------------[ cut here ]------------ WARNING: CPU: 0 PID: 14144 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871 Modules linked in: CPU: 0 PID: 14144 Comm: syz.4.2500 Not tainted 6.10.0-rc7-syzkaller-00003-g4376e966ecb7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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 66 cd ef 09 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 e0 RSP: 0018:ffffc90000006cd0 EFLAGS: 00010002 RAX: 0000000080010302 RBX: ffff88801feeda00 RCX: 0000000000000002 RDX: dffffc0000000000 RSI: ffffffff8bcaccc0 RDI: ffffffff8c1fe980 RBP: 0100000000000002 R08: ffffffff92fa75ef R09: 1ffffffff25f4ebd R10: dffffc0000000000 R11: fffffbfff25f4ebe R12: ffffffff8196315e R13: ffff88807c8a7e00 R14: 0000000000000006 R15: ffff8880b942d4c8 FS: 00007fcef42a46c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020146000 CR3: 0000000029e70000 CR4: 0000000000350ef0 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+0x59d/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+0x112/0x3f0 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:ieee80211_get_mmie_keyidx+0x2fc/0x4c0 net/mac80211/rx.c:1012 Code: 0f b6 04 28 84 c0 0f 85 84 01 00 00 41 0f b7 07 eb 18 e8 d7 21 99 f6 eb 0c e8 d0 21 99 f6 eb 05 e8 c9 21 99 f6 b8 ff ff ff ff <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 10 3b b3 00 83 fb 15 7f 28 83 fb RSP: 0018:ffffc90000007468 EFLAGS: 00000287 RAX: 00000000ffffffff RBX: 0000000000110208 RCX: 0000000000040000 RDX: ffffc900020b1000 RSI: 000000000000005b RDI: 000000000000005c RBP: ffffc900000077f0 R08: ffffffff8afd038b R09: ffffffff8afbbabd R10: 0000000000000002 R11: ffff88801feeda00 R12: 000000000000012f R13: dffffc0000000000 R14: ffff88804b043040 R15: ffff88804b043040 ieee80211_rx_h_decrypt net/mac80211/rx.c:1970 [inline] ieee80211_rx_handlers+0x1c20/0xb820 net/mac80211/rx.c:4187 ieee80211_invoke_rx_handlers net/mac80211/rx.c:4235 [inline] ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5083 __ieee80211_rx_handle_packet net/mac80211/rx.c:5324 [inline] ieee80211_rx_list+0x2cde/0x3780 net/mac80211/rx.c:5459 ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5482 ieee80211_rx include/net/mac80211.h:5093 [inline] ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:438 tasklet_action_common+0x323/0x4d0 kernel/softirq.c:785 handle_softirqs+0x2c6/0x970 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:6131 ieee80211_mgmt_tx+0x1b46/0x2170 net/mac80211/offchannel.c:989 rdev_mgmt_tx net/wireless/rdev-ops.h:762 [inline] cfg80211_mlme_mgmt_tx+0x952/0x16a0 net/wireless/mlme.c:937 nl80211_tx_mgmt+0xb0d/0x1190 net/wireless/nl80211.c:12655 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0xb16/0xec0 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x1e5/0x430 net/netlink/af_netlink.c:2564 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline] netlink_unicast+0x7ec/0x980 net/netlink/af_netlink.c:1361 netlink_sendmsg+0x8db/0xcb0 net/netlink/af_netlink.c:1905 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x223/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668 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: 0033:0x7fcef3575bd9 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:00007fcef42a4048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fcef3704038 RCX: 00007fcef3575bd9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 000000000000000a RBP: 00007fcef35e4e60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fcef3704038 R15: 00007ffc8b3d28b8 ---------------- Code disassembly (best guess): 0: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax 4: 84 c0 test %al,%al 6: 0f 85 84 01 00 00 jne 0x190 c: 41 0f b7 07 movzwl (%r15),%eax 10: eb 18 jmp 0x2a 12: e8 d7 21 99 f6 call 0xf69921ee 17: eb 0c jmp 0x25 19: e8 d0 21 99 f6 call 0xf69921ee 1e: eb 05 jmp 0x25 20: e8 c9 21 99 f6 call 0xf69921ee 25: b8 ff ff ff ff mov $0xffffffff,%eax * 2a: 5b pop %rbx <-- trapping instruction 2b: 41 5c pop %r12 2d: 41 5d pop %r13 2f: 41 5e pop %r14 31: 41 5f pop %r15 33: 5d pop %rbp 34: e9 10 3b b3 00 jmp 0xb33b49 39: 83 fb 15 cmp $0x15,%ebx 3c: 7f 28 jg 0x66 3e: 83 .byte 0x83 3f: fb sti