KASAN: slab-out-of-bounds Read in hfsplus

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-5.15	KASAN: slab-out-of-bounds Read in hfsplus_uni2asc origin:upstream	C		error	230	6h54m	405d	0/3	upstream: reported C repro on 2023/03/16 05:02
linux-4.19	KASAN: slab-out-of-bounds Read in hfsplus_uni2asc hfsplus	C		error	2	490d	514d	0/1	upstream: reported C repro on 2022/11/27 08:50
upstream	KASAN: slab-out-of-bounds Read in hfsplus_uni2asc hfs	C	error		1066	1d03h	513d	0/26	upstream: reported C repro on 2022/11/28 10:02
linux-6.1	KASAN: slab-out-of-bounds Read in hfsplus_uni2asc origin:upstream	C			124	2d02h	401d	0/3	upstream: reported C repro on 2023/03/19 19:39

Created	Duration	User	Patch	Repo	Result
2023/03/02 01:51	27m	bisect fix		linux-4.14.y	job log (0) log
2023/01/29 22:05	25m	bisect fix		linux-4.14.y	job log (0) log

Created

Duration

User

Patch

Repo

Result

2023/03/02 01:51

27m

bisect fix

linux-4.14.y

job log (0) log

2023/01/29 22:05

25m

bisect fix

linux-4.14.y

job log (0) log

================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0x82a/0x910 fs/hfsplus/unicode.c:179 Read of size 2 at addr ffff8880b323b9cc by task syz-executor841/7983 CPU: 1 PID: 7983 Comm: syz-executor841 Not tainted 4.14.300-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load2_noabort+0x68/0x70 mm/kasan/report.c:428 hfsplus_uni2asc+0x82a/0x910 fs/hfsplus/unicode.c:179 hfsplus_readdir+0x6e4/0xd70 fs/hfsplus/dir.c:209 iterate_dir+0x1a0/0x5e0 fs/readdir.c:52 SYSC_getdents64 fs/readdir.c:358 [inline] SyS_getdents64+0x125/0x230 fs/readdir.c:339 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 Allocated by task 7983: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 __do_kmalloc mm/slab.c:3720 [inline] __kmalloc+0x15a/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] hfsplus_find_init+0x91/0x220 fs/hfsplus/bfind.c:21 hfsplus_readdir+0x1dc/0xd70 fs/hfsplus/dir.c:146 iterate_dir+0x1a0/0x5e0 fs/readdir.c:52 SYSC_getdents64 fs/readdir.c:358 [inline] SyS_getdents64+0x125/0x230 fs/readdir.c:339 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8880b323b5c0 which belongs to the cache kmalloc-2048 of size 2048 The buggy address is located 1036 bytes inside of 2048-byte region [ffff8880b323b5c0, ffff8880b323bdc0) The buggy address belongs to the page: page:ffffea0002cc8e80 count:1 mapcount:0 mapping:ffff8880b323a4c0 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff8880b323a4c0 0000000000000000 0000000100000003 raw: ffffea0002cd9420 ffff88813fe64948 ffff88813fe74c40 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880b323b880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880b323b900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880b323b980: 00 00 00 00 00 00 00 00 00 04 fc fc fc fc fc fc ^ ffff8880b323ba00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880b323ba80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2022/12/04 03:31	linux-4.14.y	179ef7fe8677	e080de16	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-4-14	KASAN: slab-out-of-bounds Read in hfsplus_uni2asc

Crashes (1):

Assets (help?)