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Message-ID: <0000000000004b8a1505fb3e84ac@google.com>
Date: Tue, 09 May 2023 01:26:49 -0700
From: syzbot <syzbot+8fab910f890e17016919@...kaller.appspotmail.com>
To: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: [syzbot] [hfs?] kernel BUG in __filemap_get_folio (2)
Hello,
syzbot found the following issue on:
HEAD commit: 3c4aa4434377 Merge tag 'ceph-for-6.4-rc1' of https://githu..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=170c6870280000
kernel config: https://syzkaller.appspot.com/x/.config?x=87f9126139666d37
dashboard link: https://syzkaller.appspot.com/bug?extid=8fab910f890e17016919
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: i386
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7bc7510fe41f/non_bootable_disk-3c4aa443.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1c522f5ebcfe/vmlinux-3c4aa443.xz
kernel image: https://storage.googleapis.com/syzbot-assets/b923244383b5/bzImage-3c4aa443.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8fab910f890e17016919@...kaller.appspotmail.com
kswapd+0x677/0xd60 mm/vmscan.c:7727
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:996!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 2 PID: 5174 Comm: syz-executor.3 Not tainted 6.3.0-syzkaller-13091-g3c4aa4434377 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:put_page_testzero include/linux/mm.h:996 [inline]
RIP: 0010:folio_put_testzero include/linux/mm.h:1002 [inline]
RIP: 0010:folio_put include/linux/mm.h:1429 [inline]
RIP: 0010:__filemap_get_folio+0x8e2/0x990 mm/filemap.c:1937
Code: e8 b3 20 d3 ff 48 c7 c6 00 b2 56 8a 4c 89 e7 e8 d4 a6 0e 00 0f 0b e8 9d 20 d3 ff 48 c7 c6 00 b2 56 8a 4c 89 e7 e8 be a6 0e 00 <0f> 0b e8 87 20 d3 ff 4c 89 e7 49 c7 c4 f5 ff ff ff e8 f8 44 03 00
RSP: 0018:ffffc900038579a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888016a38000 RSI: ffffffff81b13d42 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e7a71d7
R10: fffffbfff1cf4e3a R11: 0000000000000000 R12: ffffea00007e5b80
R13: ffff8880734a4480 R14: 0000000000000000 R15: ffffea00007e5bb4
FS: 0000000000000000(0000) GS:ffff88802c800000(0063) knlGS:00000000581dd380
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f734e1b0 CR3: 0000000071e9b000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
truncate_inode_pages_range+0x350/0xf10 mm/truncate.c:377
hfs_evict_inode+0x1a/0x100 fs/hfs/inode.c:563
evict+0x2ed/0x6b0 fs/inode.c:665
iput_final fs/inode.c:1747 [inline]
iput.part.0+0x50a/0x740 fs/inode.c:1773
iput+0x5c/0x80 fs/inode.c:1763
hfs_btree_close+0x282/0x390 fs/hfs/btree.c:158
hfs_mdb_put+0xbf/0x380 fs/hfs/mdb.c:360
generic_shutdown_super+0x158/0x480 fs/super.c:500
kill_block_super+0xa1/0x100 fs/super.c:1407
deactivate_locked_super+0x98/0x160 fs/super.c:331
deactivate_super+0xb1/0xd0 fs/super.c:362
cleanup_mnt+0x2ae/0x3d0 fs/namespace.c:1177
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
__do_fast_syscall_32+0x72/0xf0 arch/x86/entry/common.c:181
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7fa7579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000ffa4afdc EFLAGS: 00000292 ORIG_RAX: 0000000000000034
RAX: 0000000000000000 RBX: 00000000ffa4b080 RCX: 000000000000000a
RDX: 00000000f734e000 RSI: 0000000000000000 RDI: 00000000f72a2535
RBP: 00000000ffa4b080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_page_testzero include/linux/mm.h:996 [inline]
RIP: 0010:folio_put_testzero include/linux/mm.h:1002 [inline]
RIP: 0010:folio_put include/linux/mm.h:1429 [inline]
RIP: 0010:__filemap_get_folio+0x8e2/0x990 mm/filemap.c:1937
Code: e8 b3 20 d3 ff 48 c7 c6 00 b2 56 8a 4c 89 e7 e8 d4 a6 0e 00 0f 0b e8 9d 20 d3 ff 48 c7 c6 00 b2 56 8a 4c 89 e7 e8 be a6 0e 00 <0f> 0b e8 87 20 d3 ff 4c 89 e7 49 c7 c4 f5 ff ff ff e8 f8 44 03 00
RSP: 0018:ffffc900038579a0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888016a38000 RSI: ffffffff81b13d42 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e7a71d7
R10: fffffbfff1cf4e3a R11: 0000000000000000 R12: ffffea00007e5b80
R13: ffff8880734a4480 R14: 0000000000000000 R15: ffffea00007e5bb4
FS: 0000000000000000(0000) GS:ffff88802c900000(0063) knlGS:00000000581dd380
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f737c0c4 CR3: 0000000071e9b000 CR4: 0000000000350ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 retq
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to change bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
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