IPv6 header not found
==================================================================
BUG: KASAN: slab-out-of-bounds in hfs_asc2mac+0x62a/0x680 fs/hfs/trans.c:133
Write of size 1 at addr ffff8880a1ac11ce by task syz-executor.5/9982

CPU: 1 PID: 9982 Comm: syz-executor.5 Not tainted 4.14.302-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_store1_noabort+0x68/0x70 mm/kasan/report.c:432
 hfs_asc2mac+0x62a/0x680 fs/hfs/trans.c:133
 hfs_cat_build_key+0xbe/0x1a0 fs/hfs/catalog.c:28
 hfs_lookup+0x18c/0x2b0 fs/hfs/dir.c:31
 lookup_real fs/namei.c:1555 [inline]
 __lookup_hash fs/namei.c:1575 [inline]
 __lookup_hash+0x1bb/0x270 fs/namei.c:1563
 filename_create+0x156/0x3f0 fs/namei.c:3677
 user_path_create fs/namei.c:3734 [inline]
 SYSC_mkdirat fs/namei.c:3866 [inline]
 SyS_mkdirat+0x95/0x270 fs/namei.c:3858
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fed25b370a9
RSP: 002b:00007fed240a9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fed25c56f80 RCX: 00007fed25b370a9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007fed25b92ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe5c4e6fcf R14: 00007fed240a9300 R15: 0000000000022000

Allocated by task 9982:
 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]
 hfs_find_init+0x91/0x220 fs/hfs/bfind.c:21
 hfs_lookup+0xea/0x2b0 fs/hfs/dir.c:28
 lookup_real fs/namei.c:1555 [inline]
 __lookup_hash fs/namei.c:1575 [inline]
 __lookup_hash+0x1bb/0x270 fs/namei.c:1563
 filename_create+0x156/0x3f0 fs/namei.c:3677
 user_path_create fs/namei.c:3734 [inline]
 SYSC_mkdirat fs/namei.c:3866 [inline]
 SyS_mkdirat+0x95/0x270 fs/namei.c:3858
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3

Freed by task 9043:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xc9/0x250 mm/slab.c:3815
 aa_free_file_ctx security/apparmor/include/file.h:76 [inline]
 apparmor_file_free_security+0x7e/0xb0 security/apparmor/lsm.c:441
 security_file_free+0x42/0x80 security/security.c:879
 put_filp+0x23/0x90 fs/file_table.c:312
 path_openat+0x6ce/0x2970 fs/namei.c:3583
 do_filp_open+0x179/0x3c0 fs/namei.c:3605
 do_open_execat+0xd3/0x450 fs/exec.c:849
 do_execveat_common+0x71f/0x2030 fs/exec.c:1755
 do_execve+0x33/0x50 fs/exec.c:1877
 call_usermodehelper_exec_async+0x2ed/0x510 kernel/umh.c:109
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406

The buggy address belongs to the object at ffff8880a1ac1180
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 78 bytes inside of
 96-byte region [ffff8880a1ac1180, ffff8880a1ac11e0)
The buggy address belongs to the page:
page:ffffea000286b040 count:1 mapcount:0 mapping:ffff8880a1ac1000 index:0x0
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffff8880a1ac1000 0000000000000000 0000000100000020
raw: ffffea0002847560 ffffea0002843120 ffff88813fe744c0 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a1ac1080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
 ffff8880a1ac1100: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
>ffff8880a1ac1180: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc
                                              ^
 ffff8880a1ac1200: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
 ffff8880a1ac1280: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc
==================================================================
IPv6 header not found