mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 0-....: (6 ticks this GP) idle=fd3/1/0x4000000000000002 softirq=204907/204907 fqs=26227
(detected by 1, t=105002 jiffies, g=210825, q=34376)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 6251 Comm: syz-executor.0 Not tainted 5.16.0-rc8-next-20220107 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
RIP: 0010:native_apic_mem_read arch/x86/include/asm/apic.h:114 [inline]
RIP: 0010:__xapic_wait_icr_idle arch/x86/kernel/apic/ipi.c:107 [inline]
RIP: 0010:__default_send_IPI_shortcut arch/x86/kernel/apic/ipi.c:128 [inline]
RIP: 0010:default_send_IPI_self+0x25/0xf0 arch/x86/kernel/apic/ipi.c:242
Code: 00 00 00 00 90 55 53 83 ff 02 74 59 a0 60 f8 eb ff ff fb ff ff 89 fb 84 c0 74 08 3c 03 0f 8e 8f 00 00 00 8b 04 25 00 c3 5f ff <48> bd 60 f8 eb ff ff fb ff ff f6 c4 10 74 1a f3 90 0f b6 45 00 84
RSP: 0018:ffff8880417ff2b0 EFLAGS: 00000046
RAX: 00000000000400f6 RBX: 00000000000000f6 RCX: ffffffff81082b73
RDX: 1ffffffff09e0393 RSI: 0000000000000008 RDI: 00000000000000f6
RBP: ffffffff84f01c40 R08: 0000000000000000 R09: ffffffff858c9c07
R10: fffffbfff0b19380 R11: 0000000000000001 R12: ffff88806ce38838
R13: ffff88806ce38830 R14: ffff88806ce389e8 R15: ffff8880417ff380
FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000005026000 CR4: 0000000000350ef0
Call Trace:
arch_irq_work_raise+0x98/0x120 arch/x86/kernel/irq_work.c:31
__irq_work_queue_local+0x14e/0x180 kernel/irq_work.c:102
irq_work_queue_on+0x121/0x130 kernel/irq_work.c:165
rcu_read_unlock_special kernel/rcu/tree_plugin.h:665 [inline]
__rcu_read_unlock+0x415/0x510 kernel/rcu/tree_plugin.h:424
rcu_read_unlock include/linux/rcupdate.h:726 [inline]
__perf_event_output kernel/events/core.c:7519 [inline]
perf_event_output_forward+0x149/0x280 kernel/events/core.c:7528
__perf_event_overflow+0x13f/0x3d0 kernel/events/core.c:9228
perf_swevent_overflow kernel/events/core.c:9304 [inline]
perf_swevent_event+0x344/0x550 kernel/events/core.c:9332
perf_tp_event+0x2e5/0xbc0 kernel/events/core.c:9760
perf_trace_run_bpf_submit+0xf5/0x1d0 kernel/events/core.c:9734
perf_trace_preemptirq_template+0x289/0x440 include/trace/events/preemptirq.h:14
trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
trace_irq_enable_rcuidle include/trace/events/preemptirq.h:40 [inline]
trace_hardirqs_on+0x138/0x190 kernel/trace/trace_preemptirq.c:44
asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline]
RIP: 0010:__rcu_read_unlock+0xc4/0x510 kernel/rcu/tree_plugin.h:427
Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 93 01 00 00 8b 85 f8 03 00 00 85 c0 75 54 <65> 48 8b 1c 25 40 6f 02 00 48 8d bb f4 03 00 00 48 b8 00 00 00 00
RSP: 0018:ffff8880417ff9a0 EFLAGS: 00000202
RAX: 000000000000097f RBX: ffffffff8520bd80 RCX: 1ffffffff0d4367e
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff86a14817
R10: fffffbfff0d42902 R11: 0000000000000001 R12: ffff88806ce38800
R13: ffff8880417ffc00 R14: 0000000000000200 R15: dffffc0000000000
rcu_read_unlock+0xe/0x60 include/linux/rcupdate.h:726
zap_pte_range mm/memory.c:1358 [inline]
zap_pmd_range mm/memory.c:1468 [inline]
zap_pud_range mm/memory.c:1497 [inline]
zap_p4d_range mm/memory.c:1518 [inline]
unmap_page_range+0xd36/0x2380 mm/memory.c:1539
unmap_single_vma+0x198/0x310 mm/memory.c:1584
unmap_vmas+0x16b/0x2f0 mm/memory.c:1616
exit_mmap+0x1d0/0x630 mm/mmap.c:3179
__mmput kernel/fork.c:1116 [inline]
mmput+0xc8/0x380 kernel/fork.c:1137
exit_mm kernel/exit.c:507 [inline]
do_exit+0xa3c/0x2840 kernel/exit.c:780
do_group_exit+0x128/0x330 kernel/exit.c:932
__do_sys_exit_group kernel/exit.c:943 [inline]
__se_sys_exit_group kernel/exit.c:941 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:941
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff8a4d7ab19
Code: Unable to access opcode bytes at RIP 0x7ff8a4d7aaef.
RSP: 002b:00007ffd7bb56348 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007ff8a4d7ab19
RDX: 00007ff8a4d2d72b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2dc20d68 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd7bb56430
rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-... } 108717 jiffies s: 1097 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Task dump for CPU 0:
task:syz-executor.0 state:R running task stack:26616 pid: 6251 ppid: 298 flags:0x00004008
Call Trace:
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 90 nop
5: 55 push %rbp
6: 53 push %rbx
7: 83 ff 02 cmp $0x2,%edi
a: 74 59 je 0x65
c: a0 60 f8 eb ff ff fb movabs 0xfffffbffffebf860,%al
13: ff ff
15: 89 fb mov %edi,%ebx
17: 84 c0 test %al,%al
19: 74 08 je 0x23
1b: 3c 03 cmp $0x3,%al
1d: 0f 8e 8f 00 00 00 jle 0xb2
23: 8b 04 25 00 c3 5f ff mov 0xffffffffff5fc300,%eax
* 2a: 48 bd 60 f8 eb ff ff movabs $0xfffffbffffebf860,%rbp <-- trapping instruction
31: fb ff ff
34: f6 c4 10 test $0x10,%ah
37: 74 1a je 0x53
39: f3 90 pause
3b: 0f b6 45 00 movzbl 0x0(%rbp),%eax
3f: 84 .byte 0x84