hfsplus: request for non-existent node 58112 in B*Tree hfsplus: request for non-existent node 58112 in B*Tree ================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x84/0x21c fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff0000c18226c0 by task syz.0.628/7078 CPU: 0 PID: 7078 Comm: syz.0.628 Not tainted 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 Call trace: dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106 print_address_description+0x78/0x30c mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0xec/0x15c mm/kasan/report.c:451 __asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309 hfsplus_bnode_read+0x84/0x21c fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x26c/0x37c fs/hfsplus/bnode.c:-1 hfsplus_brec_remove+0x3cc/0x4a0 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x198/0x350 fs/hfsplus/attributes.c:299 hfsplus_delete_all_attrs+0x204/0x33c fs/hfsplus/attributes.c:378 hfsplus_delete_cat+0x844/0xbb0 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x2a0/0x664 fs/hfsplus/dir.c:385 hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547 vfs_rename+0x954/0xdcc fs/namei.c:4832 do_renameat2+0x74c/0xcdc fs/namei.c:4985 __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5015 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 7078: 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 mm/kasan/common.c:513 [inline] __kasan_kmalloc+0xb0/0xf0 mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc+0x298/0x44c mm/slub.c:4407 kmalloc include/linux/slab.h:609 [inline] kzalloc include/linux/slab.h:735 [inline] __hfs_bnode_create+0xe4/0x84c fs/hfsplus/bnode.c:416 hfsplus_bnode_find+0x1f8/0xbcc fs/hfsplus/bnode.c:497 hfsplus_brec_find+0x128/0x448 fs/hfsplus/bfind.c:172 hfsplus_find_attr fs/hfsplus/attributes.c:160 [inline] hfsplus_delete_all_attrs+0x1e0/0x33c fs/hfsplus/attributes.c:371 hfsplus_delete_cat+0x844/0xbb0 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x2a0/0x664 fs/hfsplus/dir.c:385 hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547 vfs_rename+0x954/0xdcc fs/namei.c:4832 do_renameat2+0x74c/0xcdc fs/namei.c:4985 __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5015 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Last potentially related work creation: kasan_save_stack+0x38/0x68 mm/kasan/common.c:38 kasan_record_aux_stack+0xcc/0x114 mm/kasan/generic.c:348 insert_work+0x64/0x388 kernel/workqueue.c:1366 __queue_work+0xb30/0x1054 kernel/workqueue.c:1532 queue_work_on+0xc4/0x17c kernel/workqueue.c:1559 queue_work include/linux/workqueue.h:512 [inline] addr_event+0x2f8/0x3f0 drivers/infiniband/core/roce_gid_mgmt.c:853 inetaddr_event+0xe8/0x148 drivers/infiniband/core/roce_gid_mgmt.c:869 notifier_call_chain kernel/notifier.c:83 [inline] blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:318 __inet_insert_ifa+0x888/0xa4c net/ipv4/devinet.c:568 inet_rtm_newaddr+0xd44/0x1540 net/ipv4/devinet.c:967 rtnetlink_rcv_msg+0x9d4/0xd04 net/core/rtnetlink.c:5650 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2489 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5668 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x60c/0x89c net/netlink/af_netlink.c:1337 netlink_sendmsg+0x6e8/0x9cc net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] ____sys_sendmsg+0x61c/0x920 net/socket.c:2436 ___sys_sendmsg+0x1d0/0x240 net/socket.c:2490 __sys_sendmsg net/socket.c:2519 [inline] __do_sys_sendmsg net/socket.c:2528 [inline] __se_sys_sendmsg net/socket.c:2526 [inline] __arm64_sys_sendmsg+0x1a8/0x254 net/socket.c:2526 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000c1822600 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 192 bytes inside of 256-byte region [ffff0000c1822600, ffff0000c1822700) The buggy address belongs to the page: page:00000000dd41cbd2 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101822 head:00000000dd41cbd2 order:1 compound_mapcount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 fffffc0003221700 0000000500000002 ffff0000c0002480 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000c1822580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c1822600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000c1822680: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000c1822700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000c1822780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== Unable to handle kernel paging request at virtual address ffff63900000ddff Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000001af592000 [ffff63900000ddff] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 7078 Comm: syz.0.628 Tainted: G B 5.15.180-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : bytes_is_nonzero mm/kasan/generic.c:85 [inline] pc : memory_is_nonzero mm/kasan/generic.c:102 [inline] pc : memory_is_poisoned_n mm/kasan/generic.c:128 [inline] pc : memory_is_poisoned mm/kasan/generic.c:159 [inline] pc : check_region_inline mm/kasan/generic.c:180 [inline] pc : kasan_check_range+0x74/0x2b0 mm/kasan/generic.c:189 lr : memcpy+0x90/0xe8 mm/kasan/shadow.c:65 sp : ffff800020717230 x29: ffff800020717230 x28: 1fffe000183044c3 x27: ffff800020717300 x26: 0000000040000000 x25: 1ffff00002766ba8 x24: dfff800000000000 x23: ffff800016783000 x22: ffff800008ebb4fc x21: ffff800020717320 x20: ffff1c800006efff x19: 0000000000000001 x18: 0000000000000000 x17: 0000000000000002 x16: ffff800008ebd2b0 x15: 00000000000000ff x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000000001 x11: 1fffe3900000ddff x10: 1fffe3900000ddff x9 : ffffffffffffffff x8 : ffff63900000ddff x7 : 0000000000000000 x6 : 00000000000000ff x5 : ffff800020717342 x4 : ffff0000edecf00c x3 : ffff800008ebb4fc x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff1c800006efff Call trace: bytes_is_nonzero mm/kasan/generic.c:84 [inline] memory_is_nonzero mm/kasan/generic.c:102 [inline] memory_is_poisoned_n mm/kasan/generic.c:128 [inline] memory_is_poisoned mm/kasan/generic.c:159 [inline] check_region_inline mm/kasan/generic.c:180 [inline] kasan_check_range+0x74/0x2b0 mm/kasan/generic.c:189 memcpy+0x90/0xe8 mm/kasan/shadow.c:65 hfsplus_bnode_read+0x10c/0x21c fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x26c/0x37c fs/hfsplus/bnode.c:-1 hfsplus_brec_remove+0x3cc/0x4a0 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x198/0x350 fs/hfsplus/attributes.c:299 hfsplus_delete_all_attrs+0x204/0x33c fs/hfsplus/attributes.c:378 hfsplus_delete_cat+0x844/0xbb0 fs/hfsplus/catalog.c:425 hfsplus_unlink+0x2a0/0x664 fs/hfsplus/dir.c:385 hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547 vfs_rename+0x954/0xdcc fs/namei.c:4832 do_renameat2+0x74c/0xcdc fs/namei.c:4985 __do_sys_renameat2 fs/namei.c:5018 [inline] __se_sys_renameat2 fs/namei.c:5015 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5015 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 5400014c b4000b8c aa2a03e9 8b0b0129 (3940010a) ---[ end trace a0334f7603971773 ]--- ---------------- Code disassembly (best guess): 0: 5400014c b.gt 0x28 4: b4000b8c cbz x12, 0x174 8: aa2a03e9 mvn x9, x10 c: 8b0b0129 add x9, x9, x11 * 10: 3940010a ldrb w10, [x8] <-- trapping instruction