INFO: task kworker/1:4:31491 blocked for more than 430 seconds. Not tainted 6.8.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:31491 tgid:31491 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:df9b9dac r5:84f98000 r4:84f98000 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:84f98000 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:df9b9e38 r8:00000000 r7:ffffffff r6:00000000 r5:94b99dc0 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 r5:94b99dc0 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84f98000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f234000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfbe3000 [<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) r5:85965b50 r4:85965800 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:85965b50 r4:8503b700 [<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 r9:84f98000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:8503b72c r4:8503b700 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec7b5e90 r8:84ff7a80 r7:8503b700 r6:80267330 r5:84f98000 r4:85ec05c0 [<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 r4:85ec05c0 INFO: task kworker/1:29:31662 blocked for more than 430 seconds. Not tainted 6.8.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:29 state:D stack:0 pid:31662 tgid:31662 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:dfc65dac r5:84503c00 r4:84503c00 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:84503c00 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:dfc65e38 r8:00000000 r7:ffffffff r6:00000000 r5:a48aef00 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:a48aef00 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84503c00 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:dfd11000 [<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) r5:85964750 r4:85964400 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:85964750 r4:84e5bb80 [<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 r9:84503c00 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:84e5bbac r4:84e5bb80 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfb85e90 r8:8590af80 r7:84e5bb80 r6:80267330 r5:84503c00 r4:8590a780 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfc65fb0 to 0xdfc65ff8) 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 r4:8590a780 INFO: task kworker/1:31:31669 blocked for more than 430 seconds. Not tainted 6.8.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:31 state:D stack:0 pid:31669 tgid:31669 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:dfbb5dac r5:84278000 r4:84278000 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:84278000 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:dfbb5e38 r8:00000000 r7:ffffffff r6:00000000 r5:a48aef80 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:a48aef80 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84278000 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f246000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfd5f000 [<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) r5:85967350 r4:85967000 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:85967350 r4:84e5b580 [<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 r9:84278000 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:84e5b5ac r4:84e5b580 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfc21e90 r8:85110040 r7:84e5b580 r6:80267330 r5:84278000 r4:8591d700 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfbb5fb0 to 0xdfbb5ff8) 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 r4:8591d700 INFO: task kworker/0:45:32078 blocked for more than 430 seconds. Not tainted 6.8.0-rc4-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:45 state:D stack:0 pid:32078 tgid:32078 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:dfcb5dac r5:85aeb000 r4:85aeb000 [<81858578>] (schedule) from [<81858b70>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:85aeb000 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:dfcb5e38 r8:00000000 r7:ffffffff r6:00000000 r5:8ab3c040 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 r5:8ab3c040 r4:00000000 [<804919ec>] (vfree) from [<802ea424>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:85aeb000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f232000 [<802ea3f4>] (module_memfree) from [<80388b64>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:dfb3b000 [<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) r5:84e05350 r4:84e05000 [<80389cb8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84e05350 r4:8511fa80 [<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 r9:85aeb000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:8511faac r4:8511fa80 [<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:dfb81e90 r8:85ee5b80 r7:8511fa80 r6:80267330 r5:85aeb000 r4:8546d2c0 [<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfcb5fb0 to 0xdfcb5ff8) 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 r4:8546d2c0 NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.8.0-rc4-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 r6:00000013 r5:60000093 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) r5:00000000 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) r7:00000000 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 r6:00007da4 r5:8261adc8 r4:85af422c [<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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 14396 Comm: syz-executor.1 Not tainted 6.8.0-rc4-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x16900 LR is at 0x16900 pc : [<00016900>] lr : [<00016900>] psr: 20000010 sp : 200010d0 ip : 200010d0 fp : 76b880fc r10: 003d0f00 r9 : 7ed6d32f r8 : 7ed6d32e 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 none Control: 30c5387d Table: 84057880 DAC: 00000000 Backtrace: invalid frame pointer 0x76b880fc