INFO: task kworker/1:1:51 blocked for more than 433 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:51 tgid:51 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<819bb314>] (__schedule) from [<819bbf54>] (__schedule_loop kernel/sched/core.c:6759 [inline]) [<819bb314>] (__schedule) from [<819bbf54>] (schedule+0x2c/0xfc kernel/sched/core.c:6774) r10:8260ca7c r9:00000000 r8:827174e4 r7:00000002 r6:df931da4 r5:82ee3000 r4:82ee3000 [<819bbf28>] (schedule) from [<819bc308>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6831) r5:82ee3000 r4:827174e0 [<819bc2f0>] (schedule_preempt_disabled) from [<819bede0>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<819bc2f0>] (schedule_preempt_disabled) from [<819bede0>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<819beaf8>] (__mutex_lock.constprop.0) from [<819bf6ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:8260ca7c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df931e20 r4:00000000 [<819bf698>] (__mutex_lock_slowpath) from [<819bf6ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<819bf6b0>] (mutex_lock) from [<804adbb8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2844) [<804adb50>] (_vm_unmap_aliases) from [<804b1914>] (vm_reset_perms mm/vmalloc.c:3272 [inline]) [<804adb50>] (_vm_unmap_aliases) from [<804b1914>] (vfree+0x170/0x1e4 mm/vmalloc.c:3351) r10:82c18205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848ed0c0 r4:00000000 [<804b17a4>] (vfree) from [<8050fb60>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82ee3000 r8:01800000 r7:00000000 r6:82c18200 r5:00001000 r4:7f02b000 [<8050fb30>] (execmem_free) from [<8039c42c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1072) r5:00001000 r4:eca18000 [<8039c41c>] (bpf_jit_free_exec) from [<8039c80c>] (bpf_jit_binary_free kernel/bpf/core.c:1118 [inline]) [<8039c41c>] (bpf_jit_free_exec) from [<8039c80c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1241) [<8039c7a4>] (bpf_jit_free) from [<8039d960>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2815) r5:847ee754 r4:847ee400 [<8039d814>] (bpf_prog_free_deferred) from [<80266034>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229) r7:ddde40c0 r6:82c18200 r5:847ee754 r4:82ec6880 [<80265e80>] (process_one_work) from [<80266c18>] (process_scheduled_works kernel/workqueue.c:3310 [inline]) [<80265e80>] (process_one_work) from [<80266c18>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391) r10:82ee3000 r9:82ec68ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82ec6880 [<80266a2c>] (worker_thread) from [<8026fc84>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df87de78 r8:82ecc680 r7:82ec6880 r6:80266a2c r5:82ee3000 r4:82ecc580 [<8026fb80>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf931fb0 to 0xdf931ff8) 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 r5:8026fb80 r4:82ecc580 INFO: task kworker/1:0:11451 blocked for more than 433 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:11451 tgid:11451 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<819bb314>] (__schedule) from [<819bbf54>] (__schedule_loop kernel/sched/core.c:6759 [inline]) [<819bb314>] (__schedule) from [<819bbf54>] (schedule+0x2c/0xfc kernel/sched/core.c:6774) r10:8260ca7c r9:00000000 r8:827174e4 r7:00000002 r6:ec2e5da4 r5:8465bc00 r4:8465bc00 [<819bbf28>] (schedule) from [<819bc308>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6831) r5:8465bc00 r4:827174e0 [<819bc2f0>] (schedule_preempt_disabled) from [<819bede0>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<819bc2f0>] (schedule_preempt_disabled) from [<819bede0>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<819beaf8>] (__mutex_lock.constprop.0) from [<819bf6ac>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:8260ca7c r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:ec2e5e20 r4:00000000 [<819bf698>] (__mutex_lock_slowpath) from [<819bf6ec>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<819bf6b0>] (mutex_lock) from [<804adbb8>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2844) [<804adb50>] (_vm_unmap_aliases) from [<804b1914>] (vm_reset_perms mm/vmalloc.c:3272 [inline]) [<804adb50>] (_vm_unmap_aliases) from [<804b1914>] (vfree+0x170/0x1e4 mm/vmalloc.c:3351) r10:82c18205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84bc5780 r4:00000000 [<804b17a4>] (vfree) from [<8050fb60>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:8465bc00 r8:01800000 r7:00000000 r6:82c18200 r5:00001000 r4:7f02f000 [<8050fb30>] (execmem_free) from [<8039c42c>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1072) r5:00001000 r4:eca45000 [<8039c41c>] (bpf_jit_free_exec) from [<8039c80c>] (bpf_jit_binary_free kernel/bpf/core.c:1118 [inline]) [<8039c41c>] (bpf_jit_free_exec) from [<8039c80c>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1241) [<8039c7a4>] (bpf_jit_free) from [<8039d960>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2815) r5:851cc354 r4:851cc000 [<8039d814>] (bpf_prog_free_deferred) from [<80266034>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229) r7:ddde40c0 r6:82c18200 r5:851cc354 r4:849efd00 [<80265e80>] (process_one_work) from [<80266c18>] (process_scheduled_works kernel/workqueue.c:3310 [inline]) [<80265e80>] (process_one_work) from [<80266c18>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391) r10:8465bc00 r9:849efd2c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:849efd00 [<80266a2c>] (worker_thread) from [<8026fc84>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:ed1b9e78 r8:85554240 r7:849efd00 r6:80266a2c r5:8465bc00 r4:85554580 [<8026fb80>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xec2e5fb0 to 0xec2e5ff8) 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 r5:8026fb80 r4:85554580 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<81998e58>] (dump_backtrace) from [<81998f54>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000013 r5:60000093 r4:8203d294 [<81998f3c>] (show_stack) from [<819b7400>] (__dump_stack lib/dump_stack.c:94 [inline]) [<81998f3c>] (show_stack) from [<819b7400>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<819b7390>] (dump_stack_lvl) from [<819b7424>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<819b740c>] (dump_stack) from [<81986118>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81985fb8>] (nmi_cpu_backtrace) from [<81986264>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c5d0 r5:8261a88c r4:ffffffff [<81986134>] (nmi_trigger_cpumask_backtrace) from [<802103e8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:0002bb1a r8:828b6cf8 r7:8260c730 r6:00007f31 r5:8261ae48 r4:8496a01c [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358140>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]) [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358140>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358140>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379) [<80357ca8>] (watchdog) from [<8026fc84>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819e58 r8:82e9f440 r7:00000000 r6:80357ca8 r5:82ee1800 r4:82f45980 [<8026fb80>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8e1fb0 to 0xdf8e1ff8) 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 r5:8026fb80 r4:82f45980 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 3106 Comm: sshd Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: ARM-Versatile Express PC is at __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] PC is at _raw_spin_unlock_irqrestore+0x28/0x54 kernel/locking/spinlock.c:194 LR is at swake_up_one+0x68/0x6c kernel/sched/swait.c:53 pc : [<819c4768>] lr : [<802a6c40>] psr: 20000013 sp : df999cf0 ip : df999d00 fp : df999cfc r10: 836ee5a8 r9 : 00000001 r8 : 82035c14 r7 : 836ee000 r6 : 60000013 r5 : 826f2710 r4 : df861e94 r3 : 000011bd r2 : 826f2714 r1 : 60000013 r0 : 826f2710 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 845ccb40 DAC: 00000000 Call trace: [<819c4740>] (_raw_spin_unlock_irqrestore) from [<802a6c40>] (swake_up_one+0x68/0x6c kernel/sched/swait.c:53) [<802a6bd8>] (swake_up_one) from [<802db1c8>] (swake_up_one_online+0x64/0x110 kernel/rcu/tree.c:1092) r7:836ee000 r6:826f2710 r5:8260c5d0 r4:00000001 [<802db164>] (swake_up_one_online) from [<802db350>] (__rcu_report_exp_rnp+0xdc/0xe4 kernel/rcu/tree_exp.h:203) r7:827fa8bc r6:00000001 r5:20000013 r4:826f24c0 [<802db274>] (__rcu_report_exp_rnp) from [<802de59c>] (rcu_report_exp_rnp kernel/rcu/tree_exp.h:225 [inline]) [<802db274>] (__rcu_report_exp_rnp) from [<802de59c>] (rcu_preempt_deferred_qs_irqrestore+0x220/0x344 kernel/rcu/tree_plugin.h:578) r9:00000001 r8:00000000 r7:40000013 r6:836ee5a8 r5:836ee000 r4:826f24c0 [<802de37c>] (rcu_preempt_deferred_qs_irqrestore) from [<802de704>] (rcu_read_unlock_special+0x44/0x1a0 kernel/rcu/tree_plugin.h:692) r10:df999fb0 r9:def84240 r8:00000000 r7:40000013 r6:844241e0 r5:836ee000 r4:836ee000 r3:00000000 [<802de6c0>] (rcu_read_unlock_special) from [<802de894>] (__rcu_read_unlock+0x34/0x38 kernel/rcu/tree_plugin.h:437) r9:def84240 r8:844241e0 r7:def84240 r6:844241e0 r5:def84240 r4:df999eb8 [<802de860>] (__rcu_read_unlock) from [<8048dcec>] (rcu_read_unlock include/linux/rcupdate.h:882 [inline]) [<802de860>] (__rcu_read_unlock) from [<8048dcec>] (wp_page_reuse+0xe4/0x1a0 mm/memory.c:3262) [<8048dc08>] (wp_page_reuse) from [<80490e48>] (do_wp_page+0x170/0x1164 mm/memory.c:3731) r6:836ee000 r5:00000000 r4:df999eb8 [<80490cd8>] (do_wp_page) from [<80494664>] (handle_pte_fault mm/memory.c:5767 [inline]) [<80490cd8>] (do_wp_page) from [<80494664>] (__handle_mm_fault mm/memory.c:5894 [inline]) [<80490cd8>] (do_wp_page) from [<80494664>] (handle_mm_fault+0x9a8/0x1348 mm/memory.c:6062) r10:df999fb0 r9:843bf000 r8:845ccb48 r7:00000040 r6:769c6000 r5:836ee000 r4:00001255 [<80493cbc>] (handle_mm_fault) from [<80214290>] (do_page_fault+0x1c8/0x3d8 arch/arm/mm/fault.c:328) r10:00000002 r9:843bf000 r8:00000255 r7:836ee000 r6:00000a0f r5:769c6000 r4:df999fb0 [<802140c8>] (do_page_fault) from [<80214688>] (do_DataAbort+0x38/0xa8 arch/arm/mm/fault.c:596) r10:7ec371a4 r9:004e0565 r8:802140c8 r7:df999fb0 r6:769c6000 r5:00000a0f r4:8261cbbc [<80214650>] (do_DataAbort) from [<80200ebc>] (__dabt_usr+0x5c/0x60 arch/arm/kernel/entry-armv.S:433) Exception stack(0xdf999fb0 to 0xdf999ff8) 9fa0: 7698f008 00000000 00009000 769c6000 9fc0: 01c7a770 00000000 00000000 00000000 76f27d08 004e0565 7ec371a4 0000006b 9fe0: 00000000 7ec36ee8 76b397e4 76adb318 20000010 ffffffff r8:824b1044 r7:836ee000 r6:ffffffff r5:20000010 r4:76adb318