INFO: task kworker/0:8:12531 blocked for more than 430 seconds. Not tainted 6.8.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:8 state:D stack:0 pid:12531 tgid:12531 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185796c>] (__schedule) from [<818585a4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185796c>] (__schedule) from [<818585a4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:e0625dac r5:82ef0000 r4:82ef0000 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:82ef0000 r4:8270dd78 [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185b170>] (__mutex_lock.constprop.0) from [<8185bd24>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:e0625e38 r8:00000000 r7:ffffffff r6:00000000 r5:84e45200 r4:00000000 [<8185bd10>] (__mutex_lock_slowpath) from [<8185bd64>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185bd28>] (mutex_lock) from [<8048dfbc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84e45200 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:82ef0000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f033000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df9bd000 [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388cbc>] (bpf_jit_free) from [<80389e04>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:854a6f50 r4:854a6c00 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:854a6f50 r4:84548300 [<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 r9:82ef0000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:8454832c r4:84548300 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfe7de90 r8:84f237c0 r7:84548300 r6:80267330 r5:82ef0000 r4:84f23bc0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe0625fb0 to 0xe0625ff8) 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 r4:84f23bc0 INFO: task kworker/1:20:12825 blocked for more than 430 seconds. Not tainted 6.8.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:20 state:D stack:0 pid:12825 tgid:12825 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185796c>] (__schedule) from [<818585a4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185796c>] (__schedule) from [<818585a4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:dfe31dac r5:88930c00 r4:88930c00 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:88930c00 r4:8270dd78 [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185b170>] (__mutex_lock.constprop.0) from [<8185bd24>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:dfe31e38 r8:00000000 r7:ffffffff r6:00000000 r5:84fb71c0 r4:00000000 [<8185bd10>] (__mutex_lock_slowpath) from [<8185bd64>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185bd28>] (mutex_lock) from [<8048dfbc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84fb71c0 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:88930c00 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f244000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dff75000 [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388cbc>] (bpf_jit_free) from [<80389e04>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:860a3350 r4:860a3000 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:860a3350 r4:85172d80 [<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 r9:88930c00 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:85172dac r4:85172d80 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfcbde90 r8:851b95c0 r7:85172d80 r6:80267330 r5:88930c00 r4:851b97c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfe31fb0 to 0xdfe31ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026e748 r4:851b97c0 INFO: task kworker/1:23:13003 blocked for more than 430 seconds. Not tainted 6.8.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:23 state:D stack:0 pid:13003 tgid:13003 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8185796c>] (__schedule) from [<818585a4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8185796c>] (__schedule) from [<818585a4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:dfcd5dac r5:8541c800 r4:8541c800 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8541c800 r4:8270dd78 [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<81858b58>] (schedule_preempt_disabled) from [<8185b458>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185b170>] (__mutex_lock.constprop.0) from [<8185bd24>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:dfcd5e38 r8:00000000 r7:ffffffff r6:00000000 r5:8591d300 r4:00000000 [<8185bd10>] (__mutex_lock_slowpath) from [<8185bd64>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185bd28>] (mutex_lock) from [<8048dfbc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048df5c>] (_vm_unmap_aliases) from [<80491b5c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8591d300 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8541c800 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f240000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfed7000 [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388b54>] (bpf_jit_free_exec) from [<80388d24>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388cbc>] (bpf_jit_free) from [<80389e04>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:860a3b50 r4:860a3800 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:860a3b50 r4:853f0b80 [<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 r9:8541c800 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:853f0bac r4:853f0b80 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfe31e90 r8:8e27a700 r7:853f0b80 r6:80267330 r5:8541c800 r4:8515f980 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfcd5fb0 to 0xdfcd5ff8) 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 r4:8515f980 NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.8.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8183648c>] (dump_backtrace) from [<81836588>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fbd338 [<81836570>] (show_stack) from [<81853aa4>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81836570>] (show_stack) from [<81853aa4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81853a5c>] (dump_stack_lvl) from [<81853ac8>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<81853ab0>] (dump_stack) from [<818238b8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81823758>] (nmi_cpu_backtrace) from [<81823a04>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<818238d4>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827d8c5f r8:82895eb8 r7:8260c5ec r6:00007e9c r5:8261adc8 r4:9850e02c [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e6c>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e6c>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347e6c>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803479e0>] (watchdog) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e9f440 r7:00000000 r6:803479e0 r5:82ee1800 r4:82f45800 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 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 r4:82f45800 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8999 Comm: syz-executor.1 Not tainted 6.8.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x16900 LR is at 0x16900 pc : [<00016900>] lr : [<00016900>] psr: 20000010 sp : 20001910 ip : 20001910 fp : 76b810fc r10: 003d0f00 r9 : 7ef4c32f r8 : 7ef4c32e r7 : 00000000 r6 : 00000000 r5 : 00000000 r4 : 00000000 r3 : 00000000 r2 : 000001b0 r1 : 00000004 r0 : ffffffff Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user Control: 30c5387d Table: 84fa4c00 DAC: fffffffd Backtrace: invalid frame pointer 0x76b810fc