------------[ cut here ]------------
WARNING: CPU: 2 PID: 11746 at kernel/kcov.c:871 kcov_remote_start+0x274/0x6e0 kernel/kcov.c:871
Modules linked in:
CPU: 2 PID: 11746 Comm: syz.0.1599 Not tainted 6.10.0-rc7-syzkaller-00012-g34afb82a3c67 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:kcov_remote_start+0x274/0x6e0 kernel/kcov.c:871
Code: c0 22 49 89 47 08 e9 87 00 00 00 f6 c4 01 0f 85 06 fe ff ff e9 dc fd ff ff 44 8b 95 1c 16 00 00 45 85 d2 0f 84 d5 fe ff ff 90 <0f> 0b 90 e9 b9 00 00 00 65 8b 05 55 e4 75 7e 49 c7 c0 d2 d4 3a 8d
RSP: 0018:ffffc90000857a50 EFLAGS: 00010002
RAX: 0000000080010303 RBX: 000000000002d648 RCX: ffffffff816ae7ce
RDX: 0000000000000002 RSI: ffffffff8b2cb200 RDI: ffffffff8b8ff640
RBP: ffff88805cdc2440 R08: 0000000000000000 R09: fffffbfff284ca67
R10: 0000000000000001 R11: 0000000000000005 R12: ffff88806b22d648
R13: 0000000000000000 R14: 0100000000000006 R15: ffff88805cdc2440
FS: 00007f9d8ad286c0(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9d8ad26fc8 CR3: 000000004ef82000 CR4: 0000000000350ef0
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+0x35b/0x6e0 drivers/usb/core/hcd.c:1649
usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
__run_hrtimer kernel/time/hrtimer.c:1689 [inline]
__hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753
hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
__sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x43/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200
Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 48 8b 15 64 f4 75 7e 65 8b 05 65 f4 75 7e a9 00 01
RSP: 0018:ffffc90000857fc8 EFLAGS: 00000282
RAX: 0000000000000000 RBX: ffffc90000858098 RCX: 0000000000000001
RDX: 0000000000000008 RSI: ffffc90000d272a8 RDI: ffffc90000858098
RBP: ffffc90000d272a8 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000001 R11: 0000000000000004 R12: ffffc900008580a0
R13: ffffc90000d272d8 R14: 0000000000000001 R15: 0000000000000001
stack_access_ok+0x22/0x270 arch/x86/kernel/unwind_orc.c:390
deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
unwind_next_frame+0x1b94/0x23a0 arch/x86/kernel/unwind_orc.c:648
arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:370 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:4123 [inline]
__kmalloc_noprof+0x1ec/0x410 mm/slub.c:4136
kmalloc_noprof include/linux/slab.h:664 [inline]
kzalloc_noprof include/linux/slab.h:778 [inline]
__cfg80211_bss_update+0x39f/0x24c0 net/wireless/scan.c:1919
cfg80211_inform_single_bss_data+0x743/0x2080 net/wireless/scan.c:2289
cfg80211_inform_bss_data+0x205/0x39d0 net/wireless/scan.c:3117
cfg80211_inform_bss_frame_data+0x271/0x7c0 net/wireless/scan.c:3207
ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226
ieee80211_scan_rx+0x47c/0xad0 net/mac80211/scan.c:340
__ieee80211_rx_handle_packet net/mac80211/rx.c:5222 [inline]
ieee80211_rx_list+0x1be1/0x2e90 net/mac80211/rx.c:5459
ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5482
ieee80211_rx include/net/mac80211.h:5093 [inline]
ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:438
tasklet_action_common.constprop.0+0x24c/0x3e0 kernel/softirq.c:785
handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
do_softirq kernel/softirq.c:455 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:442
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
ieee80211_tx_skb_tid+0x176/0x4f0 net/mac80211/tx.c:6131
ieee80211_mgmt_tx+0x14fc/0x2360 net/mac80211/offchannel.c:989
rdev_mgmt_tx net/wireless/rdev-ops.h:762 [inline]
cfg80211_mlme_mgmt_tx+0x7d4/0x1660 net/wireless/mlme.c:937
nl80211_tx_mgmt+0x7f9/0xd40 net/wireless/nl80211.c:12655
genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115
genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210
netlink_rcv_skb+0x16b/0x440 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+0x542/0x820 net/netlink/af_netlink.c:1361
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
____sys_sendmsg+0xab5/0xc90 net/socket.c:2585
___sys_sendmsg+0x135/0x1e0 net/socket.c:2639
__sys_sendmsg+0x117/0x1f0 net/socket.c:2668
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d89f75bd9
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:00007f9d8ad28048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f9d8a104038 RCX: 00007f9d89f75bd9
RDX: 0000000000000000 RSI: 0000000020001380 RDI: 000000000000000a
RBP: 00007f9d89fe4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f9d8a104038 R15: 00007ffe97eb46d8
----------------
Code disassembly (best guess):
0: be b0 01 00 00 mov $0x1b0,%esi
5: e8 a0 ff ff ff call 0xffffffaa
a: 31 c0 xor %eax,%eax
c: c3 ret
d: cc int3
e: cc int3
f: cc int3
10: cc int3
11: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
18: 00 00
1a: 90 nop
1b: 90 nop
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: 90 nop
24: 90 nop
25: 90 nop
26: 90 nop
27: 90 nop
28: 90 nop
29: 90 nop
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 65 48 8b 15 64 f4 75 mov %gs:0x7e75f464(%rip),%rdx # 0x7e75f49a
35: 7e
36: 65 8b 05 65 f4 75 7e mov %gs:0x7e75f465(%rip),%eax # 0x7e75f4a2
3d: a9 .byte 0xa9
3e: 00 01 add %al,(%rcx)