and is ignored by this kernel. Remove the mand option from the mount to silence this warning. ======================================================= ================================================================== BUG: KASAN: slab-out-of-bounds in hfs_asc2mac+0x467/0x9a0 fs/hfs/trans.c:133 Write of size 1 at addr ffff88801d5631ce by task syz-executor151/3630 CPU: 0 PID: 3630 Comm: syz-executor151 Not tainted 6.1.0-rc6-syzkaller-00308-g644e9524388a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 hfs_asc2mac+0x467/0x9a0 fs/hfs/trans.c:133 hfs_cat_build_key+0x92/0x170 fs/hfs/catalog.c:28 hfs_lookup+0x1ab/0x2c0 fs/hfs/dir.c:31 __lookup_hash+0x115/0x240 fs/namei.c:1601 filename_create+0x25f/0x4f0 fs/namei.c:3808 do_mknodat+0x182/0x6b0 fs/namei.c:3952 __do_sys_mknod fs/namei.c:3998 [inline] __se_sys_mknod fs/namei.c:3996 [inline] __x64_sys_mknod+0x8a/0xa0 fs/namei.c:3996 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: 0033:0x7f7f4b9f8a79 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb4441a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f4b9f8a79 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200002c0 RBP: 00007f7f4b9b8080 R08: 0000000000000241 R09: 0000000000000000 R10: 00007ffeb4441930 R11: 0000000000000246 R12: 00007f7f4b9b8110 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 3630: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0xaf/0x1a0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] hfs_find_init+0x8b/0x1e0 fs/hfs/bfind.c:21 hfs_lookup+0x105/0x2c0 fs/hfs/dir.c:28 __lookup_hash+0x115/0x240 fs/namei.c:1601 filename_create+0x25f/0x4f0 fs/namei.c:3808 do_mknodat+0x182/0x6b0 fs/namei.c:3952 __do_sys_mknod fs/namei.c:3998 [inline] __se_sys_mknod fs/namei.c:3996 [inline] __x64_sys_mknod+0x8a/0xa0 fs/namei.c:3996 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 The buggy address belongs to the object at ffff88801d563180 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 78 bytes inside of 96-byte region [ffff88801d563180, ffff88801d5631e0) The buggy address belongs to the physical page: page:ffffea00007558c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1d563 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea000087d900 dead000000000005 ffff888012841780 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 3005, tgid 3005 (udevd), ts 27091868178, free_ts 27088146446 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x742/0x7c0 mm/page_alloc.c:4291 __alloc_pages+0x259/0x560 mm/page_alloc.c:5558 alloc_slab_page+0x70/0xf0 mm/slub.c:1794 allocate_slab+0x5e/0x4b0 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0x782/0xe20 mm/slub.c:3180 __slab_alloc mm/slub.c:3279 [inline] slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x252/0x310 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc+0x9e/0x1a0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] tomoyo_encode2 security/tomoyo/realpath.c:45 [inline] tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80 tomoyo_realpath_from_path+0x5ae/0x5f0 security/tomoyo/realpath.c:283 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path2_perm+0x322/0xb00 security/tomoyo/file.c:922 tomoyo_path_rename+0x194/0x1e0 security/tomoyo/tomoyo.c:287 security_path_rename+0x161/0x230 security/security.c:1203 do_renameat2+0x768/0x1370 fs/namei.c:4917 __do_sys_rename fs/namei.c:4976 [inline] __se_sys_rename fs/namei.c:4974 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:4974 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 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1459 [inline] free_pcp_prepare+0x80c/0x8f0 mm/page_alloc.c:1509 free_unref_page_prepare mm/page_alloc.c:3387 [inline] free_unref_page+0x7d/0x5f0 mm/page_alloc.c:3483 __vunmap+0x877/0x9e0 mm/vmalloc.c:2713 free_work+0x66/0x90 mm/vmalloc.c:97 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Memory state around the buggy address: ffff88801d563080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88801d563100: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88801d563180: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff88801d563200: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff88801d563280: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ==================================================================