rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...0: (2 GPs behind) idle=6a9/1/0x4000000000000000 softirq=9645/9647 fqs=5250 
	(detected by 1, t=10502 jiffies, g=12197, q=532)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5172 Comm: dhcpcd-run-hook Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:172 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:227 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp8+0xc/0x80 kernel/kcov.c:273
Code: 08 04 00 00 00 48 89 44 0a 10 48 89 74 0a 18 4c 89 44 0a 20 49 ff c1 4c 89 09 c3 0f 1f 00 4c 8b 04 24 65 48 8b 0d 14 d1 81 7e <65> 8b 05 15 d1 81 7e 25 00 01 ff 00 74 10 3d 00 01 00 00 75 57 83
RSP: 0018:ffffc90000007d20 EFLAGS: 00000046
RAX: ffffffff8439048f RBX: 0000000000000001 RCX: ffff8880299c3b80
RDX: 0000000000010000 RSI: ffff888028690b40 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffffff843904b4 R09: fffffbfff1c153f6
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110050d2168
R13: ffff888028690b40 R14: ffff8880b8e2a3d0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7ad7abf5e8 CR3: 000000002095a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 timerqueue_del+0x44/0xf0 lib/timerqueue.c:55
 __remove_hrtimer kernel/time/hrtimer.c:1117 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1668 [inline]
 __hrtimer_run_queues+0x3e9/0xcf0 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:171 [inline]
RIP: 0010:unwind_next_frame+0x22f/0x1fa0 arch/x86/kernel/unwind_orc.c:448
Code: 85 b4 88 17 8f 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 42 17 00 00 44 8b 03 41 ff c0 4b 8d 04 64 48 8d b4 00 80 bf 7c 8e <48> c7 c0 b2 88 17 8f 48 39 c6 0f 83 7d 15 00 00 4b 8d 0c 40 48 8d
RSP: 0018:ffffc90002eaf288 EFLAGS: 00000202
RAX: 00000000000849e4 RBX: ffffffff8f1ae704 RCX: 000000000009807f
RDX: dffffc0000000000 RSI: ffffffff8e8d5348 RDI: ffffffff8138b9ab
RBP: 000000000000d793 R08: 000000000002c34f R09: ffffc90002eaf430
R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000002c34c
R13: ffffffff81d793b2 R14: 000000000009807f R15: ffffc90002eaf340
 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kmem_cache_free+0x91/0x1f0 mm/slub.c:3515
 remove_vma mm/mmap.c:187 [inline]
 exit_mmap+0x4ff/0x620 mm/mmap.c:3215
 __mmput+0x112/0x3b0 kernel/fork.c:1127
 exec_mmap+0x543/0x630 fs/exec.c:1035
 begin_new_exec+0x82b/0x11b0 fs/exec.c:1293
 load_elf_binary+0x945/0x2750 fs/binfmt_elf.c:1001
 search_binary_handler fs/exec.c:1742 [inline]
 exec_binprm fs/exec.c:1783 [inline]
 bprm_execve+0x8fd/0x17c0 fs/exec.c:1852
 do_execveat_common+0x583/0x720 fs/exec.c:1957
 do_execve fs/exec.c:2027 [inline]
 __do_sys_execve fs/exec.c:2103 [inline]
 __se_sys_execve fs/exec.c:2098 [inline]
 __x64_sys_execve+0x8e/0xa0 fs/exec.c:2098
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7ad7a0cef7
Code: Unable to access opcode bytes at RIP 0x7f7ad7a0cecd.
RSP: 002b:00007ffef0def948 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 000055fe6072dec0 RCX: 00007f7ad7a0cef7
RDX: 000055fe6072df08 RSI: 000055fe6072dec0 RDI: 000055fe6072df98
RBP: 000055fe6072df98 R08: 000055fe6072df9d R09: 00007ffef0df3e82
R10: 00007f7ad7c05088 R11: 0000000000000246 R12: 000055fe6072df08
R13: 00007f7ad7bba904 R14: 000055fe6072df08 R15: 0000000000000000
 </TASK>