loop0: detected capacity change from 0 to 1024 hfsplus: request for non-existent node 393216 in B*Tree hfsplus: request for non-existent node 393216 in B*Tree ================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x144/0x150 fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff888017b25ac0 by task syz-executor116/3629 CPU: 0 PID: 3629 Comm: syz-executor116 Not tainted 6.1.0-syzkaller #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+0xd1/0x138 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x15e/0x45d mm/kasan/report.c:395 kasan_report+0xbf/0x1f0 mm/kasan/report.c:495 hfsplus_bnode_read+0x144/0x150 fs/hfsplus/bnode.c:32 hfsplus_bnode_read_u16 fs/hfsplus/bnode.c:45 [inline] hfsplus_bnode_dump+0x2c6/0x3a0 fs/hfsplus/bnode.c:321 hfsplus_brec_remove+0x3db/0x4f0 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x217/0x380 fs/hfsplus/attributes.c:299 hfsplus_delete_all_attrs+0x25d/0x2d0 fs/hfsplus/attributes.c:378 hfsplus_delete_cat+0x86a/0xe40 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x1e3/0x830 fs/hfsplus/dir.c:385 vfs_unlink+0x355/0x930 fs/namei.c:4252 do_unlinkat+0x3d0/0x660 fs/namei.c:4320 __do_sys_unlink fs/namei.c:4368 [inline] __se_sys_unlink fs/namei.c:4366 [inline] __x64_sys_unlink+0xca/0x110 fs/namei.c:4366 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f293f94c809 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:00007fffa3254b78 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f293f94c809 RDX: 00007f293f90ae83 RSI: 0000000000000000 RDI: 0000000020000000 RBP: 00007f293f90c0a0 R08: 00000000000005f2 R09: 0000000000000000 R10: 00007fffa3254a40 R11: 0000000000000246 R12: 00007f293f90c130 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 3629: kasan_save_stack+0x22/0x40 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] ____kasan_kmalloc mm/kasan/common.c:330 [inline] __kasan_kmalloc+0xa5/0xb0 mm/kasan/common.c:380 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:955 [inline] __kmalloc+0x5a/0xd0 mm/slab_common.c:968 kmalloc include/linux/slab.h:558 [inline] kzalloc include/linux/slab.h:689 [inline] __hfs_bnode_create+0x107/0x820 fs/hfsplus/bnode.c:409 hfsplus_bnode_find+0x408/0xc50 fs/hfsplus/bnode.c:486 hfsplus_brec_find+0x2b3/0x510 fs/hfsplus/bfind.c:183 hfsplus_find_attr fs/hfsplus/attributes.c:160 [inline] hfsplus_delete_all_attrs+0x236/0x2d0 fs/hfsplus/attributes.c:371 hfsplus_delete_cat+0x86a/0xe40 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x1e3/0x830 fs/hfsplus/dir.c:385 vfs_unlink+0x355/0x930 fs/namei.c:4252 do_unlinkat+0x3d0/0x660 fs/namei.c:4320 __do_sys_unlink fs/namei.c:4368 [inline] __se_sys_unlink fs/namei.c:4366 [inline] __x64_sys_unlink+0xca/0x110 fs/namei.c:4366 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff888017b25a00 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 0 bytes to the right of 192-byte region [ffff888017b25a00, ffff888017b25ac0) The buggy address belongs to the physical page: page:ffffea00005ec940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x17b25 flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 ffffea00005e7480 dead000000000004 ffff888012041a00 raw: 0000000000000000 0000000080100010 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 1549796022, free_ts 0 prep_new_page mm/page_alloc.c:2539 [inline] get_page_from_freelist+0x10b5/0x2d50 mm/page_alloc.c:4291 __alloc_pages+0x1cb/0x5b0 mm/page_alloc.c:5558 alloc_page_interleave+0x1e/0x200 mm/mempolicy.c:2118 alloc_pages+0x233/0x270 mm/mempolicy.c:2280 alloc_slab_page mm/slub.c:1794 [inline] allocate_slab+0x25f/0x350 mm/slub.c:1939 new_slab mm/slub.c:1992 [inline] ___slab_alloc+0xa91/0x1400 mm/slub.c:3180 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3279 slab_alloc_node mm/slub.c:3364 [inline] __kmem_cache_alloc_node+0x199/0x3e0 mm/slub.c:3437 kmalloc_trace+0x26/0x60 mm/slab_common.c:1045 kmalloc include/linux/slab.h:553 [inline] kzalloc include/linux/slab.h:689 [inline] call_usermodehelper_setup+0x9b/0x340 kernel/umh.c:366 kobject_uevent_env+0xed3/0x1620 lib/kobject_uevent.c:614 kernel_add_sysfs_param kernel/params.c:816 [inline] param_sysfs_builtin kernel/params.c:851 [inline] param_sysfs_init+0x36b/0x43f kernel/params.c:970 do_one_initcall+0x141/0x780 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x6ff/0x788 init/main.c:1631 kernel_init+0x1e/0x1d0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 page_owner free stack trace missing Memory state around the buggy address: ffff888017b25980: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff888017b25a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888017b25a80: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888017b25b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888017b25b80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc 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