================================================================== BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x9c/0x270 fs/hfsplus/bnode.c:32 Read of size 8 at addr ffff0000d1561ee0 by task syz.0.142/5025 CPU: 0 PID: 5025 Comm: syz.0.142 Not tainted 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:316 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:427 kasan_report+0xd4/0x130 mm/kasan/report.c:531 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:351 hfsplus_bnode_read+0x9c/0x270 fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x2ec/0x534 hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x1dc/0x3e4 fs/hfsplus/attributes.c:299 hfsplus_delete_attr+0x234/0x2c8 fs/hfsplus/attributes.c:345 __hfsplus_setxattr+0x3b8/0x1d3c fs/hfsplus/xattr.c:342 hfsplus_setxattr+0xdc/0x12c fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Allocated by task 5025: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x4c/0x80 mm/kasan/common.c:52 kasan_save_alloc_info+0x24/0x30 mm/kasan/generic.c:505 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xac/0xc4 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slab_common.c:936 [inline] __kmalloc+0xd8/0x1c4 mm/slab_common.c:949 kmalloc include/linux/slab.h:568 [inline] kzalloc include/linux/slab.h:699 [inline] __hfs_bnode_create+0xe4/0x6d4 fs/hfsplus/bnode.c:409 hfsplus_bnode_find+0x1f8/0xc60 fs/hfsplus/bnode.c:486 hfsplus_brec_find+0x134/0x4a0 fs/hfsplus/bfind.c:172 hfsplus_find_attr+0x13c/0x1e0 hfsplus_attr_exists+0x154/0x1c8 fs/hfsplus/attributes.c:182 __hfsplus_setxattr+0x384/0x1d3c fs/hfsplus/xattr.c:336 hfsplus_setxattr+0xdc/0x12c fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 insert_work+0x64/0x384 kernel/workqueue.c:1361 __queue_work+0xd48/0x136c kernel/workqueue.c:1520 queue_work_on+0xc0/0x16c kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] addr_event+0x30c/0x3f8 drivers/infiniband/core/roce_gid_mgmt.c:853 inetaddr_event+0x108/0x1b0 drivers/infiniband/core/roce_gid_mgmt.c:869 notifier_call_chain kernel/notifier.c:87 [inline] blocking_notifier_call_chain+0xf0/0x198 kernel/notifier.c:382 __inet_insert_ifa+0x8b0/0xa90 net/ipv4/devinet.c:569 inet_rtm_newaddr+0xe78/0x1748 net/ipv4/devinet.c:971 rtnetlink_rcv_msg+0x734/0xd9c net/core/rtnetlink.c:6150 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2493 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6168 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1337 netlink_sendmsg+0x844/0xb28 net/netlink/af_netlink.c:1859 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] __sys_sendto+0x3b8/0x508 net/socket.c:2153 __do_sys_sendto net/socket.c:2165 [inline] __se_sys_sendto net/socket.c:2161 [inline] __arm64_sys_sendto+0xd8/0xf8 net/socket.c:2161 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Second to last potentially related work creation: kasan_save_stack+0x40/0x70 mm/kasan/common.c:45 __kasan_record_aux_stack+0xcc/0xe8 mm/kasan/generic.c:486 kasan_record_aux_stack_noalloc+0x14/0x20 mm/kasan/generic.c:496 insert_work+0x64/0x384 kernel/workqueue.c:1361 __queue_work+0xd48/0x136c kernel/workqueue.c:1520 queue_work_on+0xc0/0x16c kernel/workqueue.c:1548 queue_work include/linux/workqueue.h:512 [inline] call_usermodehelper_exec+0x238/0x48c kernel/umh.c:437 kobject_uevent_env+0x654/0x874 lib/kobject_uevent.c:633 kobject_uevent+0x2c/0x3c lib/kobject_uevent.c:657 driver_register+0x29c/0x378 drivers/base/driver.c:254 usb_register_driver+0x1bc/0x3a0 drivers/usb/core/driver.c:1062 emi26_driver_init+0x28/0x34 drivers/usb/misc/emi26.c:249 do_one_initcall+0x260/0xacc init/main.c:1298 do_initcall_level+0x154/0x214 init/main.c:1371 do_initcalls+0x58/0xac init/main.c:1387 do_basic_setup+0x8c/0xa0 init/main.c:1406 kernel_init_freeable+0x3a4/0x528 init/main.c:1626 kernel_init+0x24/0x29c init/main.c:1514 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864 The buggy address belongs to the object at ffff0000d1561e00 which belongs to the cache kmalloc-256 of size 256 The buggy address is located 224 bytes inside of 256-byte region [ffff0000d1561e00, ffff0000d1561f00) The buggy address belongs to the physical page: page:00000000f85015c4 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x111560 head:00000000f85015c4 order:1 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 fffffc0003474000 dead000000000004 ffff0000c0002480 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d1561d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d1561e00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000d1561e80: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d1561f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d1561f80: 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 ffff635000009f07 KASAN: maybe wild-memory-access in range [0xffff1a800004f838-0xffff1a800004f83f] 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=00000001ab074000 [ffff635000009f07] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5025 Comm: syz.0.142 Tainted: G B 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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+0x64/0x2a4 mm/kasan/generic.c:189 lr : memcpy+0x48/0x90 mm/kasan/shadow.c:65 sp : ffff800021736df0 x29: ffff800021736df0 x28: 0000000000000001 x27: 0000000040000000 x26: 1ffff00002a9d86b x25: 0000000000000fff x24: 0000000000001000 x23: 0000000000000001 x22: ffff800009084cf0 x21: ffff800021736f00 x20: ffff1a800004f83f x19: 0000000000000001 x18: 1fffe0003679cb76 x17: 0000000000000000 x16: ffff80001226f180 x15: 0000000000000000 x14: 00000000000000ff x13: ffff0000c6fe9bc0 x12: 0000000000000001 x11: 1fffe35000009f07 x10: 1fffe35000009f07 x9 : ffffffffffffffff x8 : ffff635000009f07 x7 : 0000000000000001 x6 : 00000000000000ff x5 : ffff800021736f22 x4 : ffff0000e163900c x3 : ffff800009084cf0 x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff1a800004f83f 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+0x64/0x2a4 mm/kasan/generic.c:189 memcpy+0x48/0x90 mm/kasan/shadow.c:65 memcpy_from_page include/linux/highmem.h:393 [inline] hfsplus_bnode_read+0x134/0x270 fs/hfsplus/bnode.c:32 hfsplus_bnode_dump+0x2ec/0x534 hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229 __hfsplus_delete_attr+0x1dc/0x3e4 fs/hfsplus/attributes.c:299 hfsplus_delete_attr+0x234/0x2c8 fs/hfsplus/attributes.c:345 __hfsplus_setxattr+0x3b8/0x1d3c fs/hfsplus/xattr.c:342 hfsplus_setxattr+0xdc/0x12c fs/hfsplus/xattr.c:434 hfsplus_trusted_setxattr+0x54/0x6c fs/hfsplus/xattr_trusted.c:30 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_setxattr fs/xattr.c:652 [inline] __se_sys_setxattr fs/xattr.c:648 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:648 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 5400014c b4000b8c aa2a03e9 8b0b0129 (3940010a) ---[ end trace 0000000000000000 ]--- ---------------- 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