------------[ cut here ]------------
WARNING: CPU: 0 PID: 9438 at kernel/kcov.c:871 kcov_remote_start+0x5a2/0x7e0 kernel/kcov.c:871
Modules linked in:
CPU: 0 PID: 9438 Comm: syz.5.1021 Not tainted 6.10.0-rc7-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 66 cd ef 09 89 c0 48 c7 c7 c8 d4 02 00 48 03 3c c5 e0
RSP: 0018:ffffc90000006ab0 EFLAGS: 00010002
RAX: 0000000000010105 RBX: ffff888063063c00 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: ffffffff8bcacca0 RDI: ffffffff8c1fe940
RBP: 0100000000000002 R08: ffffffff92fa75ef R09: 1ffffffff25f4ebd
R10: dffffc0000000000 R11: fffffbfff25f4ebe R12: ffffffff8196315e
R13: ffff888022703300 R14: 0000000000000006 R15: ffff8880b942d4c8
FS: 00007f533f9ff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555555bdc5c8 CR3: 000000005f638000 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:__sanitizer_cov_trace_pc+0x58/0x70 kernel/kcov.c:223
Code: 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a <48> 89 44 f2 08 e9 f9 18 1a 0a 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
RSP: 0018:ffffc90000007258 EFLAGS: 00000283
RAX: ffffffff819816e4 RBX: 0000000000000005 RCX: 0000000000040000
RDX: ffffc900020a2000 RSI: 0000000000000742 RDI: 0000000000000743
RBP: 0000000000000005 R08: 0000000000000005 R09: ffffffff81981455
R10: 0000000000000020 R11: ffff888063063c00 R12: dffffc0000000000
R13: 00000000000003a8 R14: ffff8880150893b8 R15: 00000000001e2f85
rb_event_length+0x2d4/0x400 kernel/trace/ring_buffer.c:201
check_buffer+0x5cf/0xae0 kernel/trace/ring_buffer.c:3467
__rb_reserve_next kernel/trace/ring_buffer.c:3591 [inline]
rb_reserve_next_event kernel/trace/ring_buffer.c:3723 [inline]
ring_buffer_lock_reserve+0x11fc/0x2110 kernel/trace/ring_buffer.c:3782
__trace_buffer_lock_reserve kernel/trace/trace.c:1008 [inline]
trace_event_buffer_lock_reserve+0x2ab/0x6a0 kernel/trace/trace.c:2715
trace_event_buffer_reserve+0x2b7/0x3f0 kernel/trace/trace_events.c:515
trace_event_raw_event_bpf_trace_printk+0x102/0x260 kernel/trace/./bpf_trace.h:11
trace_bpf_trace_printk+0x186/0x1f0 kernel/trace/./bpf_trace.h:11
____bpf_trace_printk kernel/trace/bpf_trace.c:392 [inline]
bpf_trace_printk+0x1bf/0x230 kernel/trace/bpf_trace.c:375
bpf_prog_330576d32f01b34b+0x3f/0x6b
bpf_dispatcher_nop_func include/linux/bpf.h:1243 [inline]
__bpf_prog_run include/linux/filter.h:691 [inline]
bpf_prog_run include/linux/filter.h:698 [inline]
__bpf_trace_run kernel/trace/bpf_trace.c:2403 [inline]
bpf_trace_run3+0x33c/0x5a0 kernel/trace/bpf_trace.c:2445
trace_kmem_cache_free include/trace/events/kmem.h:114 [inline]
kmem_cache_free+0x2a9/0x350 mm/slub.c:4512
ieee80211_rx_list+0x2d18/0x3780
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
local_bh_enable include/linux/bottom_half.h:33 [inline]
bpf_test_run+0x433/0x910 net/bpf/test_run.c:426
bpf_prog_test_run_skb+0xafa/0x13a0 net/bpf/test_run.c:1072
bpf_prog_test_run+0x33c/0x3b0 kernel/bpf/syscall.c:4292
__sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5706
__do_sys_bpf kernel/bpf/syscall.c:5795 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5793 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5793
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: 0033:0x7f533ff75bd9
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:00007f533f9ff048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f5340104038 RCX: 00007f533ff75bd9
RDX: 0000000000000050 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007f533ffe4e60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f5340104038 R15: 00007ffe65bf0ea8
----------------
Code disassembly (best guess):
0: 00 74 2c 8b add %dh,-0x75(%rsp,%rbp,1)
4: 91 xchg %eax,%ecx
5: f8 clc
6: 15 00 00 83 fa adc $0xfa830000,%eax
b: 02 75 21 add 0x21(%rbp),%dh
e: 48 8b 91 00 16 00 00 mov 0x1600(%rcx),%rdx
15: 48 8b 32 mov (%rdx),%rsi
18: 48 8d 7e 01 lea 0x1(%rsi),%rdi
1c: 8b 89 fc 15 00 00 mov 0x15fc(%rcx),%ecx
22: 48 39 cf cmp %rcx,%rdi
25: 73 08 jae 0x2f
27: 48 89 3a mov %rdi,(%rdx)
* 2a: 48 89 44 f2 08 mov %rax,0x8(%rdx,%rsi,8) <-- trapping instruction
2f: e9 f9 18 1a 0a jmp 0xa1a192d
34: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
3b: 00 00 00
3e: 0f .byte 0xf
3f: 1f (bad)