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UBSAN: array-index-out-of-bounds in xtSearch (2)

Status: fixed on 2025/05/02 06:39
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+ccb458b6679845ee0bae@syzkaller.appspotmail.com
Fix commit: a1166e98d80c jfs: define xtree root and page independently
First crash: 729d, last: 233d
Fix commit to backport (bisect log) :
tree: upstream
commit a779ed754e52d582b8c0e17959df063108bd0656
Author: Dave Kleikamp <dave.kleikamp@oracle.com>
Date: Thu Oct 5 14:16:14 2023 +0000

  jfs: define xtree root and page independently

  
▶ ▼ Discussions (4)
Title Replies (including bot) Last reply
[PATCH 5.15.y] jfs: define xtree root and page independently 1 (1) 2025/04/27 15:45
[PATCH 5.15.y] jfs: define xtree root and page independently 2 (2) 2025/04/22 13:28
Test if it's still reproducible 1 (2) 2025/04/15 18:09
[PATCH 5.15.y] jfs: define xtree root and page independently 1 (1) 2025/04/15 18:08
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2023/11/14 linux-5.15.y (ToT) 80529b4968a8 C [report] UBSAN: array-index-out-of-bounds in xtSearch
2023/11/14 upstream (ToT) 9bacdd8996c7 C Didn't crash
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 UBSAN: array-index-out-of-bounds in xtSearch origin:upstream 15 C done 3 849d 926d 3/3 fixed on 2023/09/23 10:26
upstream UBSAN: array-index-out-of-bounds in xtSearch jfs 15 C unreliable done 122 709d 1127d 25/29 fixed on 2024/01/08 11:23
linux-6.1 UBSAN: array-index-out-of-bounds in xtSearch (2) origin:lts-only 15 C done 98 250d 729d 3/3 fixed on 2025/05/02 07:04
linux-5.15 UBSAN: array-index-out-of-bounds in xtSearch 15 17 921d 963d 0/3 auto-obsoleted due to no activity on 2023/08/22 15:17
▶ ▼ Last patch testing requests (7)
Created Duration User Patch Repo Result
2025/04/15 17:51 17m duttaditya18@gmail.com patch git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git linux-5.15.y OK log
2025/03/12 04:25 1h07m retest repro linux-5.15.y report log
2025/02/23 23:32 9m retest repro linux-5.15.y report log
2024/12/31 21:14 10m retest repro linux-5.15.y report log
2024/12/10 10:52 51m retest repro linux-5.15.y report log
2024/10/15 00:06 0m retest repro linux-5.15.y error
2024/09/30 17:10 10m nogikh@google.com linux-5.15.y report log
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2024/01/04 17:14 6h46m fix candidate upstream OK (1) job log
2023/11/24 11:31 15m fix candidate upstream error job log

Sample crash report:
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:371:4
index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]')
CPU: 0 PID: 3503 Comm: syz-executor364 Not tainted 5.15.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_out_of_bounds+0x118/0x140 lib/ubsan.c:282
 xtSearch+0x6dc/0x1ca0 fs/jfs/jfs_xtree.c:371
 xtLookup+0x2c0/0x8e0 fs/jfs/jfs_xtree.c:163
 jfs_get_block+0x2e5/0xe50 fs/jfs/inode.c:218
 __mpage_writepage+0x4f9/0x1c00 fs/mpage.c:564
 write_cache_pages+0xa97/0x1160 mm/page-writeback.c:2255
 mpage_writepages+0x13c/0x2f0 fs/mpage.c:712
 do_writepages+0x481/0x730 mm/page-writeback.c:2364
 filemap_fdatawrite_wbc+0x1d6/0x230 mm/filemap.c:400
 __filemap_fdatawrite_range mm/filemap.c:433 [inline]
 file_write_and_wait_range+0x1cb/0x2b0 mm/filemap.c:810
 jfs_fsync+0x6e/0x1c0 fs/jfs/file.c:24
 generic_write_sync include/linux/fs.h:2956 [inline]
 generic_file_write_iter+0x15e/0x1b0 mm/filemap.c:3948
 do_iter_readv_writev+0x594/0x7a0
 do_iter_write+0x1ea/0x760 fs/read_write.c:855
 iter_file_splice_write+0x806/0xfa0 fs/splice.c:689
 do_splice_from fs/splice.c:767 [inline]
 direct_splice_actor+0xe3/0x1c0 fs/splice.c:936
 splice_direct_to_actor+0x500/0xc10 fs/splice.c:891
 do_splice_direct+0x285/0x3d0 fs/splice.c:979
 do_sendfile+0x625/0xff0 fs/read_write.c:1249
 __do_sys_sendfile64 fs/read_write.c:1317 [inline]
 __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1303
 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+0x61/0xcb
RIP: 0033:0x7fecc9306589
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fecc92a2228 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fecc9393658 RCX: 00007fecc9306589
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000008
RBP: 00007fecc9393650 R08: 00007fecc92a26c0 R09: 00007fecc92a26c0
R10: 0001000000201005 R11: 0000000000000246 R12: 00007fecc939365c
R13: 00007fecc935ff58 R14: 00007fecc935a0c0 R15: 00007fff6d28c2e8
 </TASK>
================================================================================

Crashes (115):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/25 13:54 linux-5.15.y 458ce51d0356 8d446f15 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2023/11/14 20:33 linux-5.15.y 80529b4968a8 cb976f63 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2025/03/16 08:52 linux-5.15.y 0c935c049b5c e2826670 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2025/02/25 11:37 linux-5.15.y c16c81c81336 d34966d1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/09/21 07:11 linux-5.15.y 3a5928702e71 6f888b75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/23 23:27 linux-5.15.y 7c6d66f0266f e50e8da5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/16 09:41 linux-5.15.y f45bea23c39c e8709b21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/16 03:24 linux-5.15.y f45bea23c39c e8709b21 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/10 21:44 linux-5.15.y f45bea23c39c 6f7fa383 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/10 16:41 linux-5.15.y f45bea23c39c 6f7fa383 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/04 16:49 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/04 08:21 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/07/04 08:21 linux-5.15.y 4878aadf2d15 3f2748a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/21 22:49 linux-5.15.y 4878aadf2d15 edc5149a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/12 21:54 linux-5.15.y c61bd26ae81a f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/09 11:59 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/09 07:37 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/09 01:07 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/08 16:41 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/08 12:37 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/08 09:58 linux-5.15.y c61bd26ae81a 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/06/07 06:18 linux-5.15.y c61bd26ae81a 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/31 09:08 linux-5.15.y c61bd26ae81a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/31 08:29 linux-5.15.y c61bd26ae81a 34889ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/25 04:28 linux-5.15.y 83655231580b a10a183e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/23 06:43 linux-5.15.y 83655231580b 4d098039 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/22 08:36 linux-5.15.y 83655231580b 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/21 19:44 linux-5.15.y 83655231580b 4c0d3ee3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/20 04:20 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/11 12:46 linux-5.15.y 284087d4f7d5 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/05/09 23:42 linux-5.15.y 284087d4f7d5 05079661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/03/07 20:41 linux-5.15.y 574362648507 2b789849 .config console log report info ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/03/07 07:41 linux-5.15.y 574362648507 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/03/07 03:54 linux-5.15.y 574362648507 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/03/06 04:47 linux-5.15.y 80efc6265290 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2024/03/06 02:46 linux-5.15.y 80efc6265290 f39a7eed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2023/11/05 19:58 linux-5.15.y 12952a23a5da 500bfdc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan UBSAN: array-index-out-of-bounds in xtSearch
2025/02/09 18:57 linux-5.15.y c16c81c81336 ef44b750 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/10/25 09:12 linux-5.15.y 74cdd62cb470 c79b8ca5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/07/05 16:47 linux-5.15.y f45bea23c39c 2a40360c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/07/03 10:15 linux-5.15.y 4878aadf2d15 1ecfa2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/22 04:15 linux-5.15.y 83655231580b 1014eca7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/21 05:23 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/20 08:22 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/20 05:29 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/20 00:00 linux-5.15.y 83655231580b c0f1611a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/04 06:05 linux-5.15.y 284087d4f7d5 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/05/02 01:08 linux-5.15.y b925f60c6ee7 3ba885bc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
2024/04/05 02:53 linux-5.15.y 9465fef4ae35 0ee3535e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 UBSAN: array-index-out-of-bounds in xtSearch
* Struck through repros no longer work on HEAD.