================================================================== BUG: KASAN: slab-out-of-bounds in hfs_asc2mac+0x68f/0x710 fs/hfs/trans.c:133 Write of size 1 at addr ffff88809c32e3ce by task syz-executor.3/10923 CPU: 1 PID: 10923 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_store1_noabort+0x88/0x90 mm/kasan/report.c:435 hfs_asc2mac+0x68f/0x710 fs/hfs/trans.c:133 hfs_cat_build_key+0xbe/0x1a0 fs/hfs/catalog.c:28 hfs_lookup+0x1c2/0x300 fs/hfs/dir.c:31 lookup_open+0x698/0x1a20 fs/namei.c:3214 do_last fs/namei.c:3327 [inline] path_openat+0x1804/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 audit: type=1804 audit(1673941289.687:8): pid=10940 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2822095424/syzkaller.jOMzEe/14/cgroup.controllers" dev="sda1" ino=14044 res=1 do_sys_open+0x3b3/0x520 fs/open.c:1085 ieee802154 phy0 wpan0: encryption failed: -22 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f13685770c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 ieee802154 phy1 wpan1: encryption failed: -22 RSP: 002b:00007f1366ae9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f1368696f80 RCX: 00007f13685770c9 RDX: 0000000000000001 RSI: 0000000020000040 RDI: ffffffffffffff9c RBP: 00007f13685d2ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2a28825f R14: 00007f1366ae9300 R15: 0000000000022000 Allocated by task 10923: __do_kmalloc mm/slab.c:3727 [inline] __kmalloc+0x15a/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] hfs_find_init+0x91/0x230 fs/hfs/bfind.c:21 hfs_lookup+0xfe/0x300 fs/hfs/dir.c:28 lookup_open+0x698/0x1a20 fs/namei.c:3214 do_last fs/namei.c:3327 [inline] path_openat+0x1804/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_sys_open+0x3b3/0x520 fs/open.c:1085 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 8220: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 ip6_dst_destroy+0x137/0x180 net/ipv6/route.c:377 dst_destroy+0x107/0x400 net/core/dst.c:132 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2584 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] rcu_process_callbacks+0x8ff/0x18b0 kernel/rcu/tree.c:2881 __do_softirq+0x265/0x980 kernel/softirq.c:292 The buggy address belongs to the object at ffff88809c32e380 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 78 bytes inside of 96-byte region [ffff88809c32e380, ffff88809c32e3e0) The buggy address belongs to the page: page:ffffea000270cb80 count:1 mapcount:0 mapping:ffff88813bff04c0 index:0x0 flags: 0xfff00000000100(slab) raw: 00fff00000000100 ffffea000251ac48 ffffea000273b608 ffff88813bff04c0 raw: 0000000000000000 ffff88809c32e000 0000000100000020 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88809c32e280: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88809c32e300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88809c32e380: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff88809c32e400: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ffff88809c32e480: 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc ================================================================== EXT4-fs error (device loop0): ext4_orphan_get:1256: comm syz-executor.0: bad orphan inode 20 ubi0: attaching mtd0 ext4_test_bit(bit=19, block=18) = 0 EXT4-fs (loop0): mounted filesystem without journal. Opts: nobarrier,noblock_validity,nolazytime,barrier=0x000000007fff0038,data_err=abort,resgid=0x0000000000000000,resuid=0x000000000000ee00,resgid=0x000000000000ee01,resgid=0x000000000000ee002,errors=continue ubi0: scanning is finished ubi0: empty MTD device detected