------------[ cut here ]------------
WARNING: CPU: 1 PID: 6295 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871
Modules linked in:
CPU: 1 UID: 0 PID: 6295 Comm: syz.4.294 Not tainted 6.10.0-rc6-next-20240703-syzkaller #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 c6 a8 fd 09 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 40
RSP: 0018:ffffc90000a17670 EFLAGS: 00010002
RAX: 0000000080010102 RBX: ffff888065551e00 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffffffff8bcada80 RDI: ffffffff8c207f20
RBP: 0100000000000004 R08: ffffffff930107f7 R09: 1ffffffff26020fe
R10: dffffc0000000000 R11: fffffbfff26020ff R12: ffffffff81938d8e
R13: ffff888028cebf00 R14: 0000000000000006 R15: ffff8880b952d4c8
FS: 00007f8daf7ba6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8daeb05a6c CR3: 000000005ea12000 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:stackdepot_memcmp lib/stackdepot.c:528 [inline]
RIP: 0010:find_stack lib/stackdepot.c:561 [inline]
RIP: 0010:stack_depot_save_flags+0x1b4/0x830 lib/stackdepot.c:618
Code: 49 89 e9 8b 6c 24 04 48 89 da 4c 8b 44 24 08 45 85 e4 75 68 4d 8b 3f 49 39 d7 74 5d 45 39 77 10 75 f2 45 39 4f 14 75 ec 31 c0 <49> 8b 0c c0 49 3b 4c c7 20 75 df 48 ff c0 41 39 c5 75 ed 40 f6 c5
RSP: 0018:ffffc90000a17e10 EFLAGS: 00000202
RAX: 000000000000001c RBX: 00000000071f3ffb RCX: ffffffff8b90bbe3
RDX: ffff88823bb73fa0 RSI: 0000000000000001 RDI: 00000000ad43126e
RBP: 0000000000000001 R08: ffffc90000a17e70 R09: 000000000000001d
R10: dffffc0000000000 R11: fffffbfff1f5ef4e R12: 0000000000000920
R13: 000000000000001d R14: 00000000611f73fa R15: ffff88807af349b0
kasan_save_stack mm/kasan/common.c:48 [inline]
kasan_save_track+0x51/0x80 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:4158 [inline]
__kmalloc_noprof+0x1fc/0x400 mm/slub.c:4170
kmalloc_noprof include/linux/slab.h:684 [inline]
kzalloc_noprof include/linux/slab.h:806 [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:5223 [inline]
ieee80211_rx_list+0x2b02/0x3780 net/mac80211/rx.c:5460
ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5483
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+0x264/0x420 net/mac80211/tx.c:6129
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:12710
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: 0033:0x7f8dae975bd9
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:00007f8daf7ba048 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8daeb04038 RCX: 00007f8dae975bd9
RDX: 0000000000000000 RSI: 0000000020000440 RDI: 0000000000000004
RBP: 00007f8dae9e4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f8daeb04038 R15: 00007ffc891cf9a8
----------------
Code disassembly (best guess):
0: 49 89 e9 mov %rbp,%r9
3: 8b 6c 24 04 mov 0x4(%rsp),%ebp
7: 48 89 da mov %rbx,%rdx
a: 4c 8b 44 24 08 mov 0x8(%rsp),%r8
f: 45 85 e4 test %r12d,%r12d
12: 75 68 jne 0x7c
14: 4d 8b 3f mov (%r15),%r15
17: 49 39 d7 cmp %rdx,%r15
1a: 74 5d je 0x79
1c: 45 39 77 10 cmp %r14d,0x10(%r15)
20: 75 f2 jne 0x14
22: 45 39 4f 14 cmp %r9d,0x14(%r15)
26: 75 ec jne 0x14
28: 31 c0 xor %eax,%eax
* 2a: 49 8b 0c c0 mov (%r8,%rax,8),%rcx <-- trapping instruction
2e: 49 3b 4c c7 20 cmp 0x20(%r15,%rax,8),%rcx
33: 75 df jne 0x14
35: 48 ff c0 inc %rax
38: 41 39 c5 cmp %eax,%r13d
3b: 75 ed jne 0x2a
3d: 40 rex
3e: f6 .byte 0xf6
3f: c5 .byte 0xc5