usb 1-1: received invalid command response:got 12, instead of 4
==================================================================
BUG: KASAN: stack-out-of-bounds in carl9170_cmd_callback drivers/net/wireless/ath/carl9170/rx.c:153 [inline]
BUG: KASAN: stack-out-of-bounds in carl9170_handle_command_response+0x21f/0xc50 drivers/net/wireless/ath/carl9170/rx.c:168
Write of size 12 at addr ffffc9000291fa38 by task udevd/5247
CPU: 0 UID: 0 PID: 5247 Comm: udevd Not tainted syzkaller #0 PREEMPT(lazy)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x13d/0x4b0 mm/kasan/report.c:482
kasan_report+0xdf/0x1d0 mm/kasan/report.c:595
check_region_inline mm/kasan/generic.c:186 [inline]
kasan_check_range+0x10f/0x1e0 mm/kasan/generic.c:200
__asan_memcpy+0x3c/0x60 mm/kasan/shadow.c:106
carl9170_cmd_callback drivers/net/wireless/ath/carl9170/rx.c:153 [inline]
carl9170_handle_command_response+0x21f/0xc50 drivers/net/wireless/ath/carl9170/rx.c:168
carl9170_usb_rx_irq_complete+0xfc/0x1b0 drivers/net/wireless/ath/carl9170/usb.c:307
__usb_hcd_giveback_urb+0x38d/0x610 drivers/usb/core/hcd.c:1657
usb_hcd_giveback_urb+0x3ca/0x4a0 drivers/usb/core/hcd.c:1741
dummy_timer+0xda1/0x36c0 drivers/usb/gadget/udc/dummy_hcd.c:2005
__run_hrtimer kernel/time/hrtimer.c:1930 [inline]
__hrtimer_run_queues+0x470/0xa00 kernel/time/hrtimer.c:1994
hrtimer_run_softirq+0x17d/0x2c0 kernel/time/hrtimer.c:2011
handle_softirqs+0x1dd/0x9e0 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x160/0x210 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:228 [inline]
RIP: 0010:__follow_mount_rcu fs/namei.c:1708 [inline]
RIP: 0010:handle_mounts fs/namei.c:1735 [inline]
RIP: 0010:step_into_slowpath+0x770/0xf90 fs/namei.c:2100
Code: 48 8b 75 08 4c 89 e7 e8 de 8f 6b ff 9c 41 5c 41 81 e4 00 02 00 00 31 ff 4c 89 e6 e8 da 21 8f ff 58 4d 85 e4 0f 85 32 05 00 00 eb 26 8f ff 4d 8d 6e 08 4c 89 e8 48 c1 e8 03 42 0f b6 0c 38 4c
RSP: 0018:ffffc900029e78e0 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc900029e7c10 RCX: ffffffff8223c0cb
RDX: ffff88811a0b1dc0 RSI: ffffffff8223c0da RDI: ffff88811a0b1dc0
RBP: ffffc900029e79e0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000008000 R14: ffff8881175ff028 R15: dffffc0000000000
step_into fs/namei.c:2148 [inline]
walk_component fs/namei.c:2284 [inline]
link_path_walk+0xf28/0x1cc0 fs/namei.c:2652
path_openat+0x1be/0x31a0 fs/namei.c:4854
do_file_open+0x20e/0x430 fs/namei.c:4887
do_sys_openat2+0x10d/0x1e0 fs/open.c:1364
do_sys_open fs/open.c:1370 [inline]
__do_sys_openat fs/open.c:1386 [inline]
__se_sys_openat fs/open.c:1381 [inline]
__x64_sys_openat+0x12d/0x210 fs/open.c:1381
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x10b/0x7f0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc5c085f407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fff00aad6d0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc5c0771880 RCX: 00007fc5c085f407
RDX: 0000000000080000 RSI: 00007fff00aad840 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000055acea01c7f5
R13: 000055acea01c7f5 R14: 0000000000000001 R15: 000055acea037140
The buggy address belongs to a
vmalloc virtual mapping
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1209e7
flags: 0x200000000000000(node=0|zone=2)
raw: 0200000000000000 0000000000000000 ffffea00048279c8 0000000000000000
raw: 0000000000000000 0000000000000000 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 0x29c2(GFP_NOWAIT|__GFP_HIGHMEM|__GFP_IO|__GFP_FS|__GFP_ZERO), pid 2, tgid 2 (kthreadd), ts 97965964330, free_ts 75846528923
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1853
prep_new_page mm/page_alloc.c:1861 [inline]
get_page_from_freelist+0x20a5/0x3850 mm/page_alloc.c:3941
__alloc_frozen_pages_noprof+0x273/0x28a0 mm/page_alloc.c:5221
__alloc_pages_noprof+0xb/0x110 mm/page_alloc.c:5255
__alloc_pages_node_noprof include/linux/gfp.h:289 [inline]
alloc_pages_node_noprof include/linux/gfp.h:316 [inline]
vm_area_alloc_pages mm/vmalloc.c:3655 [inline]
__vmalloc_area_node mm/vmalloc.c:3878 [inline]
__vmalloc_node_range_noprof+0xe0c/0x1630 mm/vmalloc.c:4064
__vmalloc_node_noprof+0xad/0xf0 mm/vmalloc.c:4124
alloc_thread_stack_node kernel/fork.c:357 [inline]
dup_task_struct kernel/fork.c:926 [inline]
copy_process+0x7fb/0x7c70 kernel/fork.c:2090
kernel_clone+0x176/0x9e0 kernel/fork.c:2722
kernel_thread+0xdb/0x120 kernel/fork.c:2783
create_kthread kernel/kthread.c:459 [inline]
kthreadd+0x498/0x7a0 kernel/kthread.c:817
ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
page last free pid 4274 tgid 4274 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0x6d8/0xf60 mm/page_alloc.c:2938
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x4e/0x70 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
kmem_cache_alloc_noprof+0x2e7/0x6a0 mm/slub.c:4906
ptlock_alloc mm/memory.c:7579 [inline]
ptlock_init include/linux/mm.h:3741 [inline]
pmd_ptlock_init include/linux/mm.h:3853 [inline]
pagetable_pmd_ctor include/linux/mm.h:3881 [inline]
pmd_alloc_one_noprof include/asm-generic/pgalloc.h:146 [inline]
__pmd_alloc+0x98/0x8d0 mm/memory.c:6820
pmd_alloc include/linux/mm.h:3567 [inline]
__handle_mm_fault+0xe16/0x2780 mm/memory.c:6517
handle_mm_fault+0x37b/0xa30 mm/memory.c:6734
do_user_addr_fault+0x74c/0x11d0 arch/x86/mm/fault.c:1385
handle_page_fault arch/x86/mm/fault.c:1474 [inline]
exc_page_fault+0x66/0xc0 arch/x86/mm/fault.c:1527
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
Memory state around the buggy address:
ffffc9000291f900: f1 f1 f1 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 00
ffffc9000291f980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffc9000291fa00: 00 f1 f1 f1 f1 f1 f1 04 f2 04 f3 f3 f3 00 00 00
^
ffffc9000291fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffc9000291fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
----------------
Code disassembly (best guess):
0: 48 8b 75 08 mov 0x8(%rbp),%rsi
4: 4c 89 e7 mov %r12,%rdi
7: e8 de 8f 6b ff call 0xff6b8fea
c: 9c pushf
d: 41 5c pop %r12
f: 41 81 e4 00 02 00 00 and $0x200,%r12d
16: 31 ff xor %edi,%edi
18: 4c 89 e6 mov %r12,%rsi
1b: e8 da 21 8f ff call 0xff8f21fa
20: 58 pop %rax
21: 4d 85 e4 test %r12,%r12
24: 0f 85 32 05 00 00 jne 0x55c
* 2a: e8 eb 26 8f ff call 0xff8f271a <-- trapping instruction
2f: 4d 8d 6e 08 lea 0x8(%r14),%r13
33: 4c 89 e8 mov %r13,%rax
36: 48 c1 e8 03 shr $0x3,%rax
3a: 42 0f b6 0c 38 movzbl (%rax,%r15,1),%ecx
3f: 4c rex.WR