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

Date	Name	Commit	Repro	Result
2023/07/09	upstream (ToT)	1c7873e33645	C	[report] UBSAN: array-index-out-of-bounds in xtSearch

Date

Name

Commit

Repro

Result

2023/07/09

upstream (ToT)

1c7873e33645

[report] UBSAN: array-index-out-of-bounds in xtSearch

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	UBSAN: array-index-out-of-bounds in xtSearch jfs	15	syz, C	unreliable	done	122	1066d	1484d	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	syz, C		done	98	607d	1086d	3/3	fixed on 2025/05/02 07:04
linux-5.15	UBSAN: array-index-out-of-bounds in xtSearch	15				17	1278d	1321d	0/3	auto-obsoleted due to no activity on 2023/08/22 15:17
linux-5.15	UBSAN: array-index-out-of-bounds in xtSearch (2) origin:lts-only	15	syz, C		done	115	590d	1086d	3/3	fixed on 2025/05/02 06:39

================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_xtree.c:360:4 index 19 is out of range for type 'xad_t[18]' (aka 'struct xad[18]') CPU: 0 PID: 3712 Comm: syz-executor194 Not tainted 6.1.38-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 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:360 xtLookup+0x2c0/0x8e0 fs/jfs/jfs_xtree.c:152 jfs_get_block+0x2e5/0xe50 fs/jfs/inode.c:218 do_mpage_readpage+0x8d2/0x2040 fs/mpage.c:208 mpage_readahead+0x450/0x920 fs/mpage.c:361 read_pages+0x17f/0x830 mm/readahead.c:161 page_cache_ra_unbounded+0x68b/0x7b0 mm/readahead.c:270 filemap_readahead mm/filemap.c:2557 [inline] filemap_get_pages mm/filemap.c:2598 [inline] filemap_read+0xaad/0x31d0 mm/filemap.c:2676 call_read_iter include/linux/fs.h:2199 [inline] generic_file_splice_read+0x23c/0x630 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x408/0xbd0 fs/splice.c:865 do_splice_direct+0x27f/0x3c0 fs/splice.c:974 do_sendfile+0x61c/0xff0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64+0x178/0x1e0 fs/read_write.c:1309 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: 0033:0x7f6725857b89 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 15 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f67257f21f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f67258e57e8 RCX: 00007f6725857b89 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000009 RBP: 00007f67258e57e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201004 R11: 0000000000000246 R12: 00007f67258e57ec R13: 00007ffe66064edf R14: 00007f67257f2300 R15: 0000000000022000 </TASK> ================================================================================

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/07/09 02:42	linux-6.1.y	61fd484b2cf6	668cb1fa	.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 xtSearch
2023/05/22 13:56	linux-6.1.y	fa74641fb6b9	4bce1a3e	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan	UBSAN: array-index-out-of-bounds in xtSearch
2023/04/22 19:34	linux-6.1.y	f17b0ab65d17	2b32bd34	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-1-kasan-arm64	UBSAN: array-index-out-of-bounds in xtSearch

Crashes (3):

Assets (help?)