hfsplus: request for non-existent node 128 in B*Tree hfsplus: request for non-existent node 128 in B*Tree ================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0xc0/0x2a0 fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff8880367346c0 by task syz.0.0/5322 CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xd2/0x2b0 mm/kasan/report.c:521 kasan_report+0x118/0x150 mm/kasan/report.c:634 hfsplus_bnode_read+0xc0/0x2a0 fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x300/0x450 fs/hfsplus/bnode.c:-1 hfsplus_brec_remove+0x480/0x550 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x1d4/0x360 fs/hfsplus/attributes.c:299 hfsplus_delete_all_attrs+0x277/0x410 fs/hfsplus/attributes.c:378 hfsplus_delete_cat+0x92c/0xd20 fs/hfsplus/catalog.c:425 hfsplus_file_release+0x18f/0x3e0 fs/hfsplus/inode.c:235 __fput+0x449/0xa70 fs/file_table.c:465 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1f19f8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd48a8fbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 0000000000012494 RCX: 00007f1f19f8e929 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f1f1a1b7ba0 R08: 0000000000000001 R09: 0000001748a8febf R10: 00007f1f19dff02c R11: 0000000000000246 R12: 00007f1f1a1b5fac R13: 00007f1f1a1b5fa0 R14: ffffffffffffffff R15: 00007ffd48a8fce0 Allocated by task 5323: kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_noprof+0x27a/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] kzalloc_noprof include/linux/slab.h:1039 [inline] __hfs_bnode_create+0xf3/0x810 fs/hfsplus/bnode.c:415 hfsplus_bnode_find+0x224/0xd20 fs/hfsplus/bnode.c:492 hfsplus_brec_find+0x15c/0x500 fs/hfsplus/bfind.c:172 hfsplus_listxattr+0x43e/0xb80 fs/hfsplus/xattr.c:706 vfs_listxattr fs/xattr.c:493 [inline] listxattr+0x10a/0x2a0 fs/xattr.c:924 filename_listxattr fs/xattr.c:958 [inline] path_listxattrat+0x179/0x3a0 fs/xattr.c:988 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff888036734600 which belongs to the cache kmalloc-192 of size 192 The buggy address is located 40 bytes to the right of allocated 152-byte region [ffff888036734600, ffff888036734698) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x36734 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000000 ffff88801a4413c0 ffffea0000d128c0 dead000000000002 raw: 0000000000000000 0000000000100010 00000000f5000000 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 0x52c00(GFP_NOIO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 17445961182, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4959 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2419 alloc_slab_page mm/slub.c:2451 [inline] allocate_slab+0x8a/0x3b0 mm/slub.c:2619 new_slab mm/slub.c:2673 [inline] ___slab_alloc+0xbfc/0x1480 mm/slub.c:3859 __slab_alloc mm/slub.c:3949 [inline] __slab_alloc_node mm/slub.c:4024 [inline] slab_alloc_node mm/slub.c:4185 [inline] __do_kmalloc_node mm/slub.c:4327 [inline] __kmalloc_noprof+0x305/0x4f0 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] usb_alloc_urb+0x46/0x150 drivers/usb/core/urb.c:75 usb_internal_control_msg drivers/usb/core/message.c:96 [inline] usb_control_msg+0x118/0x3e0 drivers/usb/core/message.c:154 usb_get_string+0xa1/0x3c0 drivers/usb/core/message.c:844 usb_string_sub+0x76/0x420 drivers/usb/core/message.c:883 usb_string+0x38f/0x770 drivers/usb/core/message.c:988 usb_cache_string+0x80/0x130 drivers/usb/core/message.c:1030 usb_enumerate_device drivers/usb/core/hub.c:2508 [inline] usb_new_device+0x361/0x16c0 drivers/usb/core/hub.c:2633 register_root_hub+0x275/0x590 drivers/usb/core/hcd.c:994 usb_add_hcd+0xba1/0x1050 drivers/usb/core/hcd.c:2976 page_owner free stack trace missing Memory state around the buggy address: ffff888036734580: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff888036734600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888036734680: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888036734700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888036734780: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc ==================================================================