loop0: detected capacity change from 0 to 64 ================================================================== BUG: KASAN: slab-out-of-bounds in hfs_bnode_read+0x179/0x2a0 fs/hfs/bnode.c:37 Write of size 94 at addr ffff88801eaedb80 by task syz.0.270/5173 CPU: 1 PID: 5173 Comm: syz.0.270 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_address_description+0x63/0x3b0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x16b/0x1c0 mm/kasan/report.c:451 kasan_check_range+0x27e/0x290 mm/kasan/generic.c:189 memcpy+0x3c/0x60 mm/kasan/shadow.c:66 hfs_bnode_read+0x179/0x2a0 fs/hfs/bnode.c:37 hfs_bnode_read_key+0x16e/0x240 fs/hfs/bnode.c:73 hfs_brec_insert+0x7ef/0xbd0 fs/hfs/brec.c:159 hfs_cat_create+0x419/0xa60 fs/hfs/catalog.c:118 hfs_mkdir+0x68/0xe0 fs/hfs/dir.c:232 vfs_mkdir+0x3b6/0x590 fs/namei.c:4065 do_mkdirat+0x260/0x520 fs/namei.c:4090 __do_sys_mkdir fs/namei.c:4110 [inline] __se_sys_mkdir fs/namei.c:4108 [inline] __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4108 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f9b1e5c8de9 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:00007f9b1c432038 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007f9b1e7e1fa0 RCX: 00007f9b1e5c8de9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000300 RBP: 00007f9b1e64a2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9b1e7e1fa0 R15: 00007ffd94ca2b78 Allocated by task 5173: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x168/0x300 mm/slub.c:4407 kmalloc include/linux/slab.h:596 [inline] hfs_find_init+0x8c/0x1e0 fs/hfs/bfind.c:21 hfs_cat_create+0x17e/0xa60 fs/hfs/catalog.c:96 hfs_mkdir+0x68/0xe0 fs/hfs/dir.c:232 vfs_mkdir+0x3b6/0x590 fs/namei.c:4065 do_mkdirat+0x260/0x520 fs/namei.c:4090 __do_sys_mkdir fs/namei.c:4110 [inline] __se_sys_mkdir fs/namei.c:4108 [inline] __x64_sys_mkdir+0x6a/0x80 fs/namei.c:4108 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Last potentially related work creation: kasan_save_stack+0x36/0x60 mm/kasan/common.c:38 kasan_record_aux_stack+0xba/0x100 mm/kasan/generic.c:348 __call_rcu kernel/rcu/tree.c:3007 [inline] call_rcu+0x1c4/0xa70 kernel/rcu/tree.c:3087 tnode_free net/ipv4/fib_trie.c:495 [inline] replace+0x20c/0x580 net/ipv4/fib_trie.c:521 inflate net/ipv4/fib_trie.c:623 [inline] resize+0x1048/0x2730 net/ipv4/fib_trie.c:868 trie_rebalance net/ipv4/fib_trie.c:1101 [inline] fib_insert_node net/ipv4/fib_trie.c:1145 [inline] fib_insert_alias+0xd2b/0x1280 net/ipv4/fib_trie.c:1159 fib_table_insert+0x821/0x1f90 net/ipv4/fib_trie.c:1372 fib_magic net/ipv4/fib_frontend.c:1092 [inline] fib_add_ifaddr+0x47f/0x1730 net/ipv4/fib_frontend.c:1114 fib_inetaddr_event+0x12b/0x2b0 net/ipv4/fib_frontend.c:1428 notifier_call_chain kernel/notifier.c:83 [inline] blocking_notifier_call_chain+0x104/0x1b0 kernel/notifier.c:318 __inet_insert_ifa+0x9f8/0xc10 net/ipv4/devinet.c:568 inet_insert_ifa net/ipv4/devinet.c:575 [inline] inet_set_ifa net/ipv4/devinet.c:593 [inline] devinet_ioctl+0x128e/0x1ae0 net/ipv4/devinet.c:1196 inet_ioctl+0x32d/0x400 net/ipv4/af_inet.c:987 sock_do_ioctl+0x11d/0x5a0 net/socket.c:1140 sock_ioctl+0x47f/0x770 net/socket.c:1257 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff88801eaedb80 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 0 bytes inside of 96-byte region [ffff88801eaedb80, ffff88801eaedbe0) The buggy address belongs to the page: page:ffffea00007abb40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1eaed flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000200 0000000000000000 0000000b00000001 ffff888017441780 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 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, ts 7500496257, free_ts 7413540488 prep_new_page mm/page_alloc.c:2426 [inline] get_page_from_freelist+0x3b78/0x3d40 mm/page_alloc.c:4192 __alloc_pages+0x272/0x700 mm/page_alloc.c:5465 alloc_page_interleave+0x22/0x1c0 mm/mempolicy.c:2031 alloc_slab_page mm/slub.c:1775 [inline] allocate_slab mm/slub.c:1912 [inline] new_slab+0xbb/0x4b0 mm/slub.c:1975 ___slab_alloc+0x6f6/0xe10 mm/slub.c:3008 __slab_alloc mm/slub.c:3095 [inline] slab_alloc_node mm/slub.c:3186 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc_trace+0x1a0/0x290 mm/slub.c:3245 kmalloc include/linux/slab.h:591 [inline] kzalloc include/linux/slab.h:721 [inline] acpi_os_allocate_zeroed include/acpi/platform/aclinuxex.h:57 [inline] acpi_ds_call_control_method+0x268/0x7b0 drivers/acpi/acpica/dsmethod.c:517 acpi_ps_parse_aml+0x2db/0x950 drivers/acpi/acpica/psparse.c:503 acpi_ps_execute_method+0x740/0x870 drivers/acpi/acpica/psxface.c:190 acpi_ns_evaluate+0x636/0x9f0 drivers/acpi/acpica/nseval.c:205 acpi_evaluate_object+0x597/0xaf0 drivers/acpi/acpica/nsxfeval.c:354 acpi_evaluate_integer+0x117/0x2e0 drivers/acpi/utils.c:260 acpi_bus_get_status_handle drivers/acpi/bus.c:83 [inline] acpi_bus_get_status+0x176/0x3a0 drivers/acpi/bus.c:112 acpi_pci_link_set+0x5a9/0xa90 drivers/acpi/pci_link.c:353 acpi_pci_link_allocate drivers/acpi/pci_link.c:584 [inline] acpi_pci_link_allocate_irq+0x819/0xda0 drivers/acpi/pci_link.c:632 acpi_pci_irq_enable+0x2a7/0x970 drivers/acpi/pci_irq.c:424 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1340 [inline] free_pcp_prepare mm/page_alloc.c:1391 [inline] free_unref_page_prepare+0xc34/0xcf0 mm/page_alloc.c:3317 free_unref_page+0x95/0x2d0 mm/page_alloc.c:3396 __vunmap+0x8b3/0xa50 mm/vmalloc.c:2621 free_work+0x57/0x80 mm/vmalloc.c:95 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 Memory state around the buggy address: ffff88801eaeda80: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ffff88801eaedb00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc >ffff88801eaedb80: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc ^ ffff88801eaedc00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ffff88801eaedc80: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc ==================================================================