INFO: task kworker/0:102:21442 blocked for more than 430 seconds. Not tainted 6.7.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:102 state:D stack:0 pid:21442 tgid:21442 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81856248>] (__schedule) from [<81856e68>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81856248>] (__schedule) from [<81856e68>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:eab01da4 r5:843d3000 r4:843d3000 [<81856e3c>] (schedule) from [<81857410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:843d3000 r4:8270dad0 [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81859a10>] (__mutex_lock.constprop.0) from [<8185a5c4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:eab01e30 r8:00000000 r7:ffffffff r6:00000000 r5:875786c0 r4:00000000 [<8185a5b0>] (__mutex_lock_slowpath) from [<8185a604>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185a5c8>] (mutex_lock) from [<8048a094>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:875786c0 r4:00000000 [<8048dac4>] (vfree) from [<802ea144>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8917d400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f03f000 [<802ea114>] (module_memfree) from [<8038794c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfa0d000 [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<80387aa4>] (bpf_jit_free) from [<80387d10>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:8917d750 r4:877ee680 [<80387b88>] (bpf_prog_free_deferred) from [<80266974>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:843d3000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:8917d750 r4:877ee680 [<802667d8>] (process_one_work) from [<80266ebc>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<802667d8>] (process_one_work) from [<80266ebc>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:843d3000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:877ee6ac r4:877ee680 [<80266c7c>] (worker_thread) from [<8026e31c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:e06f5e90 r8:843272c0 r7:877ee680 r6:80266c7c r5:843d3000 r4:87d97400 [<8026e218>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeab01fb0 to 0xeab01ff8) 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 r5:8026e218 r4:87d97400 INFO: task kworker/0:103:21820 blocked for more than 430 seconds. Not tainted 6.7.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:103 state:D stack:0 pid:21820 tgid:21820 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81856248>] (__schedule) from [<81856e68>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81856248>] (__schedule) from [<81856e68>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:dfd99da4 r5:84752400 r4:84752400 [<81856e3c>] (schedule) from [<81857410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:84752400 r4:8270dad0 [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81859a10>] (__mutex_lock.constprop.0) from [<8185a5c4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:dfd99e30 r8:00000000 r7:ffffffff r6:00000000 r5:87da9780 r4:00000000 [<8185a5b0>] (__mutex_lock_slowpath) from [<8185a604>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185a5c8>] (mutex_lock) from [<8048a094>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:87da9780 r4:00000000 [<8048dac4>] (vfree) from [<802ea144>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:86d87c00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f02d000 [<802ea114>] (module_memfree) from [<8038794c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:df9dd000 [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<80387aa4>] (bpf_jit_free) from [<80387d10>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:86d87f50 r4:878ae000 [<80387b88>] (bpf_prog_free_deferred) from [<80266974>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:84752400 r8:00000000 r7:dddd12c0 r6:82c16000 r5:86d87f50 r4:878ae000 [<802667d8>] (process_one_work) from [<80266ebc>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<802667d8>] (process_one_work) from [<80266ebc>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:84752400 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:878ae02c r4:878ae000 [<80266c7c>] (worker_thread) from [<8026e31c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eab01e90 r8:87582ec0 r7:878ae000 r6:80266c7c r5:84752400 r4:875fc540 [<8026e218>] (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 r5:8026e218 r4:875fc540 INFO: task kworker/0:104:21833 blocked for more than 430 seconds. Not tainted 6.7.0-rc5-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:104 state:D stack:0 pid:21833 tgid:21833 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81856248>] (__schedule) from [<81856e68>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81856248>] (__schedule) from [<81856e68>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:eaae9da4 r5:84548000 r4:84548000 [<81856e3c>] (schedule) from [<81857410>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:84548000 r4:8270dad0 [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818573f8>] (schedule_preempt_disabled) from [<81859cf8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81859a10>] (__mutex_lock.constprop.0) from [<8185a5c4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:eaae9e30 r8:00000000 r7:ffffffff r6:00000000 r5:84588dc0 r4:00000000 [<8185a5b0>] (__mutex_lock_slowpath) from [<8185a604>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8185a5c8>] (mutex_lock) from [<8048a094>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048a034>] (_vm_unmap_aliases) from [<8048dc34>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84588dc0 r4:00000000 [<8048dac4>] (vfree) from [<802ea144>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:8917f000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f03d000 [<802ea114>] (module_memfree) from [<8038794c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfa0b000 [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<8038793c>] (bpf_jit_free_exec) from [<80387b0c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<80387aa4>] (bpf_jit_free) from [<80387d10>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:8917f350 r4:8db95780 [<80387b88>] (bpf_prog_free_deferred) from [<80266974>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:84548000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:8917f350 r4:8db95780 [<802667d8>] (process_one_work) from [<80266ebc>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<802667d8>] (process_one_work) from [<80266ebc>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:84548000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:8db957ac r4:8db95780 [<80266c7c>] (worker_thread) from [<8026e31c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfbbde90 r8:875827c0 r7:8db95780 r6:80266c7c r5:84548000 r4:87de4740 [<8026e218>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeaae9fb0 to 0xeaae9ff8) 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 r5:8026e218 r4:87de4740 NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.7.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81834c08>] (dump_backtrace) from [<81834d04>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fc0f2c [<81834cec>] (show_stack) from [<818524f0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81834cec>] (show_stack) from [<818524f0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<818524a8>] (dump_stack_lvl) from [<81852514>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<818524fc>] (dump_stack) from [<8182200c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81821eac>] (nmi_cpu_backtrace) from [<81822158>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81822028>] (nmi_trigger_cpumask_backtrace) from [<802104d4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827df39f r8:8289ceb4 r7:8260c5e4 r6:00007da1 r5:8261adc8 r4:87585a2c [<802104bc>] (arch_trigger_cpumask_backtrace) from [<803472b4>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<803472b4>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<803472b4>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<80346e28>] (watchdog) from [<8026e31c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e21340 r7:00000000 r6:80346e28 r5:82e70c00 r4:82ec6980 [<8026e218>] (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 r5:8026e218 r4:82ec6980 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2987 Comm: syz-fuzzer Not tainted 6.7.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x32478 LR is at 0x32444 pc : [<00032478>] lr : [<00032444>] psr: 20000010 sp : 0144df28 ip : 0000007e fp : 000fffff r10: 014024b0 r9 : 00000040 r8 : 00000010 r7 : 0000ffff r6 : 00000000 r5 : 065fc680 r4 : 00000040 r3 : 00000010 r2 : 0000ffff r1 : 00000040 r0 : 065fc680 Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment none Control: 30c5387d Table: 845891c0 DAC: 00000000 Backtrace: invalid frame pointer 0x000fffff