syzbot


kernel BUG in ocfs2_truncate_file

Status: upstream: reported on 2024/09/22 23:08
Subsystems: ocfs2
[Documentation on labels]
Reported-by: syzbot+b93b65ee321c97861072@syzkaller.appspotmail.com
First crash: 117d, last: 5d18h
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [ocfs2?] kernel BUG in ocfs2_truncate_file 0 (1) 2024/09/22 23:08

Sample crash report:
loop0: detected capacity change from 0 to 32768
=======================================================
WARNING: The mand mount option has been deprecated and
         and is ignored by this kernel. Remove the mand
         option from the mount to silence this warning.
=======================================================
ocfs2: Mounting device (7,0) on (node local, slot 0) with ordered data mode.
loop0: detected capacity change from 32768 to 0
syz.0.0: attempt to access beyond end of device
loop0: rw=0, sector=10576, nr_sectors = 1 limit=0
(syz.0.0,5315,0):__ocfs2_xattr_set_value_outside:1385 ERROR: status = -5
(syz.0.0,5315,0):ocfs2_xa_set:2260 ERROR: status = -5
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=10704, nr_sectors = 128 limit=0
loop0: detected capacity change from 0 to 32767
OCFS2: ERROR (device loop0): int ocfs2_validate_inode_block(struct super_block *, struct buffer_head *): Invalid dinode #17060: signature = 
On-disk corruption discovered. Please run fsck.ocfs2 once the filesystem is unmounted.
OCFS2: File system is now read-only.
(syz.0.0,5315,0):ocfs2_assign_bh:2416 ERROR: status = -30
(syz.0.0,5315,0):ocfs2_inode_lock_full_nested:2511 ERROR: status = -30
(syz.0.0,5315,0):ocfs2_inode_lock_tracker:2695 ERROR: status = -30
(syz.0.0,5315,0):ocfs2_xattr_get:1335 ERROR: status = -30
(syz.0.0,5315,0):ocfs2_truncate_file:460 ERROR: bug expression: le64_to_cpu(fe->i_size) != i_size_read(inode)
(syz.0.0,5315,0):ocfs2_truncate_file:460 ERROR: Inode 17060, inode i_size = 65191 != di i_size = 0, i_flags = 0x0
------------[ cut here ]------------
kernel BUG at fs/ocfs2/file.c:460!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.13.0-rc6-syzkaller-00038-g09a0fa92e5b4 #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:ocfs2_truncate_file+0x139f/0x1560 fs/ocfs2/file.c:454
Code: 40 01 00 00 48 c7 c6 69 05 0f 8e ba cc 01 00 00 48 c7 c1 e0 76 48 8c 4d 89 e8 4d 89 f9 50 41 56 e8 26 28 18 00 48 83 c4 10 90 <0f> 0b e8 3a eb 37 08 f3 0f 1e fa 65 44 8b 35 5a e7 72 7c bf 07 00
RSP: 0018:ffffc9000d38f280 EFLAGS: 00010282
RAX: 1e52d01ae9cb2600 RBX: ffff888053e9882c RCX: 1e52d01ae9cb2600
RDX: ffffc9000e6e2000 RSI: 0000000000004db3 RDI: 0000000000004db4
RBP: ffffc9000d38f4b0 R08: ffffffff817f1a7c R09: 1ffff92001a71dbc
R10: dffffc0000000000 R11: fffff52001a71dbd R12: 1ffff1100a7d3104
R13: 00000000000042a4 R14: 0000000000000000 R15: 000000000000fea7
FS:  00007f51c9bf56c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51c9bd2fe0 CR3: 00000000401f4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ocfs2_setattr+0x1890/0x1ef0 fs/ocfs2/file.c:1212
 notify_change+0xbca/0xe90 fs/attr.c:552
 do_truncate+0x220/0x310 fs/open.c:65
 handle_truncate fs/namei.c:3449 [inline]
 do_open fs/namei.c:3832 [inline]
 path_openat+0x2e1e/0x3590 fs/namei.c:3987
 do_filp_open+0x27f/0x4e0 fs/namei.c:4014
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0x247/0x2a0 fs/open.c:1428
 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: 0033:0x7f51cd785d29
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:00007f51c9bf5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f51cd975fa0 RCX: 00007f51cd785d29
RDX: 000000000000275a RSI: 00000000200010c0 RDI: ffffffffffffff9c
RBP: 00007f51cd801b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f51cd975fa0 R15: 00007fffa6b2b7a8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ocfs2_truncate_file+0x139f/0x1560 fs/ocfs2/file.c:454
Code: 40 01 00 00 48 c7 c6 69 05 0f 8e ba cc 01 00 00 48 c7 c1 e0 76 48 8c 4d 89 e8 4d 89 f9 50 41 56 e8 26 28 18 00 48 83 c4 10 90 <0f> 0b e8 3a eb 37 08 f3 0f 1e fa 65 44 8b 35 5a e7 72 7c bf 07 00
RSP: 0018:ffffc9000d38f280 EFLAGS: 00010282
RAX: 1e52d01ae9cb2600 RBX: ffff888053e9882c RCX: 1e52d01ae9cb2600
RDX: ffffc9000e6e2000 RSI: 0000000000004db3 RDI: 0000000000004db4
RBP: ffffc9000d38f4b0 R08: ffffffff817f1a7c R09: 1ffff92001a71dbc
R10: dffffc0000000000 R11: fffff52001a71dbd R12: 1ffff1100a7d3104
R13: 00000000000042a4 R14: 0000000000000000 R15: 000000000000fea7
FS:  00007f51c9bf56c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51c9bd2fe0 CR3: 00000000401f4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (14):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/08 06:30 upstream 09a0fa92e5b4 f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2025/01/06 02:43 upstream 9244696b34f2 f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2025/01/05 13:36 upstream ab75170520d4 f3558dbf .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/12/22 11:47 upstream 48f506ad0b68 b4fbdbd4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/12/14 08:07 upstream 4800575d8c0b 7cbfbb3a .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/12/05 09:56 upstream feffde684ac2 29f61fce .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/11/29 04:16 upstream 65ae975e97d5 5df23865 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/11/09 23:29 upstream da4373fbcf00 6b856513 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/10/26 07:37 upstream c71f8fb4dc91 65e8686b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/10/10 14:54 upstream d3d1556696c1 d44647df .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/10/07 21:41 upstream 8cf0b93919e1 d7906eff .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/09/23 08:06 upstream af9c191ac2a0 6f888b75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/09/22 00:43 upstream 1ec6d097897a 6f888b75 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
2024/09/18 23:03 upstream 4a39ac5b7d62 c673ca06 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ocfs2_truncate_file
* Struck through repros no longer work on HEAD.