usb 9-1: received invalid command response:got 14, 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 14 at addr ffffc9000018fa30 by task syz.8.4511/24121 CPU: 1 UID: 0 PID: 24121 Comm: syz.8.4511 Not tainted syzkaller #0 PREEMPT(lazy) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 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/0x1c0 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:2032 [inline] __hrtimer_run_queues+0x462/0x9c0 kernel/time/hrtimer.c:2096 hrtimer_run_softirq+0x17d/0x2c0 kernel/time/hrtimer.c:2113 handle_softirqs+0x1dd/0x990 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:1062 [inline] sysvec_apic_timer_interrupt+0x8f/0xb0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:unwind_next_frame+0xcc6/0x2090 arch/x86/kernel/unwind_orc.c:610 Code: c0 0f 85 db 0d 00 00 0f b6 41 04 83 e0 0f 3c 09 0f 84 ef 0a 00 00 0f b6 41 05 4c 89 44 24 18 83 e0 07 3c 03 0f 84 cc 03 00 00 <3c> 04 0f 84 05 03 00 00 48 89 4c 24 20 3c 02 0f 85 60 f6 ff ff 49 RSP: 0018:ffffc9000bcbf990 EFLAGS: 00000297 RAX: 0000000000000002 RBX: 0000000000000001 RCX: ffffffff8ba29e2c RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffffc9000bcbfa48 R08: ffffffff8ba29e30 R09: 0000000000000007 R10: 0000000000000200 R11: 0000000000045263 R12: ffffc9000bcbfa50 R13: ffffc9000bcbfa00 R14: ffffc9000bcbfee0 R15: ffffc9000bcbfdf0 arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 kasan_save_stack+0x30/0x50 mm/kasan/common.c:57 kasan_save_track+0x14/0x30 mm/kasan/common.c:78 kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x43/0x70 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2705 [inline] slab_free mm/slub.c:6405 [inline] kfree+0x20c/0x650 mm/slub.c:6720 raw_ioctl_ep_write drivers/usb/gadget/legacy/raw_gadget.c:1154 [inline] raw_ioctl+0x265/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1325 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 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: 0033:0x7fb1f183daeb Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 RSP: 002b:00007fb1f0295f60 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fb1f183daeb RDX: 00007fb1f0295fe0 RSI: 0000000040085507 RDI: 0000000000000004 RBP: 0000000000000004 R08: 00007fb1f1bf0320 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000200000000140 R13: 000000000000000c R14: 00007fb1f1ac5fa0 R15: 00007fff0fd9c2a8 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:0x1026af flags: 0x200000000000000(node=0|zone=2) raw: 0200000000000000 ffffea000409abc8 ffffea000409abc8 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 2689576378, free_ts 0 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859 prep_new_page mm/page_alloc.c:1867 [inline] get_page_from_freelist+0xf25/0x3400 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x28f/0x2b90 mm/page_alloc.c:5304 __alloc_pages_noprof+0xb/0x110 mm/page_alloc.c:5338 __alloc_pages_node_noprof include/linux/gfp.h:291 [inline] alloc_pages_node_noprof include/linux/gfp.h:318 [inline] vm_area_alloc_pages mm/vmalloc.c:3669 [inline] __vmalloc_area_node mm/vmalloc.c:3892 [inline] __vmalloc_node_range_noprof+0xe0c/0x1630 mm/vmalloc.c:4082 __vmalloc_node_noprof+0xad/0xf0 mm/vmalloc.c:4143 alloc_thread_stack_node kernel/fork.c:359 [inline] dup_task_struct kernel/fork.c:929 [inline] copy_process+0x7fb/0x7dd0 kernel/fork.c:2115 kernel_clone+0x176/0x9d0 kernel/fork.c:2748 kernel_thread+0xdb/0x120 kernel/fork.c:2809 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_owner free stack trace missing Memory state around the buggy address: ffffc9000018f900: f1 f1 00 00 00 f3 f3 f3 f3 f3 00 00 00 00 00 00 ffffc9000018f980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffffc9000018fa00: f1 f1 f1 f1 f1 f1 04 f2 04 f3 f3 f3 00 00 00 00 ^ ffffc9000018fa80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffffc9000018fb00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ================================================================== ---------------- Code disassembly (best guess): 0: c0 0f 85 rorb $0x85,(%rdi) 3: db 0d 00 00 0f b6 fisttpl -0x49f10000(%rip) # 0xb60f0009 9: 41 04 83 rex.B add $0x83,%al c: e0 0f loopne 0x1d e: 3c 09 cmp $0x9,%al 10: 0f 84 ef 0a 00 00 je 0xb05 16: 0f b6 41 05 movzbl 0x5(%rcx),%eax 1a: 4c 89 44 24 18 mov %r8,0x18(%rsp) 1f: 83 e0 07 and $0x7,%eax 22: 3c 03 cmp $0x3,%al 24: 0f 84 cc 03 00 00 je 0x3f6 * 2a: 3c 04 cmp $0x4,%al <-- trapping instruction 2c: 0f 84 05 03 00 00 je 0x337 32: 48 89 4c 24 20 mov %rcx,0x20(%rsp) 37: 3c 02 cmp $0x2,%al 39: 0f 85 60 f6 ff ff jne 0xfffff69f 3f: 49 rex.WB