INFO: task kworker/0:3:28752 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:28752 tgid:28752 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:dfe51dac r5:84aa3000 r4:84aa3000 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:84aa3000 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:dfe51e38 r8:00000000 r7:ffffffff r6:00000000 r5:84cbcb80 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84cbcb80 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84aa3000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f105000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:df969000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:8506ff50 r4:8506fc00 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:8506ff50 r4:85024980 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:84aa3000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:850249ac r4:85024980 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eeb89e90 r8:843dc180 r7:85024980 r6:8026732c r5:84aa3000 r4:843dc280 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfe51fb0 to 0xdfe51ff8) 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 r5:8026e744 r4:843dc280 INFO: task kworker/1:36:13838 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:36 state:D stack:0 pid:13838 tgid:13838 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:ec2f5dac r5:836ec800 r4:836ec800 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:836ec800 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:ec2f5e38 r8:00000000 r7:ffffffff r6:00000000 r5:85008300 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85008300 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:836ec800 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0c3000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec7c1000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84c42750 r4:84c42400 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:84c42750 r4:d6864000 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:836ec800 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:d686402c r4:d6864000 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec2f1e90 r8:85025140 r7:d6864000 r6:8026732c r5:836ec800 r4:85025540 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec2f5fb0 to 0xec2f5ff8) 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 r5:8026e744 r4:85025540 INFO: task kworker/0:38:13840 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:38 state:D stack:0 pid:13840 tgid:13840 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec791dac r5:835fb000 r4:835fb000 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:835fb000 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec791e38 r8:00000000 r7:ffffffff r6:00000000 r5:d6b35b40 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:d6b35b40 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:835fb000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0bb000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec3a3000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84d93b50 r4:84d93800 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84d93b50 r4:84cfd700 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:835fb000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84cfd72c r4:84cfd700 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec22de90 r8:bba25d80 r7:84cfd700 r6:8026732c r5:835fb000 r4:84cdae80 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec791fb0 to 0xec791ff8) 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 r5:8026e744 r4:84cdae80 INFO: task kworker/0:39:13841 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:39 state:D stack:0 pid:13841 tgid:13841 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec79ddac r5:835fc800 r4:835fc800 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:835fc800 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec79de38 r8:00000000 r7:ffffffff r6:00000000 r5:d6b35380 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:d6b35380 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:835fc800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0bd000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec3a9000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84d93f50 r4:84d93c00 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84d93f50 r4:851a9d80 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:835fc800 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:851a9dac r4:851a9d80 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec791e90 r8:84f542c0 r7:851a9d80 r6:8026732c r5:835fc800 r4:84cdae80 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec79dfb0 to 0xec79dff8) 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 r5:8026e744 r4:84cdae80 INFO: task kworker/0:40:13842 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:40 state:D stack:0 pid:13842 tgid:13842 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec7a1dac r5:843a8000 r4:843a8000 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843a8000 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec7a1e38 r8:00000000 r7:ffffffff r6:00000000 r5:84eb8540 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84eb8540 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843a8000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0bf000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec3c3000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84d91b50 r4:84d91800 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84d91b50 r4:84f61300 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843a8000 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84f6132c r4:84f61300 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec79de90 r8:8504bf00 r7:84f61300 r6:8026732c r5:843a8000 r4:84cdae80 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec7a1fb0 to 0xec7a1ff8) 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 r5:8026e744 r4:84cdae80 INFO: task kworker/0:41:13844 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:41 state:D stack:0 pid:13844 tgid:13844 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec7a5dac r5:843a8c00 r4:843a8c00 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843a8c00 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec7a5e38 r8:00000000 r7:ffffffff r6:00000000 r5:848a1f00 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:848a1f00 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843a8c00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0b7000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec2ff000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84d92f50 r4:84d92c00 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84d92f50 r4:84f61600 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843a8c00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:84f6162c r4:84f61600 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec7a1e90 r8:85017b80 r7:84f61600 r6:8026732c r5:843a8c00 r4:84cdae80 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec7a5fb0 to 0xec7a5ff8) 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 r5:8026e744 r4:84cdae80 INFO: task kworker/0:42:13845 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:42 state:D stack:0 pid:13845 tgid:13845 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec7a9dac r5:843a9800 r4:843a9800 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843a9800 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec7a9e38 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7900 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7900 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843a9800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0cd000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec80d000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84811b50 r4:84811800 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84811b50 r4:bb96e000 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843a9800 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:bb96e02c r4:bb96e000 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec7a5e90 r8:84a43980 r7:bb96e000 r6:8026732c r5:843a9800 r4:bba26a40 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec7a9fb0 to 0xec7a9ff8) 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 r5:8026e744 r4:bba26a40 INFO: task kworker/0:43:13846 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:43 state:D stack:0 pid:13846 tgid:13846 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:8270dd7c r7:00000002 r6:ec7addac r5:843aa400 r4:843aa400 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843aa400 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:ec7ade38 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7b80 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7b80 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843aa400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0cf000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec89b000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84812350 r4:84812000 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:dddd1280 r6:82c16000 r5:84812350 r4:bb96e080 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843aa400 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:bb96e0ac r4:bb96e080 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec7a9e90 r8:d6965180 r7:bb96e080 r6:8026732c r5:843aa400 r4:bba26a40 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec7adfb0 to 0xec7adff8) 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 r5:8026e744 r4:bba26a40 INFO: task kworker/1:37:13848 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:37 state:D stack:0 pid:13848 tgid:13848 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:ec7b5dac r5:843abc00 r4:843abc00 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843abc00 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:ec7b5e38 r8:00000000 r7:ffffffff r6:00000000 r5:85168c00 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:85168c00 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843abc00 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0c1000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec7bb000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84d93750 r4:84d93400 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:84d93750 r4:d6864080 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843abc00 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:d68640ac r4:d6864080 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec2f5e90 r8:84f47880 r7:d6864080 r6:8026732c r5:843abc00 r4:85011380 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec7b5fb0 to 0xec7b5ff8) 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 r5:8026e744 r4:85011380 INFO: task kworker/1:38:13849 blocked for more than 430 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:38 state:D stack:0 pid:13849 tgid:13849 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<8186c6ec>] (__schedule) from [<8186d324>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186c6ec>] (__schedule) from [<8186d324>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16205 r9:00000000 r8:8270dd7c r7:00000002 r6:ec2f9dac r5:843ac800 r4:843ac800 [<8186d2f8>] (schedule) from [<8186d8f0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:843ac800 r4:8270dd78 [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186d8d8>] (schedule_preempt_disabled) from [<818701d8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186fef0>] (__mutex_lock.constprop.0) from [<81870aa4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:ec2f9e38 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7100 r4:00000000 [<81870a90>] (__mutex_lock_slowpath) from [<81870ae4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81870aa8>] (mutex_lock) from [<8048cffc>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<8048cf9c>] (_vm_unmap_aliases) from [<80490b9c>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84cd7100 r4:00000000 [<80490a2c>] (vfree) from [<802ea2f0>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:843ac800 r8:00000080 r7:00000000 r6:82c16200 r5:00001000 r4:7f0c5000 [<802ea2c0>] (module_memfree) from [<803882d8>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1048) r5:00001000 r4:ec7c7000 [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_binary_free kernel/bpf/core.c:1094 [inline]) [<803882c8>] (bpf_jit_free_exec) from [<80388498>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1218) [<80388430>] (bpf_jit_free) from [<80389578>] (bpf_prog_free_deferred+0x14c/0x164 kernel/bpf/core.c:2772) r5:84810750 r4:84810400 [<8038942c>] (bpf_prog_free_deferred) from [<80267024>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r7:ddde4280 r6:82c16200 r5:84810750 r4:d6864100 [<80266e88>] (process_one_work) from [<8026756c>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266e88>] (process_one_work) from [<8026756c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:843ac800 r8:ddde42a0 r7:82604d40 r6:ddde4280 r5:d686412c r4:d6864100 [<8026732c>] (worker_thread) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:ec2f5e90 r8:84ec7f80 r7:d6864100 r6:8026732c r5:843ac800 r4:84f47540 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xec2f9fb0 to 0xec2f9ff8) 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 r5:8026e744 r4:84f47540 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 1 CPU: 1 PID: 31 Comm: khungtaskd Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8184ae84>] (dump_backtrace) from [<8184af80>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fc5e50 [<8184af68>] (show_stack) from [<81868888>] (__dump_stack lib/dump_stack.c:88 [inline]) [<8184af68>] (show_stack) from [<81868888>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81868840>] (dump_stack_lvl) from [<818688ac>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<81868894>] (dump_stack) from [<81838238>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<818380d8>] (nmi_cpu_backtrace) from [<81838384>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8260c494 r5:8261a7d8 r4:ffffffff [<81838254>] (nmi_trigger_cpumask_backtrace) from [<80210534>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827df45f r8:8289ceb8 r7:8260c5ec r6:00007d2f r5:8261adc8 r4:d641792c [<8021051c>] (arch_trigger_cpumask_backtrace) from [<80347d30>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021051c>] (arch_trigger_cpumask_backtrace) from [<80347d30>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<8021051c>] (arch_trigger_cpumask_backtrace) from [<80347d30>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803478a4>] (watchdog) from [<8026e848>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82f24700 r7:00000000 r6:803478a4 r5:82e90c00 r4:82ec97c0 [<8026e744>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8ddfb0 to 0xdf8ddff8) 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 r5:8026e744 r4:82ec97c0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2800 Comm: syslogd Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at preempt_count_add+0x0/0x150 kernel/sched/core.c:5852 LR is at kmap_atomic_prot include/linux/highmem-internal.h:102 [inline] LR is at kmap_atomic include/linux/highmem-internal.h:110 [inline] LR is at copy_page_from_iter_atomic+0x144/0x844 lib/iov_iter.c:499 pc : [<8027b170>] lr : [<807eba50>] psr: 80000013 sp : ec2b1dd0 ip : 00000000 fp : ec2b1e44 r10: 828574e8 r9 : 00000000 r8 : 0000071f r7 : dece4f24 r6 : 00800000 r5 : ec2b1ef0 r4 : 0000006d r3 : 00000199 r2 : 00000024 r1 : 00000e67 r0 : 00000001 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 8434d9c0 DAC: fffffffd Backtrace: [<807eb90c>] (copy_page_from_iter_atomic) from [<8041c82c>] (generic_perform_write+0xf8/0x230 mm/filemap.c:3936) r10:00007e67 r9:81a19600 r8:00000000 r7:84b40370 r6:ec2b1ef0 r5:8044a9bc r4:0000006d [<8041c734>] (generic_perform_write) from [<80446420>] (shmem_file_write_iter+0x7c/0x84 mm/shmem.c:2893) r10:00004004 r9:00d8b4d0 r8:d5ddfa80 r7:ec2b1ef0 r6:84b402e8 r5:ec2b1f08 r4:00000000 [<804463a4>] (shmem_file_write_iter) from [<804e88b0>] (call_write_iter include/linux/fs.h:2085 [inline]) [<804463a4>] (shmem_file_write_iter) from [<804e88b0>] (new_sync_write fs/read_write.c:497 [inline]) [<804463a4>] (shmem_file_write_iter) from [<804e88b0>] (vfs_write+0x218/0x3dc fs/read_write.c:590) r9:00d8b4d0 r8:ec2b1f68 r7:83ed8000 r6:0000006d r5:d5ddfa80 r4:804463a4 [<804e8698>] (vfs_write) from [<804e8bf8>] (ksys_write+0x78/0xf8 fs/read_write.c:643) r10:00000004 r9:83ed8000 r8:80200288 r7:00000000 r6:00007e67 r5:d5ddfa80 r4:d5ddfa80 [<804e8b80>] (ksys_write) from [<804e8c88>] (__do_sys_write fs/read_write.c:655 [inline]) [<804e8b80>] (ksys_write) from [<804e8c88>] (sys_write+0x10/0x14 fs/read_write.c:652) r7:00000004 r6:76f28548 r5:76f605a0 r4:00000003 [<804e8c78>] (sys_write) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec2b1fa8 to 0xec2b1ff0) 1fa0: 00000003 76f605a0 00000003 00d8b4d0 0000006d 00000000 1fc0: 00000003 76f605a0 76f28548 00000004 0000006d 00d8b1c8 76f2854c 7e986c84 1fe0: 76f27d74 7e986b80 76e52760 76dab39c