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UBSAN: array-index-out-of-bounds in dbJoin

Status: upstream: reported C repro on 2024/05/14 08:42
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+815a5691fe6de3cdb492@syzkaller.appspotmail.com
First crash: 590d, last: 11d
Fix bisection: failed (error log, bisect log)
  
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2024/05/14 upstream (ToT) a5131c3fdf26 C [report] UBSAN: array-index-out-of-bounds in dbJoin
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in dbJoin jfs 19 C error inconclusive 1029 3d18h 1172d 0/29 upstream: reported C repro on 2022/10/10 07:35
linux-5.15 UBSAN: array-index-out-of-bounds in dbJoin origin:upstream 15 C 77 3d03h 596d 0/3 upstream: reported C repro on 2024/05/08 02:35
linux-4.14 KASAN: use-after-free Read in dbJoin 19 C 2 1037d 1186d 0/1 upstream: reported C repro on 2022/09/26 07:12
linux-4.19 KASAN: use-after-free Read in dbJoin 19 C error 1 1185d 1185d 0/1 upstream: reported C repro on 2022/09/26 15:15
▶ ▼ Fix bisection attempts (2)
Created Duration User Patch Repo Result
2024/10/14 23:00 0m bisect fix linux-6.1.y error job log
2024/06/25 04:07 1h18m bisect fix linux-6.1.y OK (0) job log log

Sample crash report:
================================================================================
UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2780:24
index 65536 is out of range for type 's8[1365]' (aka 'signed char[1365]')
CPU: 0 PID: 107 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106
 ubsan_epilogue+0xa/0x30 lib/ubsan.c:151
 __ubsan_handle_out_of_bounds+0xdf/0xf0 lib/ubsan.c:282
 dbJoin+0x29a/0x300 fs/jfs/jfs_dmap.c:2780
 dbFreeBits+0x4e1/0xda0 fs/jfs/jfs_dmap.c:2340
 dbFreeDmap fs/jfs/jfs_dmap.c:2089 [inline]
 dbFree+0x32e/0x640 fs/jfs/jfs_dmap.c:398
 txFreeMap+0x9e2/0xde0 fs/jfs/jfs_txnmgr.c:2516
 xtTruncate+0xcb5/0x2c60 fs/jfs/jfs_xtree.c:2467
 jfs_free_zero_link+0x337/0x490 fs/jfs/namei.c:758
 jfs_evict_inode+0x359/0x430 fs/jfs/inode.c:159
 evict+0x485/0x870 fs/inode.c:705
 txLazyCommit fs/jfs/jfs_txnmgr.c:2665 [inline]
 jfs_lazycommit+0x427/0xa50 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
================================================================================

Crashes (53):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/13 19:51 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/12/29 00:24 linux-6.1.y 563edd786f0a d3ccff63 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/05/14 13:58 linux-6.1.y 909ba1f1b414 fdb4c10c .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2025/12/13 18:47 linux-6.1.y 50cbba13faa2 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/12/28 22:34 linux-6.1.y 563edd786f0a d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/28 23:39 linux-6.1.y ee5e09825b81 ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/28 17:11 linux-6.1.y ee5e09825b81 ef3de9e8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/27 08:25 linux-6.1.y ee5e09825b81 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/27 08:25 linux-6.1.y ee5e09825b81 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/27 08:25 linux-6.1.y ee5e09825b81 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/27 08:25 linux-6.1.y ee5e09825b81 9aee4e0b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/17 09:58 linux-6.1.y 117ac406ba90 dbc93b08 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/14 07:24 linux-6.1.y 36790ef5e00b bde81f6f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/13 18:52 linux-6.1.y 36790ef5e00b f21a18ca .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/11 16:33 linux-6.1.y 36790ef5e00b 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/11 16:33 linux-6.1.y 36790ef5e00b 6f4edef4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 22:20 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 22:19 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 22:17 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 22:17 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 22:17 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:55 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:54 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:54 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:53 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:53 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:53 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:48 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/08/05 18:48 linux-6.1.y 48d525b0e463 e35c337f .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/31 06:53 linux-6.1.y c1cec4dad96b 6fde257d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/31 06:52 linux-6.1.y c1cec4dad96b 6fde257d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/31 06:52 linux-6.1.y c1cec4dad96b 6fde257d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/22 18:17 linux-6.1.y 9b3f9a5b12dc df655b64 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:14 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:13 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:13 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:12 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:03 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:03 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 14:03 linux-6.1.y 7753af06eebf bc144f9a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 00:31 linux-6.1.y 7753af06eebf 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 00:30 linux-6.1.y 7753af06eebf 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/07/10 00:30 linux-6.1.y 7753af06eebf 79d68ada .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/05/17 06:24 linux-6.1.y 909ba1f1b414 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/05/17 06:24 linux-6.1.y 909ba1f1b414 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/05/17 06:24 linux-6.1.y 909ba1f1b414 c2e07261 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
2024/05/14 08:42 linux-6.1.y 909ba1f1b414 fdb4c10c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan UBSAN: array-index-out-of-bounds in dbJoin
* Struck through repros no longer work on HEAD.