Hello, syzbot found the following issue on: HEAD commit: 610a9b8f49fb Linux 6.7-rc8 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=137c4981e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=c1d9baf5d2241e14 dashboard link: https://syzkaller.appspot.com/bug?extid=fe8f8efd070d727de971 compiler: arm-linux-gnueabi-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d5c931e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14e4e3d9e80000 Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/8ead8862021c/non_bootable_disk-610a9b8f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/5dcc5fecebbd/vmlinux-610a9b8f.xz kernel image: https://storage.googleapis.com/syzbot-assets/ac6cb620d377/zImage-610a9b8f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+fe8f8efd070d727de971@xxxxxxxxxxxxxxxxxxxxxxxxx INFO: task kworker/0:1:9 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:9 tgid:9 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:df83dda4 r5:82dee000 r4:82dee000 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:82dee000 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:df83de30 r8:00000000 r7:ffffffff r6:00000000 r5:84791b40 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84791b40 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847f7400 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f077000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:ea91f000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847f7750 r4:82c0bc00 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:82dee000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847f7750 r4:82c0bc00 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:82dee000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:82c0bc2c r4:82c0bc00 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df839e90 r8:82cb8640 r7:82c0bc00 r6:80266bfc r5:82dee000 r4:82cb8100 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf83dfb0 to 0xdf83dff8) 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 r5:8026e198 r4:82cb8100 INFO: task kworker/1:3:117 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:117 tgid:117 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16205 r9:00000000 r8:8270dad4 r7:00000002 r6:df981da4 r5:834f6c00 r4:834f6c00 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:834f6c00 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:df981e30 r8:00000000 r7:ffffffff r6:00000000 r5:846de4c0 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:846de4c0 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:844ee400 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f00b000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:df93b000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:844ee750 r4:82e58f80 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:834f6c00 r8:00000080 r7:ddde42c0 r6:82c16200 r5:844ee750 r4:82e58f80 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:834f6c00 r8:ddde42e0 r7:82604d40 r6:ddde42c0 r5:82e58fac r4:82e58f80 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df999e90 r8:83421500 r7:82e58f80 r6:80266bfc r5:834f6c00 r4:82eb9e40 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf981fb0 to 0xdf981ff8) 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 r5:8026e198 r4:82eb9e40 INFO: task kworker/0:3:1564 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:0 pid:1564 tgid:1564 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:eada5da4 r5:8362a400 r4:8362a400 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:8362a400 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:eada5e30 r8:00000000 r7:ffffffff r6:00000000 r5:8481e980 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8481e980 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847ef000 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0db000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:e487d000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847ef350 r4:83e72200 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:8362a400 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847ef350 r4:83e72200 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:8362a400 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:83e7222c r4:83e72200 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df839e90 r8:8385d7c0 r7:83e72200 r6:80266bfc r5:8362a400 r4:83e76d40 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeada5fb0 to 0xeada5ff8) 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 r5:8026e198 r4:83e76d40 INFO: task kworker/0:0:3003 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:3003 tgid:3003 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:df9a5da4 r5:82dfe000 r4:82dfe000 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:82dfe000 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:df9a5e30 r8:00000000 r7:ffffffff r6:00000000 r5:8481e900 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8481e900 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847eec00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f0d9000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:e486f000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847eef50 r4:84563380 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:82dfe000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847eef50 r4:84563380 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:82dfe000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:845633ac r4:84563380 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eada5e90 r8:84551600 r7:84563380 r6:80266bfc r5:82dfe000 r4:83ee7880 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9a5fb0 to 0xdf9a5ff8) 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 r5:8026e198 r4:83ee7880 INFO: task kworker/1:1:3010 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:1 state:D stack:0 pid:3010 tgid:3010 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16205 r9:00000000 r8:8270dad4 r7:00000002 r6:df88dda4 r5:82dfbc00 r4:82dfbc00 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:82dfbc00 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:df88de30 r8:00000000 r7:ffffffff r6:00000000 r5:8478a640 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8478a640 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:84652400 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f165000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:eab0f000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:84652750 r4:84395d00 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:82dfbc00 r8:00000080 r7:ddde42c0 r6:82c16200 r5:84652750 r4:84395d00 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:82dfbc00 r8:ddde42e0 r7:82604d40 r6:ddde42c0 r5:84395d2c r4:84395d00 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df981e90 r8:83e7cdc0 r7:84395d00 r6:80266bfc r5:82dfbc00 r4:82cc8fc0 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf88dfb0 to 0xdf88dff8) 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 r5:8026e198 r4:82cc8fc0 INFO: task kworker/1:4:3011 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:0 pid:3011 tgid:3011 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16205 r9:00000000 r8:8270dad4 r7:00000002 r6:df9a1da4 r5:82df9800 r4:82df9800 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:82df9800 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:df9a1e30 r8:00000000 r7:ffffffff r6:00000000 r5:8461bc00 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8461bc00 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:848f7400 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f083000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfb79000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:848f7750 r4:84395e00 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:82df9800 r8:00000080 r7:ddde42c0 r6:82c16200 r5:848f7750 r4:84395e00 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:82df9800 r8:ddde42e0 r7:82604d40 r6:ddde42c0 r5:84395e2c r4:84395e00 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df88de90 r8:84556c80 r7:84395e00 r6:80266bfc r5:82df9800 r4:82cc8fc0 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9a1fb0 to 0xdf9a1ff8) 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 r5:8026e198 r4:82cc8fc0 INFO: task kworker/1:5:3013 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:0 pid:3013 tgid:3013 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16205 r9:00000000 r8:8270dad4 r7:00000002 r6:df98dda4 r5:83e66000 r4:83e66000 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:83e66000 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16205 r9:df98de30 r8:00000000 r7:ffffffff r6:00000000 r5:84836400 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16205 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84836400 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847ab800 r8:00000000 r7:00000000 r6:82c16200 r5:00001000 r4:7f029000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:df995000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847abb50 r4:84395b80 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:83e66000 r8:00000080 r7:ddde42c0 r6:82c16200 r5:847abb50 r4:84395b80 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:83e66000 r8:ddde42e0 r7:82604d40 r6:ddde42c0 r5:84395bac r4:84395b80 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9a1e90 r8:82cc8fc0 r7:84395b80 r6:80266bfc r5:83e66000 r4:83dc4f40 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf98dfb0 to 0xdf98dff8) 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 r5:8026e198 r4:83dc4f40 INFO: task kworker/0:2:3016 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:0 pid:3016 tgid:3016 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:df9bdda4 r5:83e51800 r4:83e51800 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:83e51800 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:df9bde30 r8:00000000 r7:ffffffff r6:00000000 r5:84832040 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:84832040 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847f4c00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f02d000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:dfa03000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847f4f50 r4:84563400 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:83e51800 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847f4f50 r4:84563400 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:83e51800 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:8456342c r4:84563400 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eada5e90 r8:8453a140 r7:84563400 r6:80266bfc r5:83e51800 r4:8356cc40 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9bdfb0 to 0xdf9bdff8) 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 r5:8026e198 r4:8356cc40 INFO: task kworker/0:4:3017 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:0 pid:3017 tgid:3017 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:df9c5da4 r5:83e50000 r4:83e50000 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:83e50000 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:df9c5e30 r8:00000000 r7:ffffffff r6:00000000 r5:8481ec00 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8481ec00 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847ef800 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f125000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:e889b000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847efb50 r4:84563480 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:83e50000 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847efb50 r4:84563480 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:83e50000 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:845634ac r4:84563480 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9bde90 r8:8453a700 r7:84563480 r6:80266bfc r5:83e50000 r4:840eafc0 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9c5fb0 to 0xdf9c5ff8) 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 r5:8026e198 r4:840eafc0 INFO: task kworker/0:5:3019 blocked for more than 450 seconds. Not tainted 6.7.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:5 state:D stack:0 pid:3019 tgid:3019 ppid:2 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Backtrace: [<81855408>] (__schedule) from [<81856028>] (__schedule_loop kernel/sched/core.c:6763 [inline]) [<81855408>] (__schedule) from [<81856028>] (schedule+0x2c/0xb8 kernel/sched/core.c:6778) r10:82c16005 r9:00000000 r8:8270dad4 r7:00000002 r6:df9cdda4 r5:83e53c00 r4:83e53c00 [<81855ffc>] (schedule) from [<818565d0>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6835) r5:83e53c00 r4:8270dad0 [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<818565b8>] (schedule_preempt_disabled) from [<81858eb8>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:747) [<81858bd0>] (__mutex_lock.constprop.0) from [<81859784>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:82c16005 r9:df9cde30 r8:00000000 r7:ffffffff r6:00000000 r5:8481ed40 r4:00000000 [<81859770>] (__mutex_lock_slowpath) from [<818597c4>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<81859788>] (mutex_lock) from [<804898b0>] (_vm_unmap_aliases+0x60/0x2e4 mm/vmalloc.c:2267) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vm_reset_perms mm/vmalloc.c:2753 [inline]) [<80489850>] (_vm_unmap_aliases) from [<8048d450>] (vfree+0x170/0x1e0 mm/vmalloc.c:2832) r10:82c16005 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8481ed40 r4:00000000 [<8048d2e0>] (vfree) from [<802e9a2c>] (module_memfree+0x30/0x50 kernel/module/main.c:1189) r9:847efc00 r8:00000000 r7:00000000 r6:82c16000 r5:00001000 r4:7f127000 [<802e99fc>] (module_memfree) from [<80386f54>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1023) r5:00001000 r4:e88a3000 [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_binary_free kernel/bpf/core.c:1069 [inline]) [<80386f44>] (bpf_jit_free_exec) from [<80387114>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1194) [<803870ac>] (bpf_jit_free) from [<80387318>] (bpf_prog_free_deferred+0x188/0x1a0 kernel/bpf/core.c:2744) r5:847eff50 r4:84563500 [<80387190>] (bpf_prog_free_deferred) from [<802668f4>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2627) r9:83e53c00 r8:00000000 r7:dddd12c0 r6:82c16000 r5:847eff50 r4:84563500 [<80266758>] (process_one_work) from [<80266e3c>] (process_scheduled_works kernel/workqueue.c:2700 [inline]) [<80266758>] (process_one_work) from [<80266e3c>] (worker_thread+0x240/0x48c kernel/workqueue.c:2781) r10:61c88647 r9:83e53c00 r8:dddd12e0 r7:82604d40 r6:dddd12c0 r5:8456352c r4:84563500 [<80266bfc>] (worker_thread) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9bde90 r8:83d869c0 r7:84563500 r6:80266bfc r5:83e53c00 r4:840eafc0 [<8026e198>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf9cdfb0 to 0xdf9cdff8) 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 r5:8026e198 r4:840eafc0 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8183402c>] (dump_backtrace) from [<81834128>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000113 r5:60000193 r4:81fc0e84 [<81834110>] (show_stack) from [<818516ac>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81834110>] (show_stack) from [<818516ac>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81851664>] (dump_stack_lvl) from [<818516d0>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<818516b8>] (dump_stack) from [<818213e0>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81821280>] (nmi_cpu_backtrace) from [<8182152c>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c494 r5:8261a7d8 r4:ffffffff [<818213fc>] (nmi_trigger_cpumask_backtrace) from [<802104d4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827df3df r8:8289ceb4 r7:8260c5e4 r6:00007d6b r5:8261adc8 r4:848fef2c [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<802104bc>] (arch_trigger_cpumask_backtrace) from [<80346b50>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<803466c4>] (watchdog) from [<8026e29c>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82e21340 r7:00000000 r6:803466c4 r5:82e70c00 r4:82ec6940 [<8026e198>] (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 r5:8026e198 r4:82ec6940 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2801 Comm: klogd Not tainted 6.7.0-rc8-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x76da8608 LR is at 0x76d8d764 pc : [<76da8608>] lr : [<76d8d764>] psr: 20000010 sp : 7eedebc8 ip : 76e70e78 fp : 76f4a21a r10: 76e70e60 r9 : 00000006 r8 : 76e70e60 r7 : 7eedebf4 r6 : 7eedebf8 r5 : 7eedec14 r4 : 01bfb1a8 r3 : 01bfb258 r2 : 01bfb008 r1 : 00002000 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment none Control: 30c5387d Table: 842afd80 DAC: 00000000 Backtrace: invalid frame pointer 0x76f4a21a --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
