loop0: detected capacity change from 0 to 1024 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 ffff888032b128c0 by task syz.0.0/5340 CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller #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:378 [inline] print_report+0xca/0x230 mm/kasan/report.c:480 kasan_report+0x118/0x150 mm/kasan/report.c:593 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_unlink+0x359/0x730 fs/hfsplus/dir.c:385 vfs_unlink+0x391/0x650 fs/namei.c:4595 do_unlinkat+0x350/0x560 fs/namei.c:4659 __do_sys_unlinkat fs/namei.c:4700 [inline] __se_sys_unlinkat fs/namei.c:4693 [inline] __x64_sys_unlinkat+0xd3/0xf0 fs/namei.c:4693 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 RIP: 0033:0x7f563938e9a9 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:00007f563a155038 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007f56395b5fa0 RCX: 00007f563938e9a9 RDX: 0000000000000000 RSI: 0000200000000c40 RDI: ffffffffffffff9c RBP: 00007f5639410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f56395b5fa0 R15: 00007ffe73226348 Allocated by task 5340: 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_getxattr+0x301/0x7e0 fs/hfsplus/xattr.c:520 hfsplus_getxattr+0x10d/0x180 fs/hfsplus/xattr.c:588 __vfs_getxattr+0x3f4/0x430 fs/xattr.c:423 cap_inode_need_killpriv+0x45/0x60 security/commoncap.c:331 security_inode_need_killpriv+0x89/0x270 security/security.c:2638 dentry_needs_remove_privs fs/inode.c:2172 [inline] file_remove_privs_flags+0x297/0x5f0 fs/inode.c:2203 __generic_file_write_iter+0x79/0x230 mm/filemap.c:4206 generic_file_write_iter+0x10f/0x540 mm/filemap.c:4255 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x548/0xa90 fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798 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 ffff888032b12800 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 [ffff888032b12800, ffff888032b12898) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x32b12 flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000000 ffff88801a4413c0 ffffea0000cd1c00 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 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (swapper/0), ts 8430569423, 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] __kmalloc_cache_node_noprof+0x29a/0x3d0 mm/slub.c:4367 kmalloc_node_noprof include/linux/slab.h:928 [inline] alloc_worker kernel/workqueue.c:2647 [inline] init_rescuer+0x176/0x570 kernel/workqueue.c:5567 __alloc_workqueue+0x176b/0x1b70 kernel/workqueue.c:5747 alloc_workqueue+0xd4/0x210 kernel/workqueue.c:5788 padata_alloc+0xc1/0x370 kernel/padata.c:1034 pcrypt_init_padata+0x27/0x100 crypto/pcrypt.c:331 pcrypt_init+0x65/0xf0 crypto/pcrypt.c:356 do_one_initcall+0x233/0x820 init/main.c:1274 do_initcall_level+0x137/0x1f0 init/main.c:1336 do_initcalls+0x69/0xd0 init/main.c:1352 page_owner free stack trace missing Memory state around the buggy address: ffff888032b12780: 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888032b12800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888032b12880: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff888032b12900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888032b12980: 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc fc ==================================================================