88808c885000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f100f34f4d0 CR3: 00000000121f2000 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: c3 ret
30: cc int3
31: cc int3
32: cc int3
33: cc int3
34: cc int3
35: 66 data16
36: 66 data16
37: 66 data16
38: 66 data16
39: 66 data16
3a: 66 data16
3b: 2e cs