loop0: detected capacity change from 0 to 512
[EXT4 FS bs=2048, gc=1, bpg=16384, ipg=32, mo=a842c119, mo2=0002]
System zones: 0-2, 18-18, 34-35
__kmem_cache_create_args(ext4_groupinfo_2k) failed with error -22
CPU: 0 UID: 0 PID: 5356 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+0x189/0x250 lib/dump_stack.c:120
__kmem_cache_create_args+0x237/0x320 mm/slab_common.c:353
__kmem_cache_create include/linux/slab.h:353 [inline]
ext4_groupinfo_create_slab fs/ext4/mballoc.c:3590 [inline]
ext4_mb_init+0x2ff/0x2860 fs/ext4/mballoc.c:3693
__ext4_fill_super fs/ext4/super.c:5558 [inline]
ext4_fill_super+0x5253/0x6090 fs/ext4/super.c:5728
get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1692
vfs_get_tree+0x92/0x2b0 fs/super.c:1815
do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808
do_mount fs/namespace.c:4136 [inline]
__do_sys_mount fs/namespace.c:4347 [inline]
__se_sys_mount+0x317/0x410 fs/namespace.c:4324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a5239034a
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:00007f9a5316de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9a5316def0 RCX: 00007f9a5239034a
RDX: 0000200000000180 RSI: 0000200000000140 RDI: 00007f9a5316deb0
RBP: 0000200000000180 R08: 00007f9a5316def0 R09: 000000000021081e
R10: 000000000021081e R11: 0000000000000246 R12: 0000200000000140
R13: 00007f9a5316deb0 R14: 00000000000004fa R15: 00002000000012c0
EXT4-fs: no memory for groupinfo slab cache
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 UID: 0 PID: 5356 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:199
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 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 80 83 5a 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000d347700 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffffffff8b7edbf7 RCX: 36cb8f2ee3d1cf00
RDX: 0000000000000000 RSI: ffffffff8b7edbf7 RDI: 0000000000000003
RBP: ffffffff8b7b0d59 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f878c7 R12: 0000000000000000
R13: 0000000000000018 R14: 0000000000000018 R15: 0000000000000001
FS: 00007f9a5316e6c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8afcab5492 CR3: 00000000409b2000 CR4: 0000000000352ef0
Call Trace:
__kasan_check_byte+0x12/0x40 mm/kasan/common.c:567
kasan_check_byte include/linux/kasan.h:399 [inline]
lock_acquire+0x8d/0x360 kernel/locking/lockdep.c:5842
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162
xa_destroy+0x59/0x2e0 lib/xarray.c:2390
ext4_mb_avg_fragment_size_destroy fs/ext4/mballoc.c:3659 [inline]
ext4_mb_init+0x136a/0x2860 fs/ext4/mballoc.c:3817
__ext4_fill_super fs/ext4/super.c:5558 [inline]
ext4_fill_super+0x5253/0x6090 fs/ext4/super.c:5728
get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1692
vfs_get_tree+0x92/0x2b0 fs/super.c:1815
do_new_mount+0x2a2/0x9e0 fs/namespace.c:3808
do_mount fs/namespace.c:4136 [inline]
__do_sys_mount fs/namespace.c:4347 [inline]
__se_sys_mount+0x317/0x410 fs/namespace.c:4324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a5239034a
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:00007f9a5316de68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f9a5316def0 RCX: 00007f9a5239034a
RDX: 0000200000000180 RSI: 0000200000000140 RDI: 00007f9a5316deb0
RBP: 0000200000000180 R08: 00007f9a5316def0 R09: 000000000021081e
R10: 000000000021081e R11: 0000000000000246 R12: 0000200000000140
R13: 00007f9a5316deb0 R14: 00000000000004fa R15: 00002000000012c0
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30 mm/kasan/generic.c:199
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 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 80 83 5a 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000d347700 EFLAGS: 00010006
RAX: dffffc0000000000 RBX: ffffffff8b7edbf7 RCX: 36cb8f2ee3d1cf00
RDX: 0000000000000000 RSI: ffffffff8b7edbf7 RDI: 0000000000000003
RBP: ffffffff8b7b0d59 R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f878c7 R12: 0000000000000000
R13: 0000000000000018 R14: 0000000000000018 R15: 0000000000000001
FS: 00007f9a5316e6c0(0000) GS:ffff88808d00a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8afcab5492 CR3: 00000000409b2000 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: 66 0f 1f 00 nopw (%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 80 83 5a 09 jmp 0x95a83b8
38: cc int3
39: 66 data16
3a: 66 data16
3b: 66 data16
3c: 66 data16
3d: 66 data16
3e: 66 data16
3f: 2e cs