last executing test programs: kernel console output (not intermixed with test programs): syzkaller login: [ 53.329513][ T29] kauditd_printk_skb: 10 callbacks suppressed [ 53.333342][ T29] audit: type=1400 audit(53.240:56): avc: denied { read write } for pid=3089 comm="sftp-server" name="null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 53.339551][ T29] audit: type=1400 audit(53.250:57): avc: denied { open } for pid=3089 comm="sftp-server" path="/dev/null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 Warning: Permanently added '[localhost]:61539' (ED25519) to the list of known hosts. [ 70.562387][ T29] audit: type=1400 audit(70.480:58): avc: denied { name_bind } for pid=3092 comm="sshd-session" src=30000 scontext=system_u:system_r:sshd_t tcontext=system_u:object_r:unreserved_port_t tclass=tcp_socket permissive=1 [ 71.670776][ T29] audit: type=1400 audit(71.570:59): avc: denied { execute } for pid=3093 comm="sh" name="syz-executor" dev="vda" ino=805 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 71.682158][ T29] audit: type=1400 audit(71.590:60): avc: denied { execute_no_trans } for pid=3093 comm="sh" path="/syz-executor" dev="vda" ino=805 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 75.787054][ T29] audit: type=1400 audit(75.680:61): avc: denied { mounton } for pid=3093 comm="syz-executor" path="/syzcgroup/unified" dev="vda" ino=806 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 75.795813][ T29] audit: type=1400 audit(75.710:62): avc: denied { mount } for pid=3093 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 75.813953][ T3093] cgroup: Unknown subsys name 'net' [ 75.824756][ T29] audit: type=1400 audit(75.740:63): avc: denied { unmount } for pid=3093 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 76.108725][ T3093] cgroup: Unknown subsys name 'cpuset' [ 76.116105][ T3093] cgroup: Unknown subsys name 'hugetlb' [ 76.116934][ T3093] cgroup: Unknown subsys name 'rlimit' [ 528.270402][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 430s! [migration/0:18] [ 528.270771][ C0] Modules linked in: [ 528.271700][ C0] CPU: 0 UID: 0 PID: 18 Comm: migration/0 Not tainted syzkaller #0 PREEMPT [ 528.271954][ C0] Hardware name: ARM-Versatile Express [ 528.272151][ C0] Stopper: multi_cpu_stop+0x0/0x16c <- __stop_cpus.constprop.0+0x64/0xa4 [ 528.272942][ C0] PC is at multi_cpu_stop+0xd8/0x16c [ 528.273003][ C0] LR is at multi_cpu_stop+0xd8/0x16c [ 528.273074][ C0] pc : [<803736f4>] lr : [<803736f4>] psr: 60000013 [ 528.273126][ C0] sp : df861ed8 ip : df861ed8 fp : df861f0c [ 528.273169][ C0] r10: 00000001 r9 : 00000000 r8 : 00000001 [ 528.273217][ C0] r7 : 8280c6d0 r6 : df9b1cc4 r5 : df9b1cd8 r4 : 00000001 [ 528.273269][ C0] r3 : 00000001 r2 : 00000000 r1 : 00000008 r0 : 8280c6d0 [ 528.273401][ C0] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 528.273486][ C0] Control: 30c5387d Table: 84c78600 DAC: fffffffd [ 528.273604][ C0] Call trace: [ 528.273883][ C0] [<8037361c>] (multi_cpu_stop) from [<803730fc>] (cpu_stopper_thread+0x90/0x130) [ 528.274243][ C0] r10:df9b1c8c r9:83215400 r8:dddc7574 r7:dddc756c r6:8037361c r5:dddc7568 [ 528.274316][ C0] r4:df9b1cc4 [ 528.274418][ C0] [<8037306c>] (cpu_stopper_thread) from [<80288100>] (smpboot_thread_fn+0x108/0x2f0) [ 528.274517][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000001 r6:828fd6d0 r5:830c1000 [ 528.274544][ C0] r4:83215400 [ 528.274563][ C0] [<80287ff8>] (smpboot_thread_fn) from [<8027f5fc>] (kthread+0x12c/0x280) [ 528.274645][ C0] r9:830c1000 r8:80287ff8 r7:df819de0 r6:830bf400 r5:83215400 r4:00000001 [ 528.274700][ C0] [<8027f4d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 528.275010][ C0] Exception stack(0xdf861fb0 to 0xdf861ff8) [ 528.275256][ C0] 1fa0: 00000000 00000000 00000000 00000000 [ 528.275328][ C0] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 528.275369][ C0] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 528.275459][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f4d0 [ 528.275487][ C0] r4:830c1040 [ 528.275850][ C0] Sending NMI from CPU 0 to CPUs 1: [ 528.276564][ C1] NMI backtrace for cpu 1 [ 528.276736][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT [ 528.276794][ C1] Hardware name: ARM-Versatile Express [ 528.276817][ C1] PC is at _raw_spin_lock+0x40/0x58 [ 528.276908][ C1] LR is at _raw_spin_lock+0x18/0x58 [ 528.276938][ C1] pc : [<81abbc34>] lr : [<81abbc0c>] psr: 80030113 [ 528.276961][ C1] sp : df805d68 ip : df805d68 fp : df805d7c [ 528.276980][ C1] r10: 81c05450 r9 : 84049840 r8 : 83ff7688 [ 528.277000][ C1] r7 : 84049968 r6 : 00000000 r5 : 00000001 r4 : 84049968 [ 528.277022][ C1] r3 : 0000303e r2 : 0000303f r1 : 00000000 r0 : 00000001 [ 528.277045][ C1] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 528.277099][ C1] Control: 30c5387d Table: 850287c0 DAC: 00000000 [ 528.277119][ C1] Call trace: frame pointer underflow [ 528.277209][ C1] [<81abbbf4>] (_raw_spin_lock) from [<809c77ac>] (gpio_mmio_set+0x44/0x80) [ 528.277293][ C1] r5:00000001 r4:84049840 [ 528.277311][ C1] [<809c7768>] (gpio_mmio_set) from [<809b7f68>] (gpiochip_set+0x1c/0x44) [ 528.277380][ C1] r7:00000000 r6:00000000 r5:00000000 r4:83f1b180 [ 528.277397][ C1] [<809b7f4c>] (gpiochip_set) from [<809ba830>] (gpiod_set_raw_value_commit+0x78/0x218) [ 528.277451][ C1] [<809ba7b8>] (gpiod_set_raw_value_commit) from [<809bc0d0>] (gpiod_set_value_nocheck+0x44/0x58) [ 528.277521][ C1] r10:81c05450 r9:df805ebc r8:00000102 r7:ffffa896 r6:00000032 r5:00000000 [ 528.277554][ C1] r4:83f1b180 [ 528.277570][ C1] [<809bc08c>] (gpiod_set_value_nocheck) from [<809bc120>] (gpiod_set_value+0x3c/0x88) [ 528.277620][ C1] [<809bc0e4>] (gpiod_set_value) from [<809cc8bc>] (gpio_led_set+0x5c/0x60) [ 528.277675][ C1] r5:83307844 r4:83307844 [ 528.277691][ C1] [<809cc860>] (gpio_led_set) from [<809ca154>] (led_set_brightness_nosleep+0x38/0x44) [ 528.277746][ C1] r5:83307844 r4:84b4090c [ 528.277762][ C1] [<809ca11c>] (led_set_brightness_nosleep) from [<809cd1b8>] (led_heartbeat_function+0x84/0x144) [ 528.277813][ C1] [<809cd134>] (led_heartbeat_function) from [<80326f70>] (call_timer_fn+0x30/0x220) [ 528.277889][ C1] r7:ffffa896 r6:809cd134 r5:84b4090c r4:83216000 [ 528.277908][ C1] [<80326f40>] (call_timer_fn) from [<80327424>] (__run_timers+0x2c4/0x3f8) [ 528.277970][ C1] r9:df805ebc r8:ffffa896 r7:00000000 r6:809cd134 r5:dddd9f00 r4:84b4090c [ 528.277990][ C1] [<80327160>] (__run_timers) from [<803275c0>] (run_timer_base+0x68/0x78) [ 528.278053][ C1] r10:83216000 r9:82804d80 r8:00000102 r7:00000001 r6:00000082 r5:00000002 [ 528.278075][ C1] r4:dddd9f00 [ 528.278100][ C1] [<80327558>] (run_timer_base) from [<803275ec>] (run_timer_softirq+0x1c/0x34) [ 528.278165][ C1] r4:82804084 [ 528.278182][ C1] [<803275d0>] (run_timer_softirq) from [<8025b55c>] (handle_softirqs+0x140/0x458) [ 528.278244][ C1] [<8025b41c>] (handle_softirqs) from [<8025b9d0>] (__irq_exit_rcu+0x110/0x1d0) [ 528.278318][ C1] r10:00000000 r9:83216000 r8:00000000 r7:df865e08 r6:82443ff8 r5:8247f12c [ 528.278363][ C1] r4:83216000 [ 528.278380][ C1] [<8025b8c0>] (__irq_exit_rcu) from [<8025bd48>] (irq_exit+0x10/0x18) [ 528.278446][ C1] r5:8247f12c r4:826c3a9c [ 528.278466][ C1] [<8025bd38>] (irq_exit) from [<81aad6a4>] (generic_handle_arch_irq+0x7c/0x80) [ 528.278534][ C1] [<81aad628>] (generic_handle_arch_irq) from [<81a7d654>] (call_with_stack+0x1c/0x20) [ 528.278607][ C1] r9:83216000 r8:83ff7688 r7:df865e3c r6:ffffffff r5:60030013 r4:809c7fac [ 528.278629][ C1] [<81a7d638>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc) [ 528.278728][ C1] Exception stack(0xdf865e08 to 0xdf865e50) [ 528.278770][ C1] 5e00: e0085008 0000000d 0000303e 00000000 e0085008 0000000d [ 528.278954][ C1] 5e20: 00000001 84049968 83ff7688 84049840 00000000 df865e6c df865e58 df865e58 [ 528.278999][ C1] 5e40: 809c7fa8 809c7fac 60030013 ffffffff [ 528.279024][ C1] [<809c7f8c>] (gpio_mmio_write32) from [<809c77cc>] (gpio_mmio_set+0x64/0x80) [ 528.279101][ C1] r5:00000008 r4:84049840 [ 528.279120][ C1] [<809c7768>] (gpio_mmio_set) from [<809b7f68>] (gpiochip_set+0x1c/0x44) [ 528.279198][ C1] r7:00000001 r6:00000000 r5:00000003 r4:83f1b1bc [ 528.279220][ C1] [<809b7f4c>] (gpiochip_set) from [<809ba830>] (gpiod_set_raw_value_commit+0x78/0x218) [ 528.279284][ C1] [<809ba7b8>] (gpiod_set_raw_value_commit) from [<809bc0d0>] (gpiod_set_value_nocheck+0x44/0x58) [ 528.279368][ C1] r10:00000000 r9:00000000 r8:00000001 r7:ddde24c0 r6:83385f18 r5:00000001 [ 528.279393][ C1] r4:83f1b1bc [ 528.279409][ C1] [<809bc08c>] (gpiod_set_value_nocheck) from [<809bc120>] (gpiod_set_value+0x3c/0x88) [ 528.279469][ C1] [<809bc0e4>] (gpiod_set_value) from [<809cc8bc>] (gpio_led_set+0x5c/0x60) [ 528.279533][ C1] r5:000000ff r4:83307b14 [ 528.279554][ C1] [<809cc860>] (gpio_led_set) from [<809ca1e4>] (led_set_brightness+0x84/0x90) [ 528.279648][ C1] r5:000000ff r4:83307b14 [ 528.279715][ C1] [<809ca160>] (led_set_brightness) from [<809cbd64>] (led_trigger_event+0x40/0x58) [ 528.279792][ C1] r5:000000ff r4:83307b14 [ 528.279813][ C1] [<809cbd24>] (led_trigger_event) from [<809cd3c0>] (ledtrig_cpu+0xac/0xf4) [ 528.279896][ C1] r7:ddde24c0 r6:00000002 r5:82b15cd8 r4:000001fd [ 528.279918][ C1] [<809cd314>] (ledtrig_cpu) from [<80227a38>] (arch_cpu_idle_exit+0x14/0x18) [ 528.280012][ C1] r9:00000000 r8:00000001 r7:8280c710 r6:83216000 r5:8280c6d0 r4:00000001 [ 528.280038][ C1] [<80227a24>] (arch_cpu_idle_exit) from [<802b158c>] (do_idle+0x5c/0x2d8) [ 528.280113][ C1] [<802b1530>] (do_idle) from [<802b1b38>] (cpu_startup_entry+0x30/0x34) [ 528.280190][ C1] r10:00000000 r9:414fc0f0 r8:80003000 r7:82a7b4a4 r6:83216000 r5:00000001 [ 528.280213][ C1] r4:00000092 [ 528.280230][ C1] [<802b1b08>] (cpu_startup_entry) from [<8022f360>] (secondary_start_kernel+0x128/0x194) [ 528.280306][ C1] [<8022f238>] (secondary_start_kernel) from [<80220094>] (__enable_mmu+0x0/0xc) [ 528.280403][ C1] r7:82a7b4a4 r6:30c0387d r5:00000000 r4:830b7bc0 [ 528.282328][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 528.337545][ C0] CPU: 0 UID: 0 PID: 18 Comm: migration/0 Tainted: G L syzkaller #0 PREEMPT [ 528.338210][ C0] Tainted: [L]=SOFTLOCKUP [ 528.338448][ C0] Hardware name: ARM-Versatile Express [ 528.338736][ C0] Stopper: multi_cpu_stop+0x0/0x16c <- __stop_cpus.constprop.0+0x64/0xa4 [ 528.339184][ C0] Call trace: frame pointer underflow [ 528.339584][ C0] [<80201a74>] (dump_backtrace) from [<80201b70>] (show_stack+0x18/0x1c) [ 528.340296][ C0] r7:82296540 r6:83215400 r5:00000000 r4:822956f0 [ 528.340569][ C0] [<80201b58>] (show_stack) from [<8021ee08>] (dump_stack_lvl+0x54/0x7c) [ 528.340947][ C0] [<8021edb4>] (dump_stack_lvl) from [<8021ee48>] (dump_stack+0x18/0x1c) [ 528.341328][ C0] r5:00000000 r4:82a7bd14 [ 528.341529][ C0] [<8021ee30>] (dump_stack) from [<80202648>] (vpanic+0xe0/0x2e8) [ 528.341865][ C0] [<80202568>] (vpanic) from [<80202884>] (trace_suspend_resume+0x0/0xd8) [ 528.342212][ C0] r7:82ac27f8 [ 528.342369][ C0] [<80202850>] (panic) from [<80383f14>] (watchdog_timer_fn+0x2dc/0x350) [ 528.342743][ C0] r3:00000001 r2:00004000 r1:82a7bd1c r0:82296540 [ 528.342990][ C0] [<80383c38>] (watchdog_timer_fn) from [<80329b64>] (__hrtimer_run_queues+0x1c4/0x454) [ 528.343399][ C0] r10:83215400 r9:00000000 r8:dddc7130 r7:80383c38 r6:dddc7000 r5:dddc7040 [ 528.343724][ C0] r4:dddc75d8 [ 528.343897][ C0] [<803299a0>] (__hrtimer_run_queues) from [<8032b168>] (hrtimer_interrupt+0x148/0x2bc) [ 528.344252][ C0] r10:fa97abf0 r9:dddc7180 r8:dddc7130 r7:0000007a r6:00000003 r5:20000193 [ 528.344574][ C0] r4:dddc7000 [ 528.344741][ C0] [<8032b020>] (hrtimer_interrupt) from [<81340630>] (arch_timer_handler_virt+0x30/0x38) [ 528.345204][ C0] r10:81d0fc78 r9:8309e400 r8:00000000 r7:00000000 r6:00000000 r5:82498528 [ 528.345530][ C0] r4:8309de40 [ 528.345709][ C0] [<81340600>] (arch_timer_handler_virt) from [<802ef9b4>] (handle_percpu_devid_irq+0x128/0x34c) [ 528.346156][ C0] [<802ef88c>] (handle_percpu_devid_irq) from [<802e8b44>] (handle_irq_desc+0x74/0x84) [ 528.346573][ C0] r10:00000001 r9:83215400 r8:00000000 r7:df80a00c r6:826c2388 r5:df80a000 [ 528.346925][ C0] r4:8280cc44 [ 528.347116][ C0] [<802e8ad0>] (handle_irq_desc) from [<802e8bc0>] (generic_handle_domain_irq+0x18/0x1c) [ 528.347529][ C0] [<802e8ba8>] (generic_handle_domain_irq) from [<802012c8>] (gic_handle_irq+0x68/0x7c) [ 528.347924][ C0] [<80201260>] (gic_handle_irq) from [<81aad688>] (generic_handle_arch_irq+0x60/0x80) [ 528.348349][ C0] r7:df861e88 r6:82443ff8 r5:8247f12c r4:826c3a9c [ 528.348599][ C0] [<81aad628>] (generic_handle_arch_irq) from [<81a7d654>] (call_with_stack+0x1c/0x20) [ 528.349009][ C0] r9:83215400 r8:00000001 r7:df861ebc r6:ffffffff r5:60000013 r4:803736f4 [ 528.349330][ C0] [<81a7d638>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc) [ 528.349882][ C0] Exception stack(0xdf861e88 to 0xdf861ed0) [ 528.350160][ C0] 1e80: 8280c6d0 00000008 00000000 00000001 00000001 df9b1cd8 [ 528.350808][ C0] 1ea0: df9b1cc4 8280c6d0 00000001 00000000 00000001 df861f0c df861ed8 df861ed8 [ 528.351152][ C0] 1ec0: 803736f4 803736f4 60000013 ffffffff [ 528.351392][ C0] [<8037361c>] (multi_cpu_stop) from [<803730fc>] (cpu_stopper_thread+0x90/0x130) [ 528.351798][ C0] r10:df9b1c8c r9:83215400 r8:dddc7574 r7:dddc756c r6:8037361c r5:dddc7568 [ 528.352109][ C0] r4:df9b1cc4 [ 528.352260][ C0] [<8037306c>] (cpu_stopper_thread) from [<80288100>] (smpboot_thread_fn+0x108/0x2f0) [ 528.352643][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000001 r6:828fd6d0 r5:830c1000 [ 528.352954][ C0] r4:83215400 [ 528.353131][ C0] [<80287ff8>] (smpboot_thread_fn) from [<8027f5fc>] (kthread+0x12c/0x280) [ 528.353510][ C0] r9:830c1000 r8:80287ff8 r7:df819de0 r6:830bf400 r5:83215400 r4:00000001 [ 528.353826][ C0] [<8027f4d0>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 528.354183][ C0] Exception stack(0xdf861fb0 to 0xdf861ff8) [ 528.354447][ C0] 1fa0: 00000000 00000000 00000000 00000000 [ 528.354816][ C0] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 528.355172][ C0] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 528.355473][ C0] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8027f4d0 [ 528.355778][ C0] r4:830c1040 [ 528.358681][ C0] Rebooting in 86400 seconds..