loop0: detected capacity change from 0 to 32768
BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5323)
BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
BTRFS info (device loop0): using sha256 checksum algorithm
BTRFS info (device loop0): rebuilding free space tree
BTRFS info (device loop0): turning off barriers
BTRFS info (device loop0): turning on sync discard
BTRFS info (device loop0): enabling free space tree
BTRFS info (device loop0): force clearing of disk cache
BTRFS info (device loop0): enabling auto defrag
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5323 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
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x412/0x560 lib/fault-inject.c:174
should_failslab+0xa8/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4522 [inline]
slab_alloc_node mm/slub.c:4875 [inline]
__do_kmalloc_node mm/slub.c:5294 [inline]
__kmalloc_noprof+0xe8/0x760 mm/slub.c:5307
kmalloc_noprof include/linux/slab.h:954 [inline]
tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_number_perm+0x246/0x630 security/tomoyo/file.c:728
security_file_ioctl+0xc3/0x2a0 security/security.c:2512
__do_sys_ioctl fs/ioctl.c:591 [inline]
__se_sys_ioctl+0x47/0x170 fs/ioctl.c:583
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: 0033:0x7f383af9ce59
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:00007f383bee4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f383b215fa0 RCX: 00007f383af9ce59
RDX: 0000200000000780 RSI: 00000000c4009420 RDI: 0000000000000006
RBP: 00007f383bee5050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f383b216038 R14: 00007f383b215fa0 R15: 00007ffca6435748
ERROR: Out of memory at tomoyo_realpath_from_path.
BTRFS info (device loop0): balance: start -sconvert=raid0,soft
BTRFS info (device loop0): relocating block group 8519680 flags system
BTRFS info (device loop0): relocating block group 1048576 flags system
BTRFS warning (device loop0): discard failed for extent [5398528, 5402623]: errno=-512 unknown
BTRFS warning (device loop0): discard failed for extent [5423104, 5443583]: errno=-512 unknown
BTRFS warning (device loop0): discard failed for extent [5447680, 5468159]: errno=-512 unknown
------------[ cut here ]------------
BTRFS: Transaction aborted (error -28)
WARNING: fs/btrfs/volumes.c:3477 at btrfs_remove_chunk+0xe12/0x15b0 fs/btrfs/volumes.c:3477, CPU#0: syz.0.0/5323
Modules linked in:
CPU: 0 UID: 0 PID: 5323 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:btrfs_remove_chunk+0xe19/0x15b0 fs/btrfs/volumes.c:3477
Code: fe 00 00 00 e8 08 de af fd 84 c0 74 27 e8 2f d4 ca fd e9 eb 00 00 00 e8 25 d4 ca fd 48 8d 3d 4e 5d 3f 0c 48 8b 5c 24 18 89 de <67> 48 0f b9 3a e9 12 01 00 00 e8 c8 0a b0 07 89 c3 31 ff 89 c6 e8
RSP: 0018:ffffc9000dad7940 EFLAGS: 00010293
RAX: ffffffff83faffab RBX: ffffffffffffffe4 RCX: ffff88801f97a500
RDX: 0000000000000000 RSI: 00000000ffffffe4 RDI: ffffffff903a5d00
RBP: ffffc9000dad7a90 R08: ffff88801f97a500 R09: 0000000000000003
R10: 00000000fffffffb R11: 0000000000000000 R12: ffff888040531400
R13: ffff8880558a24c8 R14: dffffc0000000000 R15: 0000000000000000
FS: 00007f383bee56c0(0000) GS:ffff88808c87f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f383b0e6770 CR3: 00000000360c1000 CR4: 0000000000352ef0
Call Trace:
btrfs_relocate_chunk_finish fs/btrfs/volumes.c:3565 [inline]
btrfs_relocate_chunk+0x3ed/0x820 fs/btrfs/volumes.c:3619
__btrfs_balance+0x1db0/0x2ae0 fs/btrfs/volumes.c:4509
btrfs_balance+0xaf3/0x11b0 fs/btrfs/volumes.c:4896
btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3453
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
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: 0033:0x7f383af9ce59
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:00007f383bee4fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f383b215fa0 RCX: 00007f383af9ce59
RDX: 0000200000000780 RSI: 00000000c4009420 RDI: 0000000000000006
RBP: 00007f383bee5050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f383b216038 R14: 00007f383b215fa0 R15: 00007ffca6435748
----------------
Code disassembly (best guess):
0: fe 00 incb (%rax)
2: 00 00 add %al,(%rax)
4: e8 08 de af fd call 0xfdafde11
9: 84 c0 test %al,%al
b: 74 27 je 0x34
d: e8 2f d4 ca fd call 0xfdcad441
12: e9 eb 00 00 00 jmp 0x102
17: e8 25 d4 ca fd call 0xfdcad441
1c: 48 8d 3d 4e 5d 3f 0c lea 0xc3f5d4e(%rip),%rdi # 0xc3f5d71
23: 48 8b 5c 24 18 mov 0x18(%rsp),%rbx
28: 89 de mov %ebx,%esi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: e9 12 01 00 00 jmp 0x146
34: e8 c8 0a b0 07 call 0x7b00b01
39: 89 c3 mov %eax,%ebx
3b: 31 ff xor %edi,%edi
3d: 89 c6 mov %eax,%esi
3f: e8 .byte 0xe8