INFO: task kworker/1:5:30107 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/1:5 state:D stack:0 pid:30107 tgid:30107 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81858eac>] (__schedule) from [<81859ae4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<81858eac>] (__schedule) from [<81859ae4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:e0635dac r5:858ebc00 r4:858ebc00 [<81859ab8>] (schedule) from [<8185a0b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:858ebc00 r4:8270dd78 [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185c6b0>] (__mutex_lock.constprop.0) from [<8185d264>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:e0635e38 r8:00000000 r7:ffffffff r6:00000000 r5:85442ac0 r4:00000000 [<8185d250>] (__mutex_lock_slowpath) from [<8185d2a4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185d268>] (mutex_lock) from [<8048e0e4>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85442ac0 r4:00000000 [<80491b14>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:858ebc00 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f24a000 [<802ea43c>] (module_memfree) from [<80388bc4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df9d7000 [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d1c>] (bpf_jit_free) from [<80389e64>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:850c2750 r4:850c2400 [<80389d18>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:850c2750 r4:84d86280 [<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 r9:858ebc00 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:84d862ac r4:84d86280 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfa05e90 r8:857f49c0 r7:84d86280 r6:80267330 r5:858ebc00 r4:857f4840 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xe0635fb0 to 0xe0635ff8) 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 r4:857f4840 INFO: task kworker/0:26:2234 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/0:26 state:D stack:0 pid:2234 tgid:2234 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81858eac>] (__schedule) from [<81859ae4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<81858eac>] (__schedule) from [<81859ae4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:dfd99dac r5:836cbc00 r4:836cbc00 [<81859ab8>] (schedule) from [<8185a0b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:836cbc00 r4:8270dd78 [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185c6b0>] (__mutex_lock.constprop.0) from [<8185d264>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:dfd99e38 r8:00000000 r7:ffffffff r6:00000000 r5:85442dc0 r4:00000000 [<8185d250>] (__mutex_lock_slowpath) from [<8185d2a4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185d268>] (mutex_lock) from [<8048e0e4>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85442dc0 r4:00000000 [<80491b14>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:836cbc00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f02f000 [<802ea43c>] (module_memfree) from [<80388bc4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df9a9000 [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d1c>] (bpf_jit_free) from [<80389e64>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:850c1f50 r4:850c1c00 [<80389d18>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:850c1f50 r4:85423180 [<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 r9:836cbc00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:854231ac r4:85423180 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfcc5e90 r8:85442b00 r7:85423180 r6:80267330 r5:836cbc00 r4:85442e00 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfd99fb0 to 0xdfd99ff8) 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 r4:85442e00 INFO: task kworker/0:27:2241 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/0:27 state:D stack:0 pid:2241 tgid:2241 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81858eac>] (__schedule) from [<81859ae4>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<81858eac>] (__schedule) from [<81859ae4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:df9b9dac r5:858ec800 r4:858ec800 [<81859ab8>] (schedule) from [<8185a0b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:858ec800 r4:8270dd78 [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8185a098>] (schedule_preempt_disabled) from [<8185c998>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8185c6b0>] (__mutex_lock.constprop.0) from [<8185d264>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df9b9e38 r8:00000000 r7:ffffffff r6:00000000 r5:85442200 r4:00000000 [<8185d250>] (__mutex_lock_slowpath) from [<8185d2a4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185d268>] (mutex_lock) from [<8048e0e4>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048e084>] (_vm_unmap_aliases) from [<80491c84>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85442200 r4:00000000 [<80491b14>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:858ec800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f248000 [<802ea43c>] (module_memfree) from [<80388bc4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df9bd000 [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<80388bb4>] (bpf_jit_free_exec) from [<80388d84>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388d1c>] (bpf_jit_free) from [<80389e64>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:850c2350 r4:850c2000 [<80389d18>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:850c2350 r4:85423d80 [<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 r9:858ec800 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:85423dac r4:85423d80 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfcc5e90 r8:84fe76c0 r7:85423d80 r6:80267330 r5:858ec800 r4:854429c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9b9fb0 to 0xdf9b9ff8) 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 r4:854429c0 NMI backtrace for cpu 1 CPU: 1 PID: 31 Comm: khungtaskd Not tainted 6.8.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<818379cc>] (dump_backtrace) from [<81837ac8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fbd490 [<81837ab0>] (show_stack) from [<81854fe4>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81837ab0>] (show_stack) from [<81854fe4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81854f9c>] (dump_stack_lvl) from [<81855008>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<81854ff0>] (dump_stack) from [<81824df8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81824c98>] (nmi_cpu_backtrace) from [<81824f44>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81824e14>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827d8c5f r8:82895eb8 r7:8260c5ec r6:00007d3f r5:8261adc8 r4:860c9a2c [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347eb4>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<80347a28>] (watchdog) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82fa2b00 r7:00000000 r6:80347a28 r5:82ea4800 r4:82fa2a00 [<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 r4:82fa2a00 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 31292 Comm: syz-executor.0 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 : 20000200 ip : 20000200 fp : 76bb90fc r10: 003d0f00 r9 : 7ec1a32f r8 : 7ec1a32e 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: 84e7a900 DAC: fffffffd Backtrace: invalid frame pointer 0x76bb90fc