------------[ cut here ]------------
WARNING: CPU: 0 PID: 7763 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871
Modules linked in:
CPU: 0 UID: 0 PID: 7763 Comm: syz.3.420 Not tainted 6.11.0-rc2-syzkaller-00027-g6a0e38264012 #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:ffffc900000067d0 EFLAGS: 00010002
RAX: 0000000080010303 RBX: ffff88807e1d8000 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffffffff8c0ae6e0 RDI: ffffffff8c605f00
RBP: 0100000000000005 R08: ffffffff9372c877 R09: 1ffffffff26e590e
R10: dffffc0000000000 R11: fffffbfff26e590f R12: ffffffff8193809e
R13: ffff88807c27a700 R14: 0000000000000006 R15: ffff8880b922d4c8
FS: 00007f432e9376c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f432e935fb8 CR3: 000000005f002000 CR4: 00000000003526f0
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:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
RIP: 0010:unwind_next_frame+0x102d/0x2a00 arch/x86/kernel/unwind_orc.c:585
Code: 84 92 01 00 00 83 fb 02 0f 85 34 02 00 00 48 89 ac 24 80 00 00 00 48 8b 04 24 48 8d 58 08 49 89 de 49 c1 ee 03 43 80 3c 2e 00 <74> 08 48 89 df e8 f9 88 b9 00 48 89 5c 24 60 48 8b 04 24 48 8b 48
RSP: 0018:ffffc90000006f68 EFLAGS: 00000246
RAX: ffffc90000007040 RBX: ffffc90000007048 RCX: 0000000000040000
RDX: 0000000000000003 RSI: ffffffff8e7a3db0 RDI: 0000000000000002
RBP: ffffffff91354c4b R08: 0000000000000005 R09: ffffffff81412746
R10: 0000000000000003 R11: ffff88807e1d8000 R12: ffffffff91354c4a
R13: dffffc0000000000 R14: 1ffff92000000e09 R15: 1ffff92000000e08
arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
__kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
kasan_slab_free include/linux/kasan.h:184 [inline]
slab_free_hook mm/slub.c:2252 [inline]
slab_free mm/slub.c:4473 [inline]
kmem_cache_free+0x145/0x350 mm/slub.c:4548
ieee80211_rx_handlers+0x3f3d/0xb830 net/mac80211/rx.c:4211
ieee80211_invoke_rx_handlers net/mac80211/rx.c:4238 [inline]
ieee80211_prepare_and_rx_handle+0x31ab/0x6360 net/mac80211/rx.c:5086
__ieee80211_rx_handle_packet net/mac80211/rx.c:5327 [inline]
ieee80211_rx_list+0x2ce0/0x3780 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: 0033:0x7f432db779f9
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:00007f432e937038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f432dd05f80 RCX: 00007f432db779f9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000007
RBP: 00007f432dbe58ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f432dd05f80 R15: 00007f432de2fa38
----------------
Code disassembly (best guess):
0: 84 92 01 00 00 83 test %dl,-0x7cffffff(%rdx)
6: fb sti
7: 02 0f add (%rdi),%cl
9: 85 34 02 test %esi,(%rdx,%rax,1)
c: 00 00 add %al,(%rax)
e: 48 89 ac 24 80 00 00 mov %rbp,0x80(%rsp)
15: 00
16: 48 8b 04 24 mov (%rsp),%rax
1a: 48 8d 58 08 lea 0x8(%rax),%rbx
1e: 49 89 de mov %rbx,%r14
21: 49 c1 ee 03 shr $0x3,%r14
25: 43 80 3c 2e 00 cmpb $0x0,(%r14,%r13,1)
* 2a: 74 08 je 0x34 <-- trapping instruction
2c: 48 89 df mov %rbx,%rdi
2f: e8 f9 88 b9 00 call 0xb9892d
34: 48 89 5c 24 60 mov %rbx,0x60(%rsp)
39: 48 8b 04 24 mov (%rsp),%rax
3d: 48 rex.W
3e: 8b .byte 0x8b
3f: 48 rex.W