INFO: task kworker/1:1:44 blocked for more than 430 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:44 tgid:44 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8189a2a0>] (__schedule) from [<8189aedc>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a2a0>] (__schedule) from [<8189aedc>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16205 r9:00000000 r8:82714be8 r7:00000002 r6:df915d94 r5:82ebbc00 r4:82ebbc00 [<8189aeb0>] (schedule) from [<8189b4ec>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:82ebbc00 r4:82714be4 [<8189b4d4>] (schedule_preempt_disabled) from [<8189ddcc>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b4d4>] (schedule_preempt_disabled) from [<8189ddcc>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189dae4>] (__mutex_lock.constprop.0) from [<8189e698>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df915e20 r8:00000001 r7:907f6000 r6:907f7000 r5:9063e640 r4:00000000 [<8189e684>] (__mutex_lock_slowpath) from [<8189e6d8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189e69c>] (mutex_lock) from [<8049c21c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c1bc>] (_vm_unmap_aliases) from [<804a00a0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c1bc>] (_vm_unmap_aliases) from [<804a00a0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16205 r9:00000001 r8:00000001 r7:907f6000 r6:907f7000 r5:9063e640 r4:00000000 [<8049ff30>] (vfree) from [<802ed8e4>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82ebbc00 r8:00000180 r7:00000000 r6:82c16200 r5:00001000 r4:7f04f000 [<802ed8b4>] (module_memfree) from [<803912e8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:e0991000 [<803912d8>] (bpf_jit_free_exec) from [<803914a8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<803912d8>] (bpf_jit_free_exec) from [<803914a8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391440>] (bpf_jit_free) from [<80392590>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:91c96f54 r4:91c96c00 [<80392444>] (bpf_prog_free_deferred) from [<802665bc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:ddde3f00 r6:82c16200 r5:91c96f54 r4:82fb1500 [<80266404>] (process_one_work) from [<802672e0>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266404>] (process_one_work) from [<802672e0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:82ebbc00 r9:82fb152c r8:61c88647 r7:ddde3f20 r6:82604d40 r5:ddde3f00 r4:82fb1500 [<802670f4>] (worker_thread) from [<8026fff4>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df879e90 r8:82fafac0 r7:82fb1500 r6:802670f4 r5:82ebbc00 r4:82faf9c0 [<8026fef0>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf915fb0 to 0xdf915ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fef0 r4:82faf9c0 INFO: task kworker/0:32:8073 blocked for more than 430 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:32 state:D stack:0 pid:8073 tgid:8073 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8189a2a0>] (__schedule) from [<8189aedc>] (__schedule_loop kernel/sched/core.c:6823 [inline]) [<8189a2a0>] (__schedule) from [<8189aedc>] (schedule+0x2c/0xfc kernel/sched/core.c:6838) r10:82c16005 r9:00000000 r8:82714be8 r7:00000002 r6:dff9dd94 r5:84458c00 r4:84458c00 [<8189aeb0>] (schedule) from [<8189b4ec>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6895) r5:84458c00 r4:82714be4 [<8189b4d4>] (schedule_preempt_disabled) from [<8189ddcc>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8189b4d4>] (schedule_preempt_disabled) from [<8189ddcc>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8189dae4>] (__mutex_lock.constprop.0) from [<8189e698>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:dff9de20 r8:00000001 r7:91c64000 r6:91c65000 r5:905e2f80 r4:00000000 [<8189e684>] (__mutex_lock_slowpath) from [<8189e6d8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8189e69c>] (mutex_lock) from [<8049c21c>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2788) [<8049c1bc>] (_vm_unmap_aliases) from [<804a00a0>] (vm_reset_perms mm/vmalloc.c:3235 [inline]) [<8049c1bc>] (_vm_unmap_aliases) from [<804a00a0>] (vfree+0x170/0x1e4 mm/vmalloc.c:3314) r10:82c16005 r9:00000001 r8:00000001 r7:91c64000 r6:91c65000 r5:905e2f80 r4:00000000 [<8049ff30>] (vfree) from [<802ed8e4>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84458c00 r8:00000080 r7:00000000 r6:82c16000 r5:00001000 r4:7f051000 [<802ed8b4>] (module_memfree) from [<803912e8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1058) r5:00001000 r4:e09c5000 [<803912d8>] (bpf_jit_free_exec) from [<803914a8>] (bpf_jit_binary_free kernel/bpf/core.c:1104 [inline]) [<803912d8>] (bpf_jit_free_exec) from [<803914a8>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1228) [<80391440>] (bpf_jit_free) from [<80392590>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2783) r5:915fcf54 r4:915fcc00 [<80392444>] (bpf_prog_free_deferred) from [<802665bc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r7:dddcff00 r6:82c16000 r5:915fcf54 r4:905b2600 [<80266404>] (process_one_work) from [<802672e0>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266404>] (process_one_work) from [<802672e0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:84458c00 r9:905b262c r8:61c88647 r7:dddcff20 r6:82604d40 r5:dddcff00 r4:905b2600 [<802670f4>] (worker_thread) from [<8026fff4>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eab85e90 r8:91a8cac0 r7:905b2600 r6:802670f4 r5:84458c00 r4:914cf480 [<8026fef0>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdff9dfb0 to 0xdff9dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fef0 r4:914cf480 NMI backtrace for cpu 0 CPU: 0 PID: 31 Comm: khungtaskd Not tainted 6.8.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81878b1c>] (dump_backtrace) from [<81878c18>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fc46f8 [<81878c00>] (show_stack) from [<818963d0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81878c00>] (show_stack) from [<818963d0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<81896360>] (dump_stack_lvl) from [<818963f4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:00000001 [<818963dc>] (dump_stack) from [<81865ef4>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81865d94>] (nmi_cpu_backtrace) from [<81866040>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c590 r5:8261a88c r4:ffffffff [<81865f10>] (nmi_trigger_cpumask_backtrace) from [<802105b4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c6f4 r8:0000e780 r7:8289dfe0 r6:00007e76 r5:8412b204 r4:916bc824 [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034e880>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034e880>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<8021059c>] (arch_trigger_cpumask_backtrace) from [<8034e880>] (watchdog+0x480/0x594 kernel/hung_task.c:380) [<8034e400>] (watchdog) from [<8026fff4>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82cc89c0 r7:00000000 r6:8034e400 r5:82e3d400 r4:82f9bc00 [<8026fef0>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8ddfb0 to 0xdf8ddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fef0 r4:82f9bc00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2811 Comm: klogd Not tainted 6.8.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x76d6b2d0 LR is at 0x76d825dc pc : [<76d6b2d0>] lr : [<76d825dc>] psr: 20000010 sp : 7ef38a70 ip : 00000038 fp : 7ef38c34 r10: 00000002 r9 : 7ef38abb r8 : 00000000 r7 : 00000000 r6 : 00000001 r5 : ffffffff r4 : 0173e15b r3 : 00000000 r2 : 00000001 r1 : 00000030 r0 : 0173e15a Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment none Control: 30c5387d Table: 84346440 DAC: 00000000 Backtrace: invalid frame pointer 0x7ef38c34