INFO: task kworker/1:5:8487 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:0 pid:8487 tgid:8487 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:ead9ddac r5:83e2b000 r4:83e2b000 [<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:83e2b000 r4:8270dd78 [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:ead9de38 r8:00000000 r7:ffffffff r6:00000000 r5:84fc45c0 r4:00000000 [<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185db68>] (mutex_lock) from [<8048e140>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84fc45c0 r4:00000000 [<80491b70>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83e2b000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f039000 [<802ea43c>] (module_memfree) from [<80388bcc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:eb5d5000 [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d24>] (bpf_jit_free) from [<80389e6c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:852ce750 r4:852ce400 [<80389d20>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:852ce750 r4:84f72700 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:83e2b000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:84f7272c r4:84f72700 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ee761e90 r8:84f0ac00 r7:84f72700 r6:80267330 r5:83e2b000 r4:84f0a9c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xead9dfb0 to 0xead9dff8) 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 r5:8026e748 r4:84f0a9c0 INFO: task kworker/1:6:8492 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:6 state:D stack:0 pid:8492 tgid:8492 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:eaf35dac r5:83f93000 r4:83f93000 [<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:83f93000 r4:8270dd78 [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:eaf35e38 r8:00000000 r7:ffffffff r6:00000000 r5:84fae540 r4:00000000 [<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185db68>] (mutex_lock) from [<8048e140>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84fae540 r4:00000000 [<80491b70>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:83f93000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f037000 [<802ea43c>] (module_memfree) from [<80388bcc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:eb5cf000 [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d24>] (bpf_jit_free) from [<80389e6c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:85eb5350 r4:85eb5000 [<80389d20>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:85eb5350 r4:84f72780 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:83f93000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:84f727ac r4:84f72780 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ee761e90 r8:84fb60c0 r7:84f72780 r6:80267330 r5:83f93000 r4:84fb68c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeaf35fb0 to 0xeaf35ff8) 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 r5:8026e748 r4:84fb68c0 INFO: task kworker/0:4:9401 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:9401 tgid:9401 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:eb329dac r5:8410ec00 r4:8410ec00 [<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8410ec00 r4:8270dd78 [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:eb329e38 r8:00000000 r7:ffffffff r6:00000000 r5:84ff3b80 r4:00000000 [<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185db68>] (mutex_lock) from [<8048e140>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84ff3b80 r4:00000000 [<80491b70>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8410ec00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f03b000 [<802ea43c>] (module_memfree) from [<80388bcc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:eb62b000 [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d24>] (bpf_jit_free) from [<80389e6c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:852cef50 r4:852cec00 [<80389d20>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:852cef50 r4:8401e100 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:8410ec00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:8401e12c r4:8401e100 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eb231e90 r8:85f584c0 r7:8401e100 r6:80267330 r5:8410ec00 r4:850050c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeb329fb0 to 0xeb329ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026e748 r4:850050c0 INFO: task kworker/0:7:9423 blocked for more than 430 seconds. Not tainted 6.8.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:7 state:D stack:0 pid:9423 tgid:9423 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:eb4fddac r5:838a5400 r4:838a5400 [<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:838a5400 r4:8270dd78 [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:eb4fde38 r8:00000000 r7:ffffffff r6:00000000 r5:82fbd340 r4:00000000 [<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185db68>] (mutex_lock) from [<8048e140>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e0e0>] (_vm_unmap_aliases) from [<80491ce0>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:82fbd340 r4:00000000 [<80491b70>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:838a5400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f03d000 [<802ea43c>] (module_memfree) from [<80388bcc>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:eb631000 [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bbc>] (bpf_jit_free_exec) from [<80388d8c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d24>] (bpf_jit_free) from [<80389e6c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:8603eb50 r4:8603e800 [<80389d20>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:8603eb50 r4:82eba300 [<80266e8c>] (process_one_work) from [<80267570>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e8c>] (process_one_work) from [<80267570>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:838a5400 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:82eba32c r4:82eba300 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eb329e90 r8:84fee6c0 r7:82eba300 r6:80267330 r5:838a5400 r4:860727c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeb4fdfb0 to 0xeb4fdff8) 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 r5:8026e748 r4:860727c0 NMI backtrace for cpu 1 CPU: 1 PID: 31 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<818382cc>] (dump_backtrace) from [<818383c8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000013 r5:60000093 r4:81fbd658 [<818383b0>] (show_stack) from [<818558e4>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818383b0>] (show_stack) from [<818558e4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8185589c>] (dump_stack_lvl) from [<81855908>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<818558f0>] (dump_stack) from [<818256f8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81825598>] (nmi_cpu_backtrace) from [<81825844>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81825714>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00000001 r8:82895eb8 r7:8260c5ec r6:00007f03 r5:8261adc8 r4:82e0172c [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<80347a30>] (watchdog) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82cce8c0 r7:00000000 r6:80347a30 r5:82e58000 r4:82fa36c0 [<8026e748>] (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 r5:8026e748 r4:82fa36c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6641 Comm: syz-executor.1 Not tainted 6.8.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x16910 LR is at 0x16910 pc : [<00016910>] lr : [<00016910>] psr: 20000010 sp : 20001540 ip : 20001540 fp : 76b5f0fc r10: 003d0f00 r9 : 7ec0932f r8 : 7ec0932e r7 : 00000000 r6 : 00005d6f r5 : 160261d5 r4 : 00000000 r3 : 00000000 r2 : 000001b0 r1 : 00000026 r0 : ffffffff Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user Control: 30c5387d Table: 857eeb00 DAC: fffffffd Backtrace: invalid frame pointer 0x76b5f0fc