------------[ cut here ]------------ WARNING: CPU: 1 PID: 5778 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871 Modules linked in: CPU: 1 UID: 0 PID: 5778 Comm: syz.1.93 Not tainted 6.11.0-rc2-syzkaller-00013-gd4560686726f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 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 f6 61 22 0a 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 40 RSP: 0018:ffffc90000a17930 EFLAGS: 00010002 RAX: 0000000000010101 RBX: ffff88802a0f0000 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c605d00 RBP: 0100000000000002 R08: ffffffff9372c877 R09: 1ffffffff26e590e R10: dffffc0000000000 R11: fffffbfff26e590f R12: ffffffff8193809e R13: ffff88806c4f9200 R14: 0000000000000006 R15: ffff8880b932d4c8 FS: 00007f0a5d46a6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32b0cff8 CR3: 000000006db22000 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+0x830/0x45a0 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:preempt_count arch/x86/include/asm/preempt.h:26 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x11/0x70 kernel/kcov.c:207 Code: 5b e9 23 87 5b 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 40 d7 03 00 <65> 8b 15 40 60 70 7e f7 c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 RSP: 0018:ffffc90000a180c8 EFLAGS: 00000202 RAX: ffffffff8b03d2cd RBX: 0000000000000000 RCX: ffff88802a0f0000 RDX: ffff88802a0f0000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000102 R08: ffffffff8b03d2a9 R09: ffffffff8b03cfcd R10: 0000000000000002 R11: ffff88802a0f0000 R12: 1ffff11005e8c851 R13: ffff88802f464290 R14: 0000000000000000 R15: 000000000000032a cfg80211_find_elem_match net/wireless/scan.c:1364 [inline] cfg80211_find_elem include/net/cfg80211.h:6858 [inline] cfg80211_get_ies_channel_number+0x32d/0x840 net/wireless/scan.c:2065 cfg80211_get_bss_channel net/wireless/scan.c:2098 [inline] cfg80211_inform_single_bss_data+0x267/0x2030 net/wireless/scan.c:2242 cfg80211_inform_bss_data+0x3dd/0x5a70 net/wireless/scan.c:3159 cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3254 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:5124 [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+0x264/0x420 net/mac80211/tx.c:6130 ieee80211_mgmt_tx+0x1b46/0x2180 net/mac80211/offchannel.c:1022 rdev_mgmt_tx net/wireless/rdev-ops.h:760 [inline] cfg80211_mlme_mgmt_tx+0x950/0x16a0 net/wireless/mlme.c:937 nl80211_tx_mgmt+0xb0d/0x1190 net/wireless/nl80211.c:12808 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2597 ___sys_sendmsg net/socket.c:2651 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2680 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0a5c7779f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0a5d46a038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f0a5c906058 RCX: 00007f0a5c7779f9 RDX: 0000000000000000 RSI: 0000000020000440 RDI: 000000000000000b RBP: 00007f0a5c7e58ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0a5c906058 R15: 00007f0a5ca2fa38 ---------------- Code disassembly (best guess): 0: 5b pop %rbx 1: e9 23 87 5b 00 jmp 0x5b8729 6: 0f 1f 00 nopl (%rax) 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: f3 0f 1e fa endbr64 1d: 48 8b 04 24 mov (%rsp),%rax 21: 65 48 8b 0c 25 40 d7 mov %gs:0x3d740,%rcx 28: 03 00 * 2a: 65 8b 15 40 60 70 7e mov %gs:0x7e706040(%rip),%edx # 0x7e706071 <-- trapping instruction 31: f7 c2 00 01 ff 00 test $0xff0100,%edx 37: 74 11 je 0x4a 39: f7 c2 00 01 00 00 test $0x100,%edx 3f: 74 .byte 0x74