INFO: task kworker/0:34:8285 blocked for more than 430 seconds.
      Not tainted 6.8.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:34    state:D stack:0     pid:8285  tgid:8285  ppid:2      flags:0x00400000
Workqueue: events bpf_prog_free_deferred
Backtrace: 
[<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline])
[<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817)
 r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:dfc71dac r5:84a8e000
 r4:84a8e000
[<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874)
 r5:84a8e000 r4:8270dd78
[<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline])
[<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752)
[<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040)
 r10:82c16005 r9:dfc71e38 r8:00000000 r7:ffffffff r6:00000000 r5:851244c0
 r4:00000000
[<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286)
[<8185db68>] (mutex_lock) from [<8048e118>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267)
[<8048e0b8>] (_vm_unmap_aliases) from [<80491cb8>] (vm_reset_perms mm/vmalloc.c:2753 [inline])
[<8048e0b8>] (_vm_unmap_aliases) from [<80491cb8>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832)
 r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:851244c0
 r4:00000000
[<80491b48>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189)
 r9:84a8e000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f02d000
[<802ea43c>] (module_memfree) from [<80388ba4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048)
 r5:00001000 r4:dfc81000
[<80388b94>] (bpf_jit_free_exec) from [<80388d64>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline])
[<80388b94>] (bpf_jit_free_exec) from [<80388d64>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218)
[<80388cfc>] (bpf_jit_free) from [<80389e44>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772)
 r5:851c7350 r4:851c7000
[<80389cf8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633)
 r7:dddd1280 r6:82c16000 r5:851c7350 r4:84fe7000
[<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 r9:84a8e000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84fe702c
 r4:84fe7000
[<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:e007de90 r8:84fffa80 r7:84fe7000 r6:80267330 r5:84a8e000
 r4:85246ac0
[<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfc71fb0 to 0xdfc71ff8)
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 r5:8026e748 r4:85246ac0
INFO: task kworker/1:39:8553 blocked for more than 430 seconds.
      Not tainted 6.8.0-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:39    state:D stack:0     pid:8553  tgid:8553  ppid:2      flags:0x00400000
Workqueue: events bpf_prog_free_deferred
Backtrace: 
[<818597ac>] (__schedule) from [<8185a3e4>] (__schedule_loop kernel/sched/core.c:6802 [inline])
[<818597ac>] (__schedule) from [<8185a3e4>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817)
 r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:dfc11dac r5:841fbc00
 r4:841fbc00
[<8185a3b8>] (schedule) from [<8185a9b0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874)
 r5:841fbc00 r4:8270dd78
[<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline])
[<8185a998>] (schedule_preempt_disabled) from [<8185d298>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752)
[<8185cfb0>] (__mutex_lock.constprop.0) from [<8185db64>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040)
 r10:82c16205 r9:dfc11e38 r8:00000000 r7:ffffffff r6:00000000 r5:85187e80
 r4:00000000
[<8185db50>] (__mutex_lock_slowpath) from [<8185dba4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286)
[<8185db68>] (mutex_lock) from [<8048e118>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267)
[<8048e0b8>] (_vm_unmap_aliases) from [<80491cb8>] (vm_reset_perms mm/vmalloc.c:2753 [inline])
[<8048e0b8>] (_vm_unmap_aliases) from [<80491cb8>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832)
 r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85187e80
 r4:00000000
[<80491b48>] (vfree) from [<802ea46c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189)
 r9:841fbc00 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f02f000
[<802ea43c>] (module_memfree) from [<80388ba4>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048)
 r5:00001000 r4:dfdbb000
[<80388b94>] (bpf_jit_free_exec) from [<80388d64>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline])
[<80388b94>] (bpf_jit_free_exec) from [<80388d64>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218)
[<80388cfc>] (bpf_jit_free) from [<80389e44>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772)
 r5:851c7f50 r4:851c7c00
[<80389cf8>] (bpf_prog_free_deferred) from [<80267028>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633)
 r7:ddde4280 r6:82c16200 r5:851c7f50 r4:85128d00
[<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 r9:841fbc00 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:85128d2c
 r4:85128d00
[<80267330>] (worker_thread) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:dfd09e90 r8:82cc7f40 r7:85128d00 r6:80267330 r5:841fbc00
 r4:85169440
[<8026e748>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134)
Exception stack(0xdfc11fb0 to 0xdfc11ff8)
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 r5:8026e748 r4:85169440
NMI backtrace for cpu 0
CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.8.0-syzkaller #0
Hardware name: ARM-Versatile Express
Backtrace: 
[<818382cc>] (dump_backtrace) from [<818383c8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256)
 r7:00000000 r6:00000013 r5:60000093 r4:81fbd67c
[<818383b0>] (show_stack) from [<818558e4>] (__dump_stack lib/dump_stack.c:88 [inline])
[<818383b0>] (show_stack) from [<818558e4>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106)
[<8185589c>] (dump_stack_lvl) from [<81855908>] (dump_stack+0x18/0x1c lib/dump_stack.c:113)
 r5:00000000 r4:00000001
[<818558f0>] (dump_stack) from [<818256f8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113)
[<81825598>] (nmi_cpu_backtrace) from [<81825844>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62)
 r7:00000000 r6:8260c494 r5:8261a7d8 r4:ffffffff
[<81825714>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851)
 r9:00000001 r8:82895eb8 r7:8260c5ec r6:00007ef3 r5:8261adc8 r4:83452f2c
[<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline])
[<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline])
[<8021055c>] (arch_trigger_cpumask_backtrace) from [<80347ebc>] (watchdog+0x48c/0x59c kernel/hung_task.c:379)
[<80347a30>] (watchdog) from [<8026e84c>] (kthread+0x104/0x134 kernel/kthread.c:388)
 r10:00000000 r9:df819e58 r8:82e9f440 r7:00000000 r6:80347a30 r5:82ee1800
 r4:82f459c0
[<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 r4:82f459c0
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2980 Comm: syz-fuzzer Not tainted 6.8.0-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 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
LR is at unlock_task_sighand include/linux/sched/signal.h:756 [inline]
LR is at do_send_sig_info+0x70/0xa0 kernel/signal.c:1301
pc : [<818629ac>]    lr : [<80257f80>]    psr: 60000013
sp : ec43de00  ip : ec43de10  fp : ec43de0c
r10: 00400000  r9 : 00000001  r8 : 00000001
r7 : 0000001c  r6 : a0000013  r5 : 83d95500  r4 : 00000000
r3 : 000095e7  r2 : 83451210  r1 : a0000013  r0 : 83d95500
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
Control: 30c5387d  Table: 84019280  DAC: 00000000
Backtrace: 
[<81862984>] (_raw_spin_unlock_irqrestore) from [<80257f80>] (spin_unlock_irqrestore include/linux/spinlock.h:406 [inline])
[<81862984>] (_raw_spin_unlock_irqrestore) from [<80257f80>] (unlock_task_sighand include/linux/sched/signal.h:756 [inline])
[<81862984>] (_raw_spin_unlock_irqrestore) from [<80257f80>] (do_send_sig_info+0x70/0xa0 kernel/signal.c:1301)
[<80257f10>] (do_send_sig_info) from [<8025801c>] (group_send_sig_info+0x6c/0x78 kernel/signal.c:1451)
 r9:ec43df00 r8:00000001 r7:82ee6000 r6:00000001 r5:0000001c r4:00000000
[<80257fb0>] (group_send_sig_info) from [<80375f4c>] (bpf_send_signal_common+0xc8/0x10c kernel/trace/bpf_trace.c:881)
 r9:ec43df00 r8:00000001 r7:0000001c r6:82ee6000 r5:00000000 r4:dfec7000
[<80375e84>] (bpf_send_signal_common) from [<80375fa4>] (____bpf_send_signal kernel/trace/bpf_trace.c:886 [inline])
[<80375e84>] (bpf_send_signal_common) from [<80375fa4>] (bpf_send_signal+0x14/0x1c kernel/trace/bpf_trace.c:884)
 r9:ec43df00 r8:ec43df44 r7:84f4c7c8 r6:80375f90 r5:00000000 r4:dfec7000
[<80375f90>] (bpf_send_signal) from [<7f031e68>] (bpf_prog_8cc4ff36b5985b6a+0x60/0x6c)
[<7f031e08>] (bpf_prog_8cc4ff36b5985b6a) from [<80376664>] (bpf_dispatcher_nop_func include/linux/bpf.h:1231 [inline])
[<7f031e08>] (bpf_prog_8cc4ff36b5985b6a) from [<80376664>] (__bpf_prog_run include/linux/filter.h:651 [inline])
[<7f031e08>] (bpf_prog_8cc4ff36b5985b6a) from [<80376664>] (bpf_prog_run include/linux/filter.h:658 [inline])
[<7f031e08>] (bpf_prog_8cc4ff36b5985b6a) from [<80376664>] (__bpf_trace_run kernel/trace/bpf_trace.c:2381 [inline])
[<7f031e08>] (bpf_prog_8cc4ff36b5985b6a) from [<80376664>] (bpf_trace_run2+0x70/0x158 kernel/trace/bpf_trace.c:2420)
 r9:82ee6000 r8:80200288 r7:84f4c7c8 r6:000000ad r5:00000000 r4:dfec7000
[<803765f4>] (bpf_trace_run2) from [<80209780>] (__bpf_trace_sys_enter+0x28/0x30 include/trace/events/syscalls.h:18)
 r8:80200288 r7:84f4c7c8 r6:000000ad r5:ec43dfb0 r4:82ee6000
[<80209758>] (__bpf_trace_sys_enter) from [<8020a8cc>] (__traceiter_sys_enter include/trace/events/syscalls.h:18 [inline])
[<80209758>] (__bpf_trace_sys_enter) from [<8020a8cc>] (trace_sys_enter include/trace/events/syscalls.h:18 [inline])
[<80209758>] (__bpf_trace_sys_enter) from [<8020a8cc>] (syscall_trace_enter+0x100/0x1d0 arch/arm/kernel/ptrace.c:869)
[<8020a7cc>] (syscall_trace_enter) from [<80200234>] (__sys_trace+0x8/0x3c)
Exception stack(0xec43dfa8 to 0xec43dff0)
dfa0:                   00000000 00000000 00000000 00000000 00000080 00000000
dfc0: 00000000 00000000 00000000 000000ad 00000000 00000000 030022d0 3b9aca00
dfe0: 00098968 03045c88 00068164 7ec6e574
 r7:000000ad r6:00000000 r5:00000000 r4:00000000