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 (5322)
BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d
BTRFS info (device loop0): using sha256 (sha256-avx2) checksum algorithm
BTRFS info (device loop0): rebuilding free space tree
BTRFS info (device loop0): disabling free space tree
BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE (0x1)
BTRFS info (device loop0): clearing compat-ro feature flag for FREE_SPACE_TREE_VALID (0x2)
BTRFS info (device loop0): balance: start -d -m
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00325-g7cdabafc0012 #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:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x424/0x570 lib/fault-inject.c:174
should_failslab+0xac/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4104 [inline]
slab_alloc_node mm/slub.c:4180 [inline]
kmem_cache_alloc_noprof+0x78/0x390 mm/slub.c:4207
add_delayed_ref+0x1a0/0x1e90 fs/btrfs/delayed-ref.c:1007
btrfs_free_tree_block+0x361/0xd10 fs/btrfs/extent-tree.c:3434
btrfs_force_cow_block+0xf6c/0x2010 fs/btrfs/ctree.c:555
btrfs_cow_block+0x377/0x840 fs/btrfs/ctree.c:688
btrfs_search_slot+0xc12/0x31c0 fs/btrfs/ctree.c:2088
btrfs_insert_empty_items+0x9c/0x1a0 fs/btrfs/ctree.c:4287
btrfs_insert_empty_item fs/btrfs/ctree.h:673 [inline]
btrfs_insert_empty_inode+0x1de/0x2f0 fs/btrfs/inode-item.c:391
__insert_orphan_inode fs/btrfs/relocation.c:3714 [inline]
create_reloc_inode+0x408/0xa50 fs/btrfs/relocation.c:3785
btrfs_relocate_block_group+0x554/0xd80 fs/btrfs/relocation.c:3991
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3511
__btrfs_balance+0x1a93/0x25e0 fs/btrfs/volumes.c:4292
btrfs_balance+0xbde/0x10c0 fs/btrfs/volumes.c:4669
btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3586
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ad918d169
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:00007f7ada03e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7ad93a5fa0 RCX: 00007f7ad918d169
RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000006
RBP: 00007f7ada03e090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7ad93a5fa0 R15: 00007ffd750acd38
</TASK>
BTRFS error (device loop0 state A): Transaction aborted (error -12)
BTRFS: error (device loop0 state A) in btrfs_force_cow_block:560: errno=-12 Out of memory
BTRFS info (device loop0 state EA): forced readonly
BTRFS info (device loop0 state EA): relocating block group 6881280 flags data|metadata
Oops: general protection fault, probably for non-canonical address 0xdffffc000000008c: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000460-0x0000000000000467]
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00325-g7cdabafc0012 #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:iput+0x3b/0xa50 fs/inode.c:1914
Code: 38 49 89 fe e8 16 f0 7b ff 4d 85 f6 0f 84 8c 03 00 00 49 bd 00 00 00 00 00 fc ff df 4d 8d be d0 00 00 00 4c 89 fb 48 c1 eb 03 <42> 0f b6 04 2b 84 c0 0f 85 c4 08 00 00 48 89 5c 24 10 41 8b 1f bd
RSP: 0018:ffffc9000d5479c0 EFLAGS: 00010203
RAX: ffffffff8247651a RBX: 000000000000008c RCX: ffff888000c14880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000394
RBP: ffff888052991010 R08: ffff88805270700b R09: 1ffff1100a4e0e01
R10: dffffc0000000000 R11: ffffed100a4e0e02 R12: ffff88803fa50800
R13: dffffc0000000000 R14: 0000000000000394 R15: 0000000000000464
FS: 00007f7ada03e6c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ef6bfe6678 CR3: 0000000043c90000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
btrfs_relocate_block_group+0xb86/0xd80 fs/btrfs/relocation.c:4052
btrfs_relocate_chunk+0x12c/0x3b0 fs/btrfs/volumes.c:3511
__btrfs_balance+0x1a93/0x25e0 fs/btrfs/volumes.c:4292
btrfs_balance+0xbde/0x10c0 fs/btrfs/volumes.c:4669
btrfs_ioctl_balance+0x3f5/0x660 fs/btrfs/ioctl.c:3586
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:906 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:892
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7ad918d169
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:00007f7ada03e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7ad93a5fa0 RCX: 00007f7ad918d169
RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000006
RBP: 00007f7ada03e090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7ad93a5fa0 R15: 00007ffd750acd38
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:iput+0x3b/0xa50 fs/inode.c:1914
Code: 38 49 89 fe e8 16 f0 7b ff 4d 85 f6 0f 84 8c 03 00 00 49 bd 00 00 00 00 00 fc ff df 4d 8d be d0 00 00 00 4c 89 fb 48 c1 eb 03 <42> 0f b6 04 2b 84 c0 0f 85 c4 08 00 00 48 89 5c 24 10 41 8b 1f bd
RSP: 0018:ffffc9000d5479c0 EFLAGS: 00010203
RAX: ffffffff8247651a RBX: 000000000000008c RCX: ffff888000c14880
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000394
RBP: ffff888052991010 R08: ffff88805270700b R09: 1ffff1100a4e0e01
R10: dffffc0000000000 R11: ffffed100a4e0e02 R12: ffff88803fa50800
R13: dffffc0000000000 R14: 0000000000000394 R15: 0000000000000464
FS: 00007f7ada03e6c0(0000) GS:ffff88808c593000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000043c90000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 49 89 fe mov %rdi,%r14
3: e8 16 f0 7b ff call 0xff7bf01e
8: 4d 85 f6 test %r14,%r14
b: 0f 84 8c 03 00 00 je 0x39d
11: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13
18: fc ff df
1b: 4d 8d be d0 00 00 00 lea 0xd0(%r14),%r15
22: 4c 89 fb mov %r15,%rbx
25: 48 c1 eb 03 shr $0x3,%rbx
* 29: 42 0f b6 04 2b movzbl (%rbx,%r13,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 0f 85 c4 08 00 00 jne 0x8fa
36: 48 89 5c 24 10 mov %rbx,0x10(%rsp)
3b: 41 8b 1f mov (%r15),%ebx
3e: bd .byte 0xbd