FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-08291-g805ba04cb7cc #0
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 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+0x40a/0x550 lib/fault-inject.c:174
prepare_alloc_pages+0x1da/0x5b0 mm/page_alloc.c:4514
__alloc_frozen_pages_noprof+0x16f/0x710 mm/page_alloc.c:4728
alloc_pages_mpol+0x311/0x660 mm/mempolicy.c:2270
alloc_frozen_pages_noprof mm/mempolicy.c:2341 [inline]
alloc_pages_noprof+0x121/0x190 mm/mempolicy.c:2361
folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2371
filemap_alloc_folio_noprof+0xe1/0x540 mm/filemap.c:1019
__filemap_get_folio+0x438/0xae0 mm/filemap.c:1970
ocfs2_grab_folios_for_write+0x562/0xda0 fs/ocfs2/aops.c:1075
ocfs2_write_begin_nolock+0x3476/0x4e40 fs/ocfs2/aops.c:1783
ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1889
generic_perform_write+0x346/0x990 mm/filemap.c:4189
ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469
iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743
do_splice_from fs/splice.c:941 [inline]
direct_splice_actor+0x11b/0x220 fs/splice.c:1164
splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108
do_splice_direct_actor fs/splice.c:1207 [inline]
do_splice_direct+0x289/0x3e0 fs/splice.c:1233
do_sendfile+0x564/0x8a0 fs/read_write.c:1363
__do_sys_sendfile64 fs/read_write.c:1424 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f27e2b8cda9
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:00007f27e3a35038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f27e2da6080 RCX: 00007f27e2b8cda9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f27e3a35090 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f27e2da6080 R15: 00007ffc68bb6328
(syz.0.0,5316,0):ocfs2_grab_folios_for_write:1080 ERROR: status = -12
(syz.0.0,5316,0):ocfs2_write_begin_nolock:1798 ERROR: status = -12
BUG: unable to handle page fault for address: fffffffffffffffc
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD e73c067 P4D e73c067 PUD e73e067 PMD 0
Oops: Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5316 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-08291-g805ba04cb7cc #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:const_folio_flags include/linux/page-flags.h:310 [inline]
RIP: 0010:folio_test_locked include/linux/page-flags.h:510 [inline]
RIP: 0010:folio_unlock+0x3b/0x170 mm/filemap.c:1499
Code: 49 bf 00 00 00 00 00 fc ff df e8 c0 56 c7 ff 4d 8d 66 08 4d 89 e5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 e7 e8 85 eb 2d 00 <49> 8b 1c 24 48 89 de 48 83 e6 01 31 ff e8 73 5b c7 ff 48 83 e3 01
RSP: 0018:ffffc9000d476be8 EFLAGS: 00010246
RAX: ffffffff81f81610 RBX: 1ffff1100a4f7806 RCX: ffff88801e278000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: fffffffffffffff4
RBP: ffff8880527bc030 R08: ffffffff83ad35f2 R09: 1ffffffff20371ce
R10: dffffc0000000000 R11: fffffbfff20371cf R12: fffffffffffffffc
R13: 1fffffffffffffff R14: fffffffffffffff4 R15: dffffc0000000000
FS: 00007f27e3a356c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffc CR3: 00000000406e6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ocfs2_unlock_and_free_folios+0x71/0x1a0 fs/ocfs2/aops.c:772
ocfs2_free_write_ctxt fs/ocfs2/aops.c:820 [inline]
ocfs2_write_begin_nolock+0x3908/0x4e40 fs/ocfs2/aops.c:1837
ocfs2_write_begin+0x205/0x3a0 fs/ocfs2/aops.c:1889
generic_perform_write+0x346/0x990 mm/filemap.c:4189
ocfs2_file_write_iter+0x19af/0x2180 fs/ocfs2/file.c:2469
iter_file_splice_write+0xbfa/0x1510 fs/splice.c:743
do_splice_from fs/splice.c:941 [inline]
direct_splice_actor+0x11b/0x220 fs/splice.c:1164
splice_direct_to_actor+0x586/0xc80 fs/splice.c:1108
do_splice_direct_actor fs/splice.c:1207 [inline]
do_splice_direct+0x289/0x3e0 fs/splice.c:1233
do_sendfile+0x564/0x8a0 fs/read_write.c:1363
__do_sys_sendfile64 fs/read_write.c:1424 [inline]
__se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1410
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f27e2b8cda9
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:00007f27e3a35038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f27e2da6080 RCX: 00007f27e2b8cda9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000005
RBP: 00007f27e3a35090 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000002
R13: 0000000000000000 R14: 00007f27e2da6080 R15: 00007ffc68bb6328
Modules linked in:
CR2: fffffffffffffffc
---[ end trace 0000000000000000 ]---
RIP: 0010:const_folio_flags include/linux/page-flags.h:310 [inline]
RIP: 0010:folio_test_locked include/linux/page-flags.h:510 [inline]
RIP: 0010:folio_unlock+0x3b/0x170 mm/filemap.c:1499
Code: 49 bf 00 00 00 00 00 fc ff df e8 c0 56 c7 ff 4d 8d 66 08 4d 89 e5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 e7 e8 85 eb 2d 00 <49> 8b 1c 24 48 89 de 48 83 e6 01 31 ff e8 73 5b c7 ff 48 83 e3 01
RSP: 0018:ffffc9000d476be8 EFLAGS: 00010246
RAX: ffffffff81f81610 RBX: 1ffff1100a4f7806 RCX: ffff88801e278000
RDX: 0000000000000000 RSI: 0000000000000002 RDI: fffffffffffffff4
RBP: ffff8880527bc030 R08: ffffffff83ad35f2 R09: 1ffffffff20371ce
R10: dffffc0000000000 R11: fffffbfff20371cf R12: fffffffffffffffc
R13: 1fffffffffffffff R14: fffffffffffffff4 R15: dffffc0000000000
FS: 00007f27e3a356c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffffc CR3: 00000000406e6000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15
7: fc ff df
a: e8 c0 56 c7 ff call 0xffc756cf
f: 4d 8d 66 08 lea 0x8(%r14),%r12
13: 4d 89 e5 mov %r12,%r13
16: 49 c1 ed 03 shr $0x3,%r13
1a: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1)
20: 74 08 je 0x2a
22: 4c 89 e7 mov %r12,%rdi
25: e8 85 eb 2d 00 call 0x2debaf
* 2a: 49 8b 1c 24 mov (%r12),%rbx <-- trapping instruction
2e: 48 89 de mov %rbx,%rsi
31: 48 83 e6 01 and $0x1,%rsi
35: 31 ff xor %edi,%edi
37: e8 73 5b c7 ff call 0xffc75baf
3c: 48 83 e3 01 and $0x1,%rbx