------------[ cut here ]------------ WARNING: CPU: 0 PID: 62 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871 Modules linked in: CPU: 0 UID: 0 PID: 62 Comm: kworker/u8:4 Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871 Code: 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 0f 85 a6 01 00 00 41 f7 c6 00 02 00 00 0f 84 93 fa ff ff fb e9 8d fa ff ff 90 <0f> 0b 90 e8 d6 e1 fe 09 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 40 RSP: 0018:ffffc90000006470 EFLAGS: 00010002 RAX: 0000000080010102 RBX: ffff8880173ada00 RCX: 0000000000000002 RDX: 0000000000000000 RSI: ffffffff8c209860 RDI: ffffffff8c209820 RBP: 0100000000000001 R08: ffffffff8fafd2af R09: 1ffffffff1f5fa55 R10: dffffc0000000000 R11: fffffbfff1f5fa56 R12: ffffffff8193958e R13: ffff888021e74e00 R14: 0000000000000006 R15: ffff8880b942d4c8 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c350e90 CR3: 000000002c72c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kcov_remote_start_usb include/linux/kcov.h:55 [inline] kcov_remote_start_usb_softirq include/linux/kcov.h:89 [inline] __usb_hcd_giveback_urb+0x405/0x6e0 drivers/usb/core/hcd.c:1649 dummy_timer+0x830/0x45d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:memset_orig+0x60/0xb0 arch/x86/lib/memset_64.S:82 Code: 48 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 <89> d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 48 89 07 48 RSP: 0018:ffffc90000006c00 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc90000006d18 RCX: 0000000000000000 RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000006d30 RBP: ffffc90000006d28 R08: ffffc90000006d3f R09: 0000000000000000 R10: ffffc90000006d30 R11: fffff52000000da8 R12: ffffc90000007dd8 R13: dffffc0000000000 R14: ffffc90000006d30 R15: 1ffff92000000d9c unwind_next_frame+0x13ab/0x2a00 arch/x86/kernel/unwind_orc.c:592 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:387 kasan_kmalloc include/linux/kasan.h:211 [inline] __do_kmalloc_node mm/slub.c:4172 [inline] __kmalloc_noprof+0x1fc/0x400 mm/slub.c:4184 kmalloc_noprof include/linux/slab.h:685 [inline] kzalloc_noprof include/linux/slab.h:807 [inline] cfg80211_inform_single_bss_data+0xaff/0x2030 net/wireless/scan.c:2307 cfg80211_inform_bss_data+0x3dd/0x5a70 net/wireless/scan.c:3159 cfg80211_inform_bss_frame_data+0x3bc/0x720 net/wireless/scan.c:3249 ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline] ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5462 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5122 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:439 tasklet_action_common+0x321/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2297 [inline] ieee80211_handle_roc_started+0x267/0x440 net/mac80211/offchannel.c:248 _ieee80211_start_next_roc+0x7a1/0xb00 net/mac80211/offchannel.c:381 cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440 process_one_work kernel/workqueue.c:3228 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3309 worker_thread+0x86d/0xd40 kernel/workqueue.c:3387 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---------------- Code disassembly (best guess): 0: 48 89 47 08 mov %rax,0x8(%rdi) 4: 48 89 47 10 mov %rax,0x10(%rdi) 8: 48 89 47 18 mov %rax,0x18(%rdi) c: 48 89 47 20 mov %rax,0x20(%rdi) 10: 48 89 47 28 mov %rax,0x28(%rdi) 14: 48 89 47 30 mov %rax,0x30(%rdi) 18: 48 89 47 38 mov %rax,0x38(%rdi) 1c: 48 8d 7f 40 lea 0x40(%rdi),%rdi 20: 75 d8 jne 0xfffffffa 22: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 29: 00 * 2a: 89 d1 mov %edx,%ecx <-- trapping instruction 2c: 83 e1 38 and $0x38,%ecx 2f: 74 14 je 0x45 31: c1 e9 03 shr $0x3,%ecx 34: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) 3a: ff c9 dec %ecx 3c: 48 89 07 mov %rax,(%rdi) 3f: 48 rex.W