==================================================================
BUG: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x1e4/0x240 fs/hfsplus/bnode.c:37
Read of size 8 at addr ffff888028d24598 by task syz-executor.2/11610
CPU: 0 PID: 11610 Comm: syz-executor.2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114
print_address_description mm/kasan/report.c:377 [inline]
print_report+0xc3/0x620 mm/kasan/report.c:488
kasan_report+0xd9/0x110 mm/kasan/report.c:601
hfsplus_bnode_read+0x1e4/0x240 fs/hfsplus/bnode.c:37
hfsplus_bnode_read_key+0x14d/0x230 fs/hfsplus/bnode.c:70
hfsplus_brec_insert+0x8b3/0xc50 fs/hfsplus/brec.c:141
hfsplus_create_attr+0x3cf/0x4a0 fs/hfsplus/attributes.c:252
__hfsplus_setxattr+0x519/0x2180 fs/hfsplus/xattr.c:345
hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:434
__vfs_setxattr+0x176/0x1e0 fs/xattr.c:200
__vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:234
__vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295
vfs_setxattr+0x146/0x350 fs/xattr.c:321
do_setxattr+0x146/0x170 fs/xattr.c:629
setxattr+0x15d/0x180 fs/xattr.c:652
path_setxattr+0x179/0x1e0 fs/xattr.c:671
__do_sys_setxattr fs/xattr.c:687 [inline]
__se_sys_setxattr fs/xattr.c:683 [inline]
__x64_sys_setxattr+0xc4/0x160 fs/xattr.c:683
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f3b04e7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3b05b220c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f3b04fac050 RCX: 00007f3b04e7dda9
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000020000280
RBP: 00007f3b04eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3b04fac050 R15: 00007ffe92e1b138
Allocated by task 11603:
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3966 [inline]
__kmalloc+0x1f9/0x440 mm/slub.c:3979
kmalloc include/linux/slab.h:632 [inline]
kzalloc include/linux/slab.h:749 [inline]
__hfs_bnode_create+0x108/0x870 fs/hfsplus/bnode.c:409
hfsplus_bnode_find+0x2c8/0xcb0 fs/hfsplus/bnode.c:486
hfsplus_brec_find+0x2b9/0x520 fs/hfsplus/bfind.c:183
hfsplus_delete_attr+0x23e/0x310 fs/hfsplus/attributes.c:341
hfsplus_removexattr fs/hfsplus/xattr.c:794 [inline]
__hfsplus_setxattr+0x8a6/0x2180 fs/hfsplus/xattr.c:275
hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:434
__vfs_removexattr+0x156/0x1c0 fs/xattr.c:518
__vfs_removexattr_locked+0x166/0x440 fs/xattr.c:553
vfs_removexattr+0xcf/0x260 fs/xattr.c:575
removexattr+0x137/0x1b0 fs/xattr.c:917
path_removexattr+0x161/0x1c0 fs/xattr.c:931
__do_sys_removexattr fs/xattr.c:945 [inline]
__se_sys_removexattr fs/xattr.c:942 [inline]
__x64_sys_removexattr+0x59/0x80 fs/xattr.c:942
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
The buggy address belongs to the object at ffff888028d24500
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 0 bytes to the right of
allocated 152-byte region [ffff888028d24500, ffff888028d24598)
The buggy address belongs to the physical page:
page:ffffea0000a34900 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x28d24
anon flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff00000000800 ffff888015041a00 0000000000000000 dead000000000001
raw: 0000000000000000 0000000080100010 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, tgid 1 (swapper/0), ts 30433340930, free_ts 30429249427
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2d4/0x350 mm/page_alloc.c:1533
prep_new_page mm/page_alloc.c:1540 [inline]
get_page_from_freelist+0xa28/0x3780 mm/page_alloc.c:3311
__alloc_pages+0x22b/0x2410 mm/page_alloc.c:4569
__alloc_pages_node include/linux/gfp.h:238 [inline]
alloc_pages_node include/linux/gfp.h:261 [inline]
alloc_slab_page mm/slub.c:2175 [inline]
allocate_slab mm/slub.c:2338 [inline]
new_slab+0xcc/0x3a0 mm/slub.c:2391
___slab_alloc+0x66d/0x1790 mm/slub.c:3525
__slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3610
__slab_alloc_node mm/slub.c:3663 [inline]
slab_alloc_node mm/slub.c:3835 [inline]
__do_kmalloc_node mm/slub.c:3965 [inline]
__kmalloc_node_track_caller+0x367/0x470 mm/slub.c:3986
__do_krealloc mm/slab_common.c:1192 [inline]
krealloc+0x5d/0x100 mm/slab_common.c:1225
add_sysfs_param+0x152/0x960 kernel/params.c:663
kernel_add_sysfs_param kernel/params.c:817 [inline]
param_sysfs_builtin kernel/params.c:856 [inline]
param_sysfs_builtin_init+0x2ce/0x460 kernel/params.c:990
do_one_initcall+0x12b/0x690 init/main.c:1241
do_initcall_level init/main.c:1303 [inline]
do_initcalls init/main.c:1319 [inline]
do_basic_setup init/main.c:1338 [inline]
kernel_init_freeable+0x69d/0xc40 init/main.c:1550
kernel_init+0x1c/0x2a0 init/main.c:1439
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
page last free pid 24 tgid 24 stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1140 [inline]
free_unref_page_prepare+0x527/0xb10 mm/page_alloc.c:2346
free_unref_page+0x33/0x3c0 mm/page_alloc.c:2486
vfree+0x181/0x7a0 mm/vmalloc.c:2914
delayed_vfree_work+0x56/0x70 mm/vmalloc.c:2835
process_one_work+0x9ac/0x1a60 kernel/workqueue.c:3254
process_scheduled_works kernel/workqueue.c:3335 [inline]
worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
kthread+0x2c4/0x3a0 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
Memory state around the buggy address:
ffff888028d24480: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff888028d24500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888028d24580: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffff888028d24600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888028d24680: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
general protection fault, probably for non-canonical address 0x5088000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 PID: 11610 Comm: syz-executor.2 Tainted: G B 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:memcpy_orig+0x1e/0x140 arch/x86/lib/memcpy_64.S:65
Code: 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 89 f8 48 83 fa 20 0f 82 86 00 00 00 40 38 fe 7c 35 48 83 ea 20 48 83 ea 20 <4c> 8b 06 4c 8b 4e 08 4c 8b 56 10 4c 8b 5e 18 48 8d 76 20 4c 89 07
RSP: 0018:ffffc90004d1f1e0 EFLAGS: 00010206
RAX: ffff8880a1f61fba RBX: 0000000000004279 RCX: ffffc9000a29f000
RDX: 0000000000000fc0 RSI: 0005088000000000 RDI: ffff8880a1f61fba
RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000001000
R10: 0000000000001000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff888028d24598 R14: ffff8880a1f61fba R15: 0005088000000000
FS: 00007f3b05b226c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb02379198 CR3: 00000000a02c6000 CR4: 0000000000350ef0
Call Trace:
memcpy_from_page include/linux/highmem.h:417 [inline]
hfsplus_bnode_read+0x1a0/0x240 fs/hfsplus/bnode.c:37
hfsplus_bnode_read_key+0x14d/0x230 fs/hfsplus/bnode.c:70
hfsplus_brec_insert+0x8b3/0xc50 fs/hfsplus/brec.c:141
hfsplus_create_attr+0x3cf/0x4a0 fs/hfsplus/attributes.c:252
__hfsplus_setxattr+0x519/0x2180 fs/hfsplus/xattr.c:345
hfsplus_setxattr+0x10c/0x180 fs/hfsplus/xattr.c:434
__vfs_setxattr+0x176/0x1e0 fs/xattr.c:200
__vfs_setxattr_noperm+0x127/0x5e0 fs/xattr.c:234
__vfs_setxattr_locked+0x182/0x260 fs/xattr.c:295
vfs_setxattr+0x146/0x350 fs/xattr.c:321
do_setxattr+0x146/0x170 fs/xattr.c:629
setxattr+0x15d/0x180 fs/xattr.c:652
path_setxattr+0x179/0x1e0 fs/xattr.c:671
__do_sys_setxattr fs/xattr.c:687 [inline]
__se_sys_setxattr fs/xattr.c:683 [inline]
__x64_sys_setxattr+0xc4/0x160 fs/xattr.c:683
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f3b04e7dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f3b05b220c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f3b04fac050 RCX: 00007f3b04e7dda9
RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000020000280
RBP: 00007f3b04eca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3b04fac050 R15: 00007ffe92e1b138
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:memcpy_orig+0x1e/0x140 arch/x86/lib/memcpy_64.S:65
Code: 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 89 f8 48 83 fa 20 0f 82 86 00 00 00 40 38 fe 7c 35 48 83 ea 20 48 83 ea 20 <4c> 8b 06 4c 8b 4e 08 4c 8b 56 10 4c 8b 5e 18 48 8d 76 20 4c 89 07
RSP: 0018:ffffc90004d1f1e0 EFLAGS: 00010206
RAX: ffff8880a1f61fba RBX: 0000000000004279 RCX: ffffc9000a29f000
RDX: 0000000000000fc0 RSI: 0005088000000000 RDI: ffff8880a1f61fba
RBP: 0000000000001000 R08: 0000000000000007 R09: 0000000000001000
R10: 0000000000001000 R11: 0000000000000001 R12: 0000000000001000
R13: ffff888028d24598 R14: ffff8880a1f61fba R15: 0005088000000000
FS: 00007f3b05b226c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000200 CR3: 00000000a02c6000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess):
0: 90 nop
1: 90 nop
2: 90 nop
3: 90 nop
4: 90 nop
5: 90 nop
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 66 0f 1f 00 nopw (%rax)
10: 48 89 f8 mov %rdi,%rax
13: 48 83 fa 20 cmp $0x20,%rdx
17: 0f 82 86 00 00 00 jb 0xa3
1d: 40 38 fe cmp %dil,%sil
20: 7c 35 jl 0x57
22: 48 83 ea 20 sub $0x20,%rdx
26: 48 83 ea 20 sub $0x20,%rdx
* 2a: 4c 8b 06 mov (%rsi),%r8 <-- trapping instruction
2d: 4c 8b 4e 08 mov 0x8(%rsi),%r9
31: 4c 8b 56 10 mov 0x10(%rsi),%r10
35: 4c 8b 5e 18 mov 0x18(%rsi),%r11
39: 48 8d 76 20 lea 0x20(%rsi),%rsi
3d: 4c 89 07 mov %r8,(%rdi)