------------[ cut here ]------------
WARNING: CPU: 0 PID: 9711 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871
Modules linked in:
CPU: 0 UID: 0 PID: 9711 Comm: syz.3.1503 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 96 d2 19 0a 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 40
RSP: 0018:ffffc90000006250 EFLAGS: 00010002
RAX: 0000000000010303 RBX: ffff88805fd01e00 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffffffff8beae6e0 RDI: ffffffff8c3f8940
RBP: 0100000000000001 R08: ffffffff934ee877 R09: 1ffffffff269dd0e
R10: dffffc0000000000 R11: fffffbfff269dd0f R12: ffffffff81937ffe
R13: ffff8880209e8c00 R14: 0000000000000006 R15: ffff8880b922d4c8
FS: 00007fd20c3596c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200013c0 CR3: 0000000067b3c000 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:__orc_find arch/x86/kernel/unwind_orc.c:100 [inline]
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
RIP: 0010:unwind_next_frame+0x4d6/0x2a00 arch/x86/kernel/unwind_orc.c:494
Code: 00 00 00 00 00 fc ff df e9 96 01 00 00 49 89 df 48 89 5c 24 28 49 89 dd 4c 8b 74 24 38 4c 89 e0 4c 29 e8 48 89 c1 48 c1 f9 02 <48> c1 e8 3f 48 01 c8 48 83 e0 fe 49 8d 5c 45 00 48 89 d8 48 c1 e8
RSP: 0018:ffffc900000069e8 EFLAGS: 00000206
RAX: 000000000000000c RBX: ffffffff906c5174 RCX: 0000000000000003
RDX: ffffc90002121000 RSI: 0000000000000bc0 RDI: 0000000000000bc1
RBP: ffffffff8b279eb6 R08: ffffffff81411c60 R09: ffffc90000006bb0
R10: 0000000000000003 R11: ffffffff817f1c90 R12: ffffffff906c5170
R13: ffffffff906c5164 R14: ffffffff8b279e23 R15: ffffffff906c5164
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
__kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
kvfree_call_rcu+0xfc/0x790 kernel/rcu/tree.c:3815
cfg80211_update_known_bss+0xb39/0x1500 net/wireless/scan.c:1891
__cfg80211_bss_update+0x153/0x2170 net/wireless/scan.c:1937
cfg80211_inform_single_bss_data+0xd51/0x2030 net/wireless/scan.c:2331
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: 0033:0x7fd20b5779f9
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:00007fd20c359038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd20b705f80 RCX: 00007fd20b5779f9
RDX: 0000000000000000 RSI: 0000000020001380 RDI: 0000000000000004
RBP: 00007fd20b5e58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd20b705f80 R15: 00007fff1c37a938
----------------
Code disassembly (best guess), 7 bytes skipped:
0: df e9 fucomip %st(1),%st
2: 96 xchg %eax,%esi
3: 01 00 add %eax,(%rax)
5: 00 49 89 add %cl,-0x77(%rcx)
8: df 48 89 fisttps -0x77(%rax)
b: 5c pop %rsp
c: 24 28 and $0x28,%al
e: 49 89 dd mov %rbx,%r13
11: 4c 8b 74 24 38 mov 0x38(%rsp),%r14
16: 4c 89 e0 mov %r12,%rax
19: 4c 29 e8 sub %r13,%rax
1c: 48 89 c1 mov %rax,%rcx
1f: 48 c1 f9 02 sar $0x2,%rcx
* 23: 48 c1 e8 3f shr $0x3f,%rax <-- trapping instruction
27: 48 01 c8 add %rcx,%rax
2a: 48 83 e0 fe and $0xfffffffffffffffe,%rax
2e: 49 8d 5c 45 00 lea 0x0(%r13,%rax,2),%rbx
33: 48 89 d8 mov %rbx,%rax
36: 48 rex.W
37: c1 .byte 0xc1
38: e8 .byte 0xe8