INFO: task kworker/0:6:4946 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:6 state:D stack:0 pid:4946 tgid:4946 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818556e8>] (__schedule) from [<81856308>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<818556e8>] (__schedule) from [<81856308>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:dfbc1da4 r5:84cd0000 r4:84cd0000 [<818562dc>] (schedule) from [<818568b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:84cd0000 r4:8270dad0 [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858eb0>] (__mutex_lock.constprop.0) from [<81859a64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfbc1e30 r8:00000000 r7:ffffffff r6:00000000 r5:850dbb00 r4:00000000 [<81859a50>] (__mutex_lock_slowpath) from [<81859aa4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859a68>] (mutex_lock) from [<804898bc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:850dbb00 r4:00000000 [<8048d2ec>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:85b2fc00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f22c000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:df96b000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:85b2ff50 r4:84d96a80 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:84cd0000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:85b2ff50 r4:84d96a80 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:84cd0000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:84d96aac r4:84d96a80 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfae1e90 r8:85882d40 r7:84d96a80 r6:80266bfc r5:84cd0000 r4:85882b40 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfbc1fb0 to 0xdfbc1ff8) 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 r5:8026e198 r4:85882b40 INFO: task kworker/0:38:6002 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:38 state:D stack:0 pid:6002 tgid:6002 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818556e8>] (__schedule) from [<81856308>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<818556e8>] (__schedule) from [<81856308>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:dfc35da4 r5:836c6000 r4:836c6000 [<818562dc>] (schedule) from [<818568b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:836c6000 r4:8270dad0 [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858eb0>] (__mutex_lock.constprop.0) from [<81859a64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfc35e30 r8:00000000 r7:ffffffff r6:00000000 r5:85885540 r4:00000000 [<81859a50>] (__mutex_lock_slowpath) from [<81859aa4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859a68>] (mutex_lock) from [<804898bc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85885540 r4:00000000 [<8048d2ec>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:858a5c00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f234000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfd3b000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:858a5f50 r4:84d83000 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:836c6000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:858a5f50 r4:84d83000 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:836c6000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:84d8302c r4:84d83000 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfabde90 r8:84e9b9c0 r7:84d83000 r6:80266bfc r5:836c6000 r4:84e9bb80 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfc35fb0 to 0xdfc35ff8) 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 r5:8026e198 r4:84e9bb80 INFO: task kworker/1:24:6062 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:24 state:D stack:0 pid:6062 tgid:6062 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818556e8>] (__schedule) from [<81856308>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<818556e8>] (__schedule) from [<81856308>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16205 r9:00000000 r8:8270dad4 r7:00000002 r6:dfbf1da4 r5:82ded400 r4:82ded400 [<818562dc>] (schedule) from [<818568b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:82ded400 r4:8270dad0 [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858eb0>] (__mutex_lock.constprop.0) from [<81859a64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:dfbf1e30 r8:00000000 r7:ffffffff r6:00000000 r5:85a82cc0 r4:00000000 [<81859a50>] (__mutex_lock_slowpath) from [<81859aa4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859a68>] (mutex_lock) from [<804898bc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85a82cc0 r4:00000000 [<8048d2ec>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:86af8400 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f236000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:e041f000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:86af8750 r4:85b29500 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:82ded400 r8:00000080 r7:ddde42c0 r6:82c16200 r5:86af8750 r4:85b29500 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:82ded400 r8:ddde42e0 r7:82604d40 r6:ddde42c0 r5:85b2952c r4:85b29500 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e04f9e90 r8:84017f80 r7:85b29500 r6:80266bfc r5:82ded400 r4:85969780 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfbf1fb0 to 0xdfbf1ff8) 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 r5:8026e198 r4:85969780 INFO: task kworker/0:39:6064 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:39 state:D stack:0 pid:6064 tgid:6064 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<818556e8>] (__schedule) from [<81856308>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<818556e8>] (__schedule) from [<81856308>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:dfb21da4 r5:86433c00 r4:86433c00 [<818562dc>] (schedule) from [<818568b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:86433c00 r4:8270dad0 [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81856898>] (schedule_preempt_disabled) from [<81859198>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858eb0>] (__mutex_lock.constprop.0) from [<81859a64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfb21e30 r8:00000000 r7:ffffffff r6:00000000 r5:84b47a80 r4:00000000 [<81859a50>] (__mutex_lock_slowpath) from [<81859aa4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859a68>] (mutex_lock) from [<804898bc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048985c>] (_vm_unmap_aliases) from [<8048d45c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84b47a80 r4:00000000 [<8048d2ec>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:85b2ec00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f232000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfc5d000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:85b2ef50 r4:84d83100 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:86433c00 r8:00000000 r7:dddd12c0 r6:82c16000 r5:85b2ef50 r4:84d83100 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:86433c00 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:84d8312c r4:84d83100 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfad1e90 r8:84017500 r7:84d83100 r6:80266bfc r5:86433c00 r4:84017380 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfb21fb0 to 0xdfb21ff8) 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 r5:8026e198 r4:84017380 NMI backtrace for cpu 1 CPU: 1 PID: 30 Comm: khungtaskd Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8183430c>] (dump_backtrace) from [<81834408>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000013 r5:60000093 r4:81fc0f0c [<818343f0>] (show_stack) from [<8185198c>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818343f0>] (show_stack) from [<8185198c>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81851944>] (dump_stack_lvl) from [<818519b0>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<81851998>] (dump_stack) from [<818216c0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81821560>] (nmi_cpu_backtrace) from [<8182180c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<818216dc>] (nmi_trigger_cpumask_backtrace) from [<802104d4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00000001 r8:8289ceb4 r7:8260c5e4 r6:00007ea0 r5:8261adc8 r4:8642a92c [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803466c4>] (watchdog) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e21340 r7:00000000 r6:803466c4 r5:82e70c00 r4:82ec6940 [<8026e198>] (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 r5:8026e198 r4:82ec6940 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 28508 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x168e8 LR is at 0x168e8 pc : [<000168e8>] lr : [<000168e8>] psr: 20000010 sp : 20000570 ip : 20000570 fp : 76bd30fc r10: 003d0f00 r9 : 7ef3a32f r8 : 7ef3a32e r7 : 00000000 r6 : 000000e6 r5 : ea8b8b39 r4 : 00000000 r3 : 00000000 r2 : 000001b0 r1 : 0000000e r0 : ffffffff Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment user Control: 30c5387d Table: 85090bc0 DAC: fffffffd Backtrace: invalid frame pointer 0x76bd30fc