INFO: task kworker/0:1:10 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:10 tgid:10 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16005 r9:00000000 r8:82714b74 r7:00000002 r6:df841d94 r5:82e2ec00 r4:82e2ec00 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82e2ec00 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:df841e20 r8:00000000 r7:ffffffff r6:00000000 r5:84d7d080 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84d7d080 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82e2ec00 r8:00800000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0cd000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:eadbf000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84ced754 r4:84ced400 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:dddd00c0 r6:82c16000 r5:84ced754 r4:82cb2000 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82e2ec00 r9:82cb202c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:82cb2000 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df839e90 r8:82cb1b40 r7:82cb2000 r6:80267c04 r5:82e2ec00 r4:82cb1940 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf841fb0 to 0xdf841ff8) 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 r5:80271124 r4:82cb1940 INFO: task kworker/1:0:24 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:24 tgid:24 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:df87dd94 r5:82e3b000 r4:82e3b000 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82e3b000 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df87de20 r8:00000000 r7:ffffffff r6:00000000 r5:8503b4c0 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8503b4c0 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82e3b000 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f013000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:df95d000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84c5e354 r4:84c5e000 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84c5e354 r4:82cb2180 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82e3b000 r9:82cb21ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82cb2180 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819d60 r8:82cc3e40 r7:82cb2180 r6:80267c04 r5:82e3b000 r4:82cc3c00 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf87dfb0 to 0xdf87dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:82cc3c00 INFO: task kworker/1:1:45 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:45 tgid:45 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:df919d94 r5:82ebbc00 r4:82ebbc00 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82ebbc00 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df919e20 r8:00000000 r7:ffffffff r6:00000000 r5:8437f080 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8437f080 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82ebbc00 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f015000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:df883000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84bccb54 r4:84bcc800 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84bccb54 r4:82fb5400 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82ebbc00 r9:82fb542c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:82fb5400 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df87de90 r8:82fb47c0 r7:82fb5400 r6:80267c04 r5:82ebbc00 r4:82fb46c0 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf919fb0 to 0xdf919ff8) 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 r5:80271124 r4:82fb46c0 INFO: task kworker/0:3:123 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:123 tgid:123 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16005 r9:00000000 r8:82714b74 r7:00000002 r6:dfa09d94 r5:836bd400 r4:836bd400 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:836bd400 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:dfa09e20 r8:00000000 r7:ffffffff r6:00000000 r5:84d97c80 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84d97c80 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:836bd400 r8:00800000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0c7000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:ead75000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84ce3f54 r4:84ce3c00 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:dddd00c0 r6:82c16000 r5:84ce3f54 r4:836cc300 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:836bd400 r9:836cc32c r8:61c88647 r7:dddd00e0 r6:82604d40 r5:dddd00c0 r4:836cc300 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:dfa01e90 r8:836d1340 r7:836cc300 r6:80267c04 r5:836bd400 r4:836d1240 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfa09fb0 to 0xdfa09ff8) 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 r5:80271124 r4:836d1240 INFO: task kworker/1:2:3019 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:0 pid:3019 tgid:3019 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:df9a9d94 r5:83e80c00 r4:83e80c00 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:83e80c00 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df9a9e20 r8:00000000 r7:ffffffff r6:00000000 r5:843bcf80 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:843bcf80 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:83e80c00 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f013000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:df981000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84bcff54 r4:84bcfc00 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84bcff54 r4:83473680 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:83e80c00 r9:834736ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473680 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df87de90 r8:836d10c0 r7:83473680 r6:80267c04 r5:83e80c00 r4:82f03140 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9a9fb0 to 0xdf9a9ff8) 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 r5:80271124 r4:82f03140 INFO: task kworker/1:3:3032 blocked for more than 450 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:3032 tgid:3032 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:df9edd94 r5:83e82400 r4:83e82400 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:83e82400 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df9ede20 r8:00000000 r7:ffffffff r6:00000000 r5:84e16e40 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84e16e40 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:83e82400 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f0ed000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:eb11f000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84c5cf54 r4:84c5cc00 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84c5cf54 r4:83473880 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:83e82400 r9:834738ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473880 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df87de90 r8:849b2640 r7:83473880 r6:80267c04 r5:83e82400 r4:84250540 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9edfb0 to 0xdf9edff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:84250540 INFO: task kworker/1:4:3033 blocked for more than 451 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:3033 tgid:3033 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:df9f5d94 r5:82e98000 r4:82e98000 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82e98000 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:df9f5e20 r8:00000000 r7:ffffffff r6:00000000 r5:866d7b00 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:866d7b00 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82e98000 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f3bf000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:eb349000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:86381354 r4:86381000 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:86381354 r4:83473800 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82e98000 r9:8347382c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473800 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df87de90 r8:849b2cc0 r7:83473800 r6:80267c04 r5:82e98000 r4:84250540 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9f5fb0 to 0xdf9f5ff8) 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 r5:80271124 r4:84250540 INFO: task kworker/1:5:3035 blocked for more than 451 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:0 pid:3035 tgid:3035 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:dfa4dd94 r5:82e9a400 r4:82e9a400 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82e9a400 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:dfa4de20 r8:00000000 r7:ffffffff r6:00000000 r5:8533cc00 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8533cc00 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82e9a400 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f179000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:eb6f3000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84c5ef54 r4:84c5ec00 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84c5ef54 r4:83473980 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82e9a400 r9:834739ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473980 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df9f5e90 r8:83c02800 r7:83473980 r6:80267c04 r5:82e9a400 r4:84364dc0 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfa4dfb0 to 0xdfa4dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:84364dc0 INFO: task kworker/1:6:3038 blocked for more than 451 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:6 state:D stack:0 pid:3038 tgid:3038 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:dfa8dd94 r5:82e2d400 r4:82e2d400 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:82e2d400 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:dfa8de20 r8:00000000 r7:ffffffff r6:00000000 r5:8580ad80 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8580ad80 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:82e2d400 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f245000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:ed389000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:843e3754 r4:843e3400 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:843e3754 r4:83473900 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:82e2d400 r9:8347392c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473900 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df9f5e90 r8:849ca280 r7:83473900 r6:80267c04 r5:82e2d400 r4:8438d080 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfa8dfb0 to 0xdfa8dff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:8438d080 INFO: task kworker/1:7:3039 blocked for more than 451 seconds. Not tainted 6.10.0-rc1-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:7 state:D stack:0 pid:3039 tgid:3039 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<818f4db8>] (__schedule) from [<818f59bc>] (__schedule_loop kernel/sched/core.c:6822 [inline]) [<818f4db8>] (__schedule) from [<818f59bc>] (schedule+0x2c/0xfc kernel/sched/core.c:6837) r10:82c16205 r9:00000000 r8:82714b74 r7:00000002 r6:dfaadd94 r5:84154800 r4:84154800 [<818f5990>] (schedule) from [<818f5fcc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6894) r5:84154800 r4:82714b70 [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818f5fb4>] (schedule_preempt_disabled) from [<818f88b4>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818f85cc>] (__mutex_lock.constprop.0) from [<818f9180>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:dfaade20 r8:00000000 r7:ffffffff r6:00000000 r5:85923280 r4:00000000 [<818f916c>] (__mutex_lock_slowpath) from [<818f91c0>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<818f9184>] (mutex_lock) from [<804a5088>] (_vm_unmap_aliases+0x60/0x2e8 mm/vmalloc.c:2828) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vm_reset_perms mm/vmalloc.c:3257 [inline]) [<804a5028>] (_vm_unmap_aliases) from [<804a8ee4>] (vfree+0x170/0x1e4 mm/vmalloc.c:3336) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85923280 r4:00000000 [<804a8d74>] (vfree) from [<804fb7cc>] (execmem_free+0x30/0x64 mm/execmem.c:69) r9:84154800 r8:01800000 r7:00000000 r6:82c16200 r5:00001000 r4:7f27d000 [<804fb79c>] (execmem_free) from [<80395668>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1073) r5:00001000 r4:eb407000 [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_binary_free kernel/bpf/core.c:1119 [inline]) [<80395658>] (bpf_jit_free_exec) from [<80395a48>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1243) [<803959e0>] (bpf_jit_free) from [<80396b7c>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2803) r5:84c79354 r4:84c79000 [<80396a30>] (bpf_prog_free_deferred) from [<802671bc>] (process_one_work+0x1c4/0x510 kernel/workqueue.c:3231) r7:ddde40c0 r6:82c16200 r5:84c79354 r4:83473a00 [<80266ff8>] (process_one_work) from [<80267df0>] (process_scheduled_works kernel/workqueue.c:3312 [inline]) [<80266ff8>] (process_one_work) from [<80267df0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3393) r10:84154800 r9:83473a2c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:83473a00 [<80267c04>] (worker_thread) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df9f5e90 r8:849ca340 r7:83473a00 r6:80267c04 r5:84154800 r4:8438d040 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfaadfb0 to 0xdfaadff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80271124 r4:8438d040 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 PID: 32 Comm: khungtaskd Not tainted 6.10.0-rc1-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<818d3698>] (dump_backtrace) from [<818d3794>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:81fe11d0 [<818d377c>] (show_stack) from [<818f0dc0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818d377c>] (show_stack) from [<818f0dc0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<818f0d50>] (dump_stack_lvl) from [<818f0de4>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000001 r4:00000001 [<818f0dcc>] (dump_stack) from [<818c0994>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<818c0834>] (nmi_cpu_backtrace) from [<818c0ae0>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c5d0 r5:8261a7cc r4:ffffffff [<818c09b0>] (nmi_trigger_cpumask_backtrace) from [<802103c8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00000001 r8:828a51a0 r7:8260c734 r6:00007d6b r5:8261ad88 r4:8639821c [<802103b0>] (arch_trigger_cpumask_backtrace) from [<80352730>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]) [<802103b0>] (arch_trigger_cpumask_backtrace) from [<80352730>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<802103b0>] (arch_trigger_cpumask_backtrace) from [<80352730>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803522a4>] (watchdog) from [<80271228>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819e58 r8:82cc6e00 r7:00000000 r6:803522a4 r5:82e3e000 r4:82f9e900 [<80271124>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) 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 r5:80271124 r4:82f9e900 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2816 Comm: syslogd Not tainted 6.10.0-rc1-syzkaller #0 Hardware name: ARM-Versatile Express PC is at mutex_unlock+0x0/0x44 kernel/locking/mutex.c:543 LR is at __unix_dgram_recvmsg+0x2cc/0x4c8 net/unix/af_unix.c:2470 pc : [<818f753c>] lr : [<81686e80>] psr: 60000013 sp : ec3a1da0 ip : dddd4928 fp : ec3a1e24 r10: 00000000 r9 : 0000007a r8 : 0000007a r7 : 84446000 r6 : 82cfe634 r5 : 82cfe400 r4 : 85084480 r3 : 835b6c00 r2 : 00000000 r1 : 00000000 r0 : 82cfe634 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84304800 DAC: fffffffd Call trace: [<81686bb4>] (__unix_dgram_recvmsg) from [<816870c0>] (unix_dgram_recvmsg+0x44/0x4c net/unix/af_unix.c:2486) r10:00000001 r9:00000000 r8:01ee31d0 r7:00000000 r6:84446000 r5:ec3a1e68 r4:8168707c [<8168707c>] (unix_dgram_recvmsg) from [<813cfe78>] (sock_recvmsg_nosec net/socket.c:1046 [inline]) [<8168707c>] (unix_dgram_recvmsg) from [<813cfe78>] (sock_recvmsg+0x50/0x78 net/socket.c:1068) r4:8168707c [<813cfe28>] (sock_recvmsg) from [<813cff44>] (sock_read_iter+0xa4/0xfc net/socket.c:1138) r7:84446000 r6:843d6540 r5:ec3a1f08 r4:ec3a1ef0 [<813cfea0>] (sock_read_iter) from [<805013fc>] (new_sync_read fs/read_write.c:395 [inline]) [<813cfea0>] (sock_read_iter) from [<805013fc>] (vfs_read+0x2ec/0x31c fs/read_write.c:476) r7:00000000 r6:835b6c00 r5:000000ff r4:843d6540 [<80501110>] (vfs_read) from [<80501e8c>] (ksys_read+0xc4/0xf8 fs/read_write.c:619) r10:00000003 r9:835b6c00 r8:8020029c r7:000000ff r6:01ee31d0 r5:843d6540 r4:843d6540 [<80501dc8>] (ksys_read) from [<80501ed0>] (__do_sys_read fs/read_write.c:629 [inline]) [<80501dc8>] (ksys_read) from [<80501ed0>] (sys_read+0x10/0x14 fs/read_write.c:627) r7:00000003 r6:01ee32d0 r5:76f135a0 r4:fffffc00 [<80501ec0>] (sys_read) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xec3a1fa8 to 0xec3a1ff0) 1fa0: fffffc00 76f135a0 00000000 01ee31d0 000000ff 00000000 1fc0: fffffc00 76f135a0 01ee32d0 00000003 00000000 01ee31c8 76ed854c 76ed8548 1fe0: 76ed79f8 7e9abc70 76e4d2ec 76d5b2fc