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

ID	Workflow	Result	Correct	Bug	Created	Started	Finished	Revision	Error
173ba62f-6375-4af9-a837-21adaf8fd70d	assessment-security	DenialOfService: ✅ Exploitable: ✅ FilesystemTrigger: ✅ NetworkTrigger: ❌ PeripheralTrigger: ✅ RemoteTrigger: ❌ Unprivileged: ❌ UserNamespace: ❌ VMGuestTrigger: ❌ VMHostTrigger: ❌	❓	UBSAN: array-index-out-of-bounds in diAllocBit	2026/05/19 00:10	2026/05/19 00:10	2026/05/19 01:05	9f74d39908454b73546eaf1b8211b48b66e5c0fe
f056ecda-3f37-456f-adf9-cfde20afaaf1	repro		❓	UBSAN: array-index-out-of-bounds in diAllocBit	2026/03/08 14:16	2026/03/08 14:16	2026/03/08 14:25	31e9c887f7dc24e04b3ca70d0d54fc34141844b0

Title	Replies (including bot)	Last reply
[syzbot] [jfs?] UBSAN: array-index-out-of-bounds in diAllocBit	0 (2)	2026/06/21 14:20
[PATCH] jfs: fix array-index-out-of-bounds in diAllocBit()	1 (1)	2025/12/31 03:31

Title

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Last reply

[syzbot] [jfs?] UBSAN: array-index-out-of-bounds in diAllocBit

0 (2)

2026/06/21 14:20

[PATCH] jfs: fix array-index-out-of-bounds in diAllocBit()

1 (1)

2025/12/31 03:31

loop0: detected capacity change from 0 to 32768 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:2105:2 index 8592359 is out of range for type 'struct iagctl[128]' CPU: 0 UID: 0 PID: 6143 Comm: syz.0.211 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 ubsan_epilogue+0xa/0x30 lib/ubsan.c:233 __ubsan_handle_out_of_bounds+0xe8/0xf0 lib/ubsan.c:455 diAllocBit+0xb88/0xd30 fs/jfs/jfs_imap.c:2105 diAllocIno fs/jfs/jfs_imap.c:1844 [inline] diAllocAG+0x13f7/0x1de0 fs/jfs/jfs_imap.c:1676 diAlloc+0x1e2/0x16b0 fs/jfs/jfs_imap.c:1590 ialloc+0x8c/0x8e0 fs/jfs/jfs_inode.c:56 jfs_create+0x1d8/0xae0 fs/jfs/namei.c:93 lookup_open fs/namei.c:4508 [inline] open_last_lookups fs/namei.c:4608 [inline] path_openat+0x133a/0x3830 fs/namei.c:4856 do_file_open+0x23e/0x4a0 fs/namei.c:4888 do_sys_openat2+0x115/0x200 fs/open.c:1395 do_sys_open fs/open.c:1401 [inline] __do_sys_open fs/open.c:1409 [inline] __se_sys_open fs/open.c:1405 [inline] __x64_sys_open+0x11e/0x150 fs/open.c:1405 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc75779ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc758713028 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00007fc757a15fa0 RCX: 00007fc75779ce59 RDX: 0000000000000292 RSI: 0000000000064842 RDI: 0000200000000080 RBP: 00007fc757832e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc757a16038 R14: 00007fc757a15fa0 R15: 00007ffc5cf2ad48 </TASK> ---[ end trace ]---

Crashes (51):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	Assets (help?)	Manager	Title
2026/06/21 14:19	upstream	390d73adf896	43bfcdb0	.config	console log	report	syz / log	[disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro #1 (corrupt fs)] [mounted in repro #2 (corrupt fs)] [mounted in repro #3 (clean fs)]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/06/22 02:24	upstream	8cd8cf7a07e5	43bfcdb0	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/06/21 10:31	upstream	390d73adf896	43bfcdb0	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/06/18 00:57	upstream	5b33fc6492a7	b62b3ded	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/06/17 17:21	upstream	5b33fc6492a7	b62b3ded	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/05/27 20:27	upstream	eb3f4b7426cf	cb4e87ff	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/05/26 04:28	upstream	e8c2f9fdadee	c69befb3	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/05/13 13:12	upstream	1d5dcaa3bd65	fec2a7ee	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/05/07 07:48	upstream	adc1e5c6203c	f250db59	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/05/02 02:16	upstream	6fe0be6dc7fa	753c55b9	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/26 18:01	upstream	897d54018cc9	9c2d0995	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/23 13:11	upstream	2a4c0c11c019	b10da5ec	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/21 12:52	upstream	c1f49dea2b8f	3f2e655b	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/15 21:13	upstream	1f5ffc672165	294e3145	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/14 20:51	upstream	d60bc1401583	362d1323	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/14 09:16	upstream	26ff969926a0	1a086e7c	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/14 09:10	upstream	26ff969926a0	1a086e7c	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/04/01 07:26	upstream	dbf00d8d23b4	fb8b2c26	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/29 12:23	upstream	cbfffcca2bf0	b5ceaad2	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/22 12:02	upstream	113ae7b4decc	5b92003d	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/22 01:05	upstream	a0c83177734a	5b92003d	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/21 19:19	upstream	a0c83177734a	5b92003d	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/19 06:51	upstream	8a30aeb0d1b4	0199f9a1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/15 17:17	upstream	267594792a71	ee8d34d6	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/15 11:18	upstream	267594792a71	ee8d34d6	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/13 21:45	upstream	0257f64bdac7	351cb5cf	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/09 18:09	upstream	1f318b96cc84	176bead5	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/03/01 02:08	upstream	2f9339c052bd	43249bac	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/27 05:26	upstream	3f4a08e64442	a2f13f71	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/22 19:32	upstream	32a92f8c8932	6e7b5511	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/18 13:13	upstream	2961f841b025	39751c21	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/15 21:45	upstream	ca4ee40bf13d	1e62d198	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/12 21:50	upstream	37a93dd5c49b	504cb1bf	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/02/04 03:30	upstream	de0674d9bc69	42b01fab	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/28 09:25	upstream	1f97d9dcf536	3029c699	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/25 15:11	upstream	d91a46d6805a	40acda8a	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/16 13:27	upstream	54e82e93ca93	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/10 18:20	upstream	54e82e93ca93	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/09 20:42	upstream	54e82e93ca93	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2026/01/08 09:34	upstream	54e82e93ca93	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/30 10:09	upstream	8640b74557fc	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/28 10:30	upstream	d26143bb38e2	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/20 01:12	upstream	dd9b004b7ff3	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/12 09:17	upstream	d358e5254674	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/10 07:12	upstream	c9b47175e913	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/12/09 16:00	upstream	cb015814f8b6	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/11/30 14:35	upstream	6bda50f4333f	d1b870e1	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/11/25 15:49	upstream	ac3fd01e4c1e	bf6fe8fe	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/11/21 02:44	upstream	8e621c9a3375	280ea308	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/11/15 11:43	upstream	7a0892d2836e	f7988ea4	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit
2025/11/15 05:35	upstream	7a0892d2836e	f7988ea4	.config	console log	report		[disk image (non-bootable)] [vmlinux] [kernel image]	ci-snapshot-upstream-root	UBSAN: array-index-out-of-bounds in diAllocBit

Crashes (51):

Assets (help?)

2026/06/21 14:19

upstream