================================================================== BUG: KASAN: use-after-free in memcpy include/linux/string.h:399 [inline] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] BUG: KASAN: use-after-free in ath9k_hif_usb_rx_cb+0x3ab/0x1020 drivers/net/wireless/ath/ath9k/hif_usb.c:680 Read of size 37892 at addr ffff88810dcc0000 by task systemd-udevd/2639 CPU: 0 PID: 2639 Comm: systemd-udevd Not tainted 5.10.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xae/0x4c8 mm/kasan/report.c:385 __kasan_report mm/kasan/report.c:545 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:562 check_memory_region_inline mm/kasan/generic.c:186 [inline] check_memory_region+0x13d/0x180 mm/kasan/generic.c:192 memcpy+0x20/0x60 mm/kasan/common.c:105 memcpy include/linux/string.h:399 [inline] ath9k_hif_usb_rx_stream drivers/net/wireless/ath/ath9k/hif_usb.c:562 [inline] ath9k_hif_usb_rx_cb+0x3ab/0x1020 drivers/net/wireless/ath/ath9k/hif_usb.c:680 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1728 dummy_timer+0x11f4/0x3280 drivers/usb/gadget/udc/dummy_hcd.c:1969 call_timer_fn+0x1a5/0x630 kernel/time/timer.c:1410 expire_timers kernel/time/timer.c:1455 [inline] __run_timers.part.0+0x67c/0xa10 kernel/time/timer.c:1747 __run_timers kernel/time/timer.c:1728 [inline] run_timer_softirq+0x80/0x120 kernel/time/timer.c:1760 __do_softirq+0x1b2/0x945 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x110/0x1a0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:631 RIP: 0010:___bpf_prog_run+0x4708/0x6640 kernel/bpf/core.c:1435 Code: 0f b6 47 01 89 c2 83 e0 0f 4c 8d 64 c5 00 c0 ea 04 0f b6 d2 4c 8d 74 d5 00 4c 89 f0 48 c1 e8 03 80 3c 18 00 0f 85 80 0d 00 00 <4c> 89 e0 4d 8b 36 48 c1 e8 03 80 3c 18 00 0f 85 48 0d 00 00 4d 89 RSP: 0018:ffffc90000277c08 EFLAGS: 00000246 RAX: 1ffff9200004ef9b RBX: dffffc0000000000 RCX: ffffffff813f4c4a RDX: 0000000000000001 RSI: ffffffff8149db3c RDI: ffffc90000085049 RBP: ffffc90000277cd0 R08: 0000000000000001 R09: 0000000000000001 R10: 000000007fff0000 R11: 0000000000000000 R12: ffffc90000277d00 R13: fffff5200004ef9c R14: ffffc90000277cd8 R15: ffffc90000085048 __bpf_prog_run32+0x8f/0xd0 kernel/bpf/core.c:1686 bpf_dispatcher_nop_func include/linux/bpf.h:644 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline] seccomp_run_filters kernel/seccomp.c:328 [inline] __seccomp_filter+0x14e/0x1480 kernel/seccomp.c:941 __secure_computing+0xac/0x290 kernel/seccomp.c:1074 syscall_trace_enter.constprop.0+0x80/0x240 kernel/entry/common.c:58 do_syscall_64+0xf/0x40 arch/x86/entry/common.c:41 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7f90115382e3 Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 83 3d 29 54 2b 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 0b c2 00 00 48 89 04 24 RSP: 002b:00007ffeb4b16528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 00005635e8e9e9a0 RCX: 00007f90115382e3 RDX: 000000000000000d RSI: 00007ffeb4b16530 RDI: 000000000000000a RBP: 00007ffeb4b166d0 R08: 00005635e7a16ae0 R09: 0000000000000100 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeb4b16530 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 The buggy address belongs to the page: page:00000000e1076a52 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10dcc0 head:00000000e1076a52 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x200000000010000(head) raw: 0200000000010000 dead000000000100 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88810dcc7f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88810dcc7f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff88810dcc8000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810dcc8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810dcc8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================