syzbot


kernel BUG in reiserfs_update_sd_size

Status: upstream: reported C repro on 2023/06/18 21:59
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+355f69812c866c9c66f8@syzkaller.appspotmail.com
First crash: 372d, last: 31d
Bug presence (1)
Date Name Commit Repro Result
2023/09/16 upstream (ToT) 57d88e8a5974 C [report] kernel BUG in reiserfs_update_sd_size
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 kernel BUG in reiserfs_update_sd_size reiserfs C 1 479d 546d 0/1 upstream: reported C repro on 2022/12/26 01:36
linux-4.19 kernel BUG at fs/reiserfs/journal.c:LINE! reiserfs C error 139 485d 1372d 0/1 upstream: reported C repro on 2020/09/21 00:32
upstream kernel BUG in reiserfs_update_sd_size reiserfs C error done 32 163d 550d 0/27 auto-obsoleted due to no activity on 2024/04/22 14:33
linux-5.15 kernel BUG in reiserfs_update_sd_size origin:upstream C error 5 42d 441d 0/3 upstream: reported C repro on 2023/04/10 10:33
Fix bisection attempts (8)
Created Duration User Patch Repo Result
2024/05/24 03:52 1h12m bisect fix linux-6.1.y job log (0) log
2024/04/20 11:06 1h17m bisect fix linux-6.1.y job log (0) log
2024/03/02 07:17 1h08m bisect fix linux-6.1.y job log (0) log
2024/01/25 03:36 1h11m bisect fix linux-6.1.y job log (0) log
2023/12/25 09:39 1h00m bisect fix linux-6.1.y job log (0) log
2023/11/24 06:35 1h39m bisect fix linux-6.1.y job log (0) log
2023/10/20 22:03 1h26m bisect fix linux-6.1.y job log (0) log
2023/08/07 12:09 4h06m (2) bisect fix linux-6.1.y job log (0) log

Sample crash report:
REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
REISERFS (device loop0): checking transaction log (loop0)
REISERFS (device loop0): Using r5 hash to sort names
REISERFS panic (device loop0): vs-13065 update_stat_data: key [1 2 0x0 SD], found item *3.5*[1 2 0(0) DIR], item_len 80, item_location 3972, free_space(entry_count) 3
------------[ cut here ]------------
kernel BUG at fs/reiserfs/prints.c:390!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3545 Comm: syz-executor284 Not tainted 6.1.53-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023
RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390
Code: c7 c1 20 13 fe 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 e0 13 fe 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 40 19 e2 91 e8 cf 39 5a 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc90003c2f540 EFLAGS: 00010246
RAX: 00000000000000a6 RBX: ffffffff8afdc7e0 RCX: d3b9edcf9cb6cf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003c2f630 R08: ffffffff816dbf1c R09: fffff52000785e21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8afdc800
R13: ffffc90003c2f560 R14: ffffffff8c99d038 R15: ffff88807b88a6a8
FS:  0000555556b8c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78b1a8a000 CR3: 0000000024ee9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 update_stat_data fs/reiserfs/inode.c:1424 [inline]
 reiserfs_update_sd_size+0xfde/0x10b0 fs/reiserfs/inode.c:1497
 reiserfs_update_sd fs/reiserfs/reiserfs.h:3099 [inline]
 reiserfs_mkdir+0x758/0x8f0 fs/reiserfs/namei.c:877
 xattr_mkdir fs/reiserfs/xattr.c:76 [inline]
 create_privroot fs/reiserfs/xattr.c:882 [inline]
 reiserfs_xattr_init+0x348/0x730 fs/reiserfs/xattr.c:1005
 reiserfs_fill_super+0x2203/0x2620 fs/reiserfs/super.c:2175
 mount_bdev+0x2c9/0x3f0 fs/super.c:1432
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1562
 do_new_mount+0x28b/0xae0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f78b9ac98fa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff046b5de8 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fff046b5e00 RCX: 00007f78b9ac98fa
RDX: 0000000020001100 RSI: 00000000200000c0 RDI: 00007fff046b5e00
RBP: 0000000000000004 R08: 00007fff046b5e40 R09: 00000000000010f1
R10: 0000000000800008 R11: 0000000000000286 R12: 0000000000800008
R13: 00007fff046b5e40 R14: 0000000000000003 R15: 0000000000400000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__reiserfs_panic+0x13a/0x140 fs/reiserfs/prints.c:390
Code: c7 c1 20 13 fe 8a 48 0f 44 c8 48 0f 44 d8 48 c7 c7 e0 13 fe 8a 4c 89 fe 48 89 da 4d 89 f0 49 c7 c1 40 19 e2 91 e8 cf 39 5a 08 <0f> 0b 0f 1f 40 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4
RSP: 0018:ffffc90003c2f540 EFLAGS: 00010246
RAX: 00000000000000a6 RBX: ffffffff8afdc7e0 RCX: d3b9edcf9cb6cf00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc90003c2f630 R08: ffffffff816dbf1c R09: fffff52000785e21
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffffff8afdc800
R13: ffffc90003c2f560 R14: ffffffff8c99d038 R15: ffff88807b88a6a8
FS:  0000555556b8c380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f78b1a8a000 CR3: 0000000024ee9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/09/15 22:45 linux-6.1.y 09045dae0d90 0b6a67ac .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan kernel BUG in reiserfs_update_sd_size
2024/03/18 09:17 linux-6.1.y d7543167affd d615901c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in reiserfs_update_sd_size
2023/06/18 22:17 linux-6.1.y ca87e77a2ef8 f3921d4d .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan-arm64 kernel BUG in reiserfs_update_sd_size
2023/06/18 21:58 linux-6.1.y ca87e77a2ef8 f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 kernel BUG in reiserfs_update_sd_size
* Struck through repros no longer work on HEAD.