FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.15.0-rc5-syzkaller-00123-g2c89c1b655c0 #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
fail_dump lib/fault-inject.c:73 [inline]
should_fail_ex+0x414/0x560 lib/fault-inject.c:174
should_failslab+0xa8/0x100 mm/failslab.c:46
slab_pre_alloc_hook mm/slub.c:4100 [inline]
slab_alloc_node mm/slub.c:4176 [inline]
__kmalloc_cache_noprof+0x70/0x3d0 mm/slub.c:4353
kmalloc_noprof include/linux/slab.h:905 [inline]
ocfs2_extent_map_insert_rec+0x5a6/0xf30 fs/ocfs2/extent_map.c:249
ocfs2_get_clusters+0x861/0xa70 fs/ocfs2/extent_map.c:653
ocfs2_write_cluster fs/ocfs2/aops.c:1150 [inline]
ocfs2_write_cluster_by_desc+0x69d/0x1c90 fs/ocfs2/aops.c:1218
ocfs2_write_begin_nolock+0x31a3/0x4340 fs/ocfs2/aops.c:1795
__ocfs2_page_mkwrite fs/ocfs2/mmap.c:93 [inline]
ocfs2_page_mkwrite+0x600/0xc40 fs/ocfs2/mmap.c:144
do_page_mkwrite+0x14a/0x310 mm/memory.c:3287
do_shared_fault mm/memory.c:5594 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing mm/memory.c:4160 [inline]
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x18d2/0x5380 mm/memory.c:6140
handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309
do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74
Code: cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48
RSP: 0018:ffffc9000d3cf718 EFLAGS: 00050206
RAX: ffffffff84b61f01 RBX: ffff888053c4b000 RCX: 0000000000000400
RDX: 0000000000000000 RSI: ffff888053c4bc00 RDI: 0000200000002000
RBP: ffffc9000d3cf878 R08: ffff888053c4bfff R09: 1ffff1100a7897ff
R10: dffffc0000000000 R11: ffffed100a789800 R12: 1ffff92001a79fb3
R13: 0000200000001400 R14: ffffc9000d3cfda8 R15: 0000000000001000
copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
copy_to_user_iter lib/iov_iter.c:25 [inline]
iterate_ubuf include/linux/iov_iter.h:30 [inline]
iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
iterate_and_advance include/linux/iov_iter.h:328 [inline]
_copy_to_iter+0x24c/0x15a0 lib/iov_iter.c:185
copy_page_to_iter+0xa7/0x150 lib/iov_iter.c:362
copy_folio_to_iter include/linux/uio.h:198 [inline]
filemap_read+0xe46/0x11d0 mm/filemap.c:2753
ocfs2_file_read_iter+0x3fa/0xa80 fs/ocfs2/file.c:2589
new_sync_read fs/read_write.c:489 [inline]
vfs_read+0x4cd/0x980 fs/read_write.c:570
ksys_read+0x145/0x250 fs/read_write.c:713
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f8c98e969
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:00007f7f8d710038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f7f8cbb5fa0 RCX: 00007f7f8c98e969
RDX: 0000000000002020 RSI: 0000200000000400 RDI: 0000000000000005
RBP: 00007f7f8d710090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7f8cbb5fa0 R15: 00007ffdef0160d8
(syz.0.0,5315,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer!
(syz.0.0,5315,0):ocfs2_write_end_nolock:1942 ERROR: status = -30
(syz.0.0,5315,0):ocfs2_commit_trans:382 ERROR: status = -5
------------[ cut here ]------------
kernel BUG at fs/ocfs2/mmap.c:107!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.15.0-rc5-syzkaller-00123-g2c89c1b655c0 #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:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline]
RIP: 0010:ocfs2_page_mkwrite+0xc32/0xc40 fs/ocfs2/mmap.c:144
Code: 07 e8 d2 cd 23 fe eb 0d 48 ff cb e8 c8 cd 23 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 d0 f4 ff ff e8 af cd 23 fe 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d3cf0e0 EFLAGS: 00010293
RAX: ffffffff839c02a1 RBX: 00000000ffffffe2 RCX: ffff88801f06a440
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2
RBP: ffffc9000d3cf280 R08: ffffffff8f7ed177 R09: 1ffffffff1efda2e
R10: dffffc0000000000 R11: fffffbfff1efda2f R12: ffffea00014f0980
R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000
FS: 00007f7f8d7106c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000043a67000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
do_page_mkwrite+0x14a/0x310 mm/memory.c:3287
do_shared_fault mm/memory.c:5594 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing mm/memory.c:4160 [inline]
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x18d2/0x5380 mm/memory.c:6140
handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309
do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0010:rep_movs_alternative+0x4a/0x90 arch/x86/lib/copy_user_64.S:74
Code: cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08 73 e8 eb c5 a4 c3 cc cc cc cc 48 8b 06 48 89 07 48 8d 47 08 48 83 e0 f8 48
RSP: 0018:ffffc9000d3cf718 EFLAGS: 00050206
RAX: ffffffff84b61f01 RBX: ffff888053c4b000 RCX: 0000000000000400
RDX: 0000000000000000 RSI: ffff888053c4bc00 RDI: 0000200000002000
RBP: ffffc9000d3cf878 R08: ffff888053c4bfff R09: 1ffff1100a7897ff
R10: dffffc0000000000 R11: ffffed100a789800 R12: 1ffff92001a79fb3
R13: 0000200000001400 R14: ffffc9000d3cfda8 R15: 0000000000001000
copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:147 [inline]
copy_to_user_iter lib/iov_iter.c:25 [inline]
iterate_ubuf include/linux/iov_iter.h:30 [inline]
iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
iterate_and_advance include/linux/iov_iter.h:328 [inline]
_copy_to_iter+0x24c/0x15a0 lib/iov_iter.c:185
copy_page_to_iter+0xa7/0x150 lib/iov_iter.c:362
copy_folio_to_iter include/linux/uio.h:198 [inline]
filemap_read+0xe46/0x11d0 mm/filemap.c:2753
ocfs2_file_read_iter+0x3fa/0xa80 fs/ocfs2/file.c:2589
new_sync_read fs/read_write.c:489 [inline]
vfs_read+0x4cd/0x980 fs/read_write.c:570
ksys_read+0x145/0x250 fs/read_write.c:713
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f8c98e969
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:00007f7f8d710038 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00007f7f8cbb5fa0 RCX: 00007f7f8c98e969
RDX: 0000000000002020 RSI: 0000200000000400 RDI: 0000000000000005
RBP: 00007f7f8d710090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f7f8cbb5fa0 R15: 00007ffdef0160d8
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline]
RIP: 0010:ocfs2_page_mkwrite+0xc32/0xc40 fs/ocfs2/mmap.c:144
Code: 07 e8 d2 cd 23 fe eb 0d 48 ff cb e8 c8 cd 23 fe 48 89 5c 24 08 49 be 00 00 00 00 00 fc ff df e9 d0 f4 ff ff e8 af cd 23 fe 90 <0f> 0b cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000d3cf0e0 EFLAGS: 00010293
RAX: ffffffff839c02a1 RBX: 00000000ffffffe2 RCX: ffff88801f06a440
RDX: 0000000000000000 RSI: 0000000000001000 RDI: 00000000ffffffe2
RBP: ffffc9000d3cf280 R08: ffffffff8f7ed177 R09: 1ffffffff1efda2e
R10: dffffc0000000000 R11: fffffbfff1efda2f R12: ffffea00014f0980
R13: 0000000000000100 R14: 0000000000000000 R15: 0000000000001000
FS: 00007f7f8d7106c0(0000) GS:ffff88808d6cc000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000043a67000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: cc int3
1: cc int3
2: cc int3
3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
a: 00 00 00
d: 0f 1f 00 nopl (%rax)
10: 48 8b 06 mov (%rsi),%rax
13: 48 89 07 mov %rax,(%rdi)
16: 48 83 c6 08 add $0x8,%rsi
1a: 48 83 c7 08 add $0x8,%rdi
1e: 83 e9 08 sub $0x8,%ecx
21: 74 db je 0xfffffffe
23: 83 f9 08 cmp $0x8,%ecx
26: 73 e8 jae 0x10
28: eb c5 jmp 0xffffffef
* 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction
2c: c3 ret
2d: cc int3
2e: cc int3
2f: cc int3
30: cc int3
31: 48 8b 06 mov (%rsi),%rax
34: 48 89 07 mov %rax,(%rdi)
37: 48 8d 47 08 lea 0x8(%rdi),%rax
3b: 48 83 e0 f8 and $0xfffffffffffffff8,%rax
3f: 48 rex.W