loop0: detected capacity change from 0 to 1024
hfsplus: request for non-existent node 65030 in B*Tree
hfsplus: request for non-existent node 65030 in B*Tree
==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x84/0x24c fs/hfsplus/bnode.c:32
Read of size 8 at addr ffff0000c084d4c0 by task syz-executor200/4028
CPU: 1 PID: 4028 Comm: syz-executor200 Not tainted 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
__kasan_report mm/kasan/report.c:434 [inline]
kasan_report+0x174/0x1e4 mm/kasan/report.c:451
__asan_report_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309
hfsplus_bnode_read+0x84/0x24c fs/hfsplus/bnode.c:32
hfsplus_bnode_dump+0x2c4/0x4cc
hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229
__hfsplus_delete_attr+0x1e0/0x3ec fs/hfsplus/attributes.c:299
hfsplus_delete_all_attrs+0x214/0x348 fs/hfsplus/attributes.c:378
hfsplus_delete_cat+0x9a4/0xd6c fs/hfsplus/catalog.c:425
hfsplus_unlink+0x2c0/0x6a0 fs/hfsplus/dir.c:385
hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547
vfs_rename+0xac8/0xe04 fs/namei.c:4832
do_renameat2+0xa00/0x10c0 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
Allocated by task 4028:
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+0xbc/0xfc mm/kasan/common.c:513
__kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
kasan_kmalloc include/linux/kasan.h:264 [inline]
__kmalloc+0x29c/0x4c8 mm/slub.c:4407
kmalloc include/linux/slab.h:596 [inline]
kzalloc include/linux/slab.h:721 [inline]
__hfs_bnode_create+0xe4/0x864 fs/hfsplus/bnode.c:416
hfsplus_bnode_find+0x200/0xcb0 fs/hfsplus/bnode.c:497
hfsplus_brec_find+0x134/0x4a0 fs/hfsplus/bfind.c:172
hfsplus_find_attr fs/hfsplus/attributes.c:160 [inline]
hfsplus_delete_all_attrs+0x1ec/0x348 fs/hfsplus/attributes.c:371
hfsplus_delete_cat+0x9a4/0xd6c fs/hfsplus/catalog.c:425
hfsplus_unlink+0x2c0/0x6a0 fs/hfsplus/dir.c:385
hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547
vfs_rename+0xac8/0xe04 fs/namei.c:4832
do_renameat2+0xa00/0x10c0 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 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 ffff0000c084d400
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 192 bytes inside of
256-byte region [ffff0000c084d400, ffff0000c084d500)
The buggy address belongs to the page:
page:000000008952f2b4 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10084c
head:000000008952f2b4 order:1 compound_mapcount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002480
raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff0000c084d380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff0000c084d400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000c084d480: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff0000c084d500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff0000c084d580: 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 ffff729000007fdf
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=00000001ae2df000
[ffff729000007fdf] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 4028 Comm: syz-executor200 Tainted: G B 5.15.168-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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+0x74/0x2b4 mm/kasan/generic.c:189
lr : memcpy+0x90/0xe8 mm/kasan/shadow.c:65
sp : ffff80001f187090
x29: ffff80001f187090 x28: 00000000000000ff x27: dfff800000000000
x26: ffff80001f1871c0 x25: 1ffff00002890d1b x24: 0000000000000001
x23: ffff8000170f4000 x22: ffff800008fc1bc4 x21: ffff80001f1871a0
x20: ffff94800003feff x19: 0000000000000001 x18: 0000000000000000
x17: 0000000000000000 x16: ffff800011abb138 x15: 00000000000000ff
x14: ffff0000d5fd1b40 x13: 0000000000ff0100 x12: 0000000000000001
x11: 1ffff29000007fdf x10: 1ffff29000007fdf x9 : ffffffffffffffff
x8 : ffff729000007fdf x7 : 0000000000000000 x6 : 00000000000000ff
x5 : ffff80001f1871c2 x4 : ffff00016186300c x3 : ffff800008fc1bc4
x2 : 0000000000000000 x1 : 0000000000000001 x0 : ffff94800003feff
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+0x74/0x2b4 mm/kasan/generic.c:189
memcpy+0x90/0xe8 mm/kasan/shadow.c:65
hfsplus_bnode_read+0x120/0x24c fs/hfsplus/bnode.c:32
hfsplus_bnode_dump+0x2c4/0x4cc
hfsplus_brec_remove+0x3d0/0x4a4 fs/hfsplus/brec.c:229
__hfsplus_delete_attr+0x1e0/0x3ec fs/hfsplus/attributes.c:299
hfsplus_delete_all_attrs+0x214/0x348 fs/hfsplus/attributes.c:378
hfsplus_delete_cat+0x9a4/0xd6c fs/hfsplus/catalog.c:425
hfsplus_unlink+0x2c0/0x6a0 fs/hfsplus/dir.c:385
hfsplus_rename+0xd0/0x1b0 fs/hfsplus/dir.c:547
vfs_rename+0xac8/0xe04 fs/namei.c:4832
do_renameat2+0xa00/0x10c0 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+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
el0t_64_sync_handler+0x84/0xe4 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 523f6926f5f04144 ]---
----------------
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