INFO: task kworker/0:1:10 blocked for more than 430 seconds. Not tainted 6.16.0-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 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a27638>] (__schedule) from [<81a285c0>] (__schedule_loop kernel/sched/core.c:6864 [inline]) [<81a27638>] (__schedule) from [<81a285c0>] (schedule+0x2c/0x130 kernel/sched/core.c:6879) r10:82918438 r9:df841d84 r8:00000002 r7:60000113 r6:df841d8c r5:8323ec00 r4:8323ec00 [<81a28594>] (schedule) from [<81a289a8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6936) r5:8323ec00 r4:82918434 [<81a28990>] (schedule_preempt_disabled) from [<81a2b08c>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<81a28990>] (schedule_preempt_disabled) from [<81a2b08c>] (__mutex_lock.constprop.0+0x300/0x6f8 kernel/locking/mutex.c:747) [<81a2ad8c>] (__mutex_lock.constprop.0) from [<81a2b558>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:8280c960 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:df841e08 r4:00000000 [<81a2b544>] (__mutex_lock_slowpath) from [<81a2b598>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:278) [<81a2b55c>] (mutex_lock) from [<804dda30>] (_vm_unmap_aliases+0x68/0x240 mm/vmalloc.c:2912) [<804dd9c8>] (_vm_unmap_aliases) from [<804e1920>] (vm_reset_perms mm/vmalloc.c:3343 [inline]) [<804dd9c8>] (_vm_unmap_aliases) from [<804e1920>] (vfree+0x16c/0x210 mm/vmalloc.c:3422) r10:83016070 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8ab94280 r4:00000000 [<804e17b4>] (vfree) from [<805474dc>] (execmem_free+0x30/0x50 mm/execmem.c:399) r9:83018005 r8:8323ec00 r7:00000000 r6:83018000 r5:00001000 r4:7f232000 [<805474ac>] (execmem_free) from [<803c5c60>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1077) r5:00001000 r4:e056d000 [<803c5c50>] (bpf_jit_free_exec) from [<803c6040>] (bpf_jit_binary_free kernel/bpf/core.c:1123 [inline]) [<803c5c50>] (bpf_jit_free_exec) from [<803c6040>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1246) [<803c5fd8>] (bpf_jit_free) from [<803c70bc>] (bpf_prog_free_deferred+0x138/0x150 kernel/bpf/core.c:2891) r5:84dadb8c r4:830b8500 [<803c6f84>] (bpf_prog_free_deferred) from [<8027e2bc>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3238) r7:dddced40 r6:83018000 r5:84dadb8c r4:830b8500 [<8027e108>] (process_one_work) from [<8027ef04>] (process_scheduled_works kernel/workqueue.c:3321 [inline]) [<8027e108>] (process_one_work) from [<8027ef04>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3402) r10:61c88647 r9:8323ec00 r8:830b852c r7:82804d40 r6:dddced40 r5:dddced60 r4:830b8500 [<8027ed08>] (worker_thread) from [<80285f30>] (kthread+0x12c/0x280 kernel/kthread.c:464) r10:00000000 r9:830b8500 r8:8027ed08 r7:df83de60 r6:830b8600 r5:8323ec00 r4:00000001 [<80285e04>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) 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 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80285e04 r4:830b6140 INFO: task kworker/0:1:10 is blocked on a mutex likely owned by task kworker/1:1:10922. task:kworker/1:1 state:R running task stack:0 pid:10922 tgid:10922 ppid:2 task_flags:0x4208060 flags:0x00000000 Workqueue: events bpf_prog_free_deferred Call trace: [<81a27638>] (__schedule) from [<81a289f4>] (preempt_schedule_irq+0x40/0xa8 kernel/sched/core.c:7109) r10:8280c9b4 r9:85443000 r8:80200be4 r7:dfdddd54 r6:ffffffff r5:85443000 r4:00000000 [<81a289b4>] (preempt_schedule_irq) from [<80200c04>] (svc_preempt+0x8/0x18) Exception stack(0xdfdddd20 to 0xdfdddd68) dd20: da574000 eaec5000 00000001 80239bb8 7f22e000 00000001 82abf044 82abe420 dd40: 7f22e000 eaec5000 8280c9b4 dfdddd9c dfdddda0 dfdddd70 80230af0 80239bd0 dd60: 80000013 ffffffff r5:80000013 r4:80239bd0 [<80230a8c>] (flush_tlb_kernel_range) from [<804dd7f4>] (__purge_vmap_area_lazy+0x284/0x458 mm/vmalloc.c:2336) r4:82abf064 [<804dd570>] (__purge_vmap_area_lazy) from [<804ddbac>] (_vm_unmap_aliases+0x1e4/0x240 mm/vmalloc.c:2951) r10:00000000 r9:00000000 r8:00000000 r7:ffffffff r6:dfddddc0 r5:dfddde08 r4:dfddddc0 [<804dd9c8>] (_vm_unmap_aliases) from [<804e1920>] (vm_reset_perms mm/vmalloc.c:3343 [inline]) [<804dd9c8>] (_vm_unmap_aliases) from [<804e1920>] (vfree+0x16c/0x210 mm/vmalloc.c:3422) r10:83016070 r9:00000001 r8:00000000 r7:ffffffff r6:00000000 r5:8a014600 r4:00000000 [<804e17b4>] (vfree) from [<805474dc>] (execmem_free+0x30/0x50 mm/execmem.c:399) r9:83018205 r8:85443000 r7:00000000 r6:83018200 r5:00001000 r4:7f230000 [<805474ac>] (execmem_free) from [<803c5c60>] (bpf_jit_free_exec+0x10/0x14 kernel/bpf/core.c:1077) r5:00001000 r4:e0381000 [<803c5c50>] (bpf_jit_free_exec) from [<803c6040>] (bpf_jit_binary_free kernel/bpf/core.c:1123 [inline]) [<803c5c50>] (bpf_jit_free_exec) from [<803c6040>] (bpf_jit_free+0x68/0xe4 kernel/bpf/core.c:1246) [<803c5fd8>] (bpf_jit_free) from [<803c70bc>] (bpf_prog_free_deferred+0x138/0x150 kernel/bpf/core.c:2891) r5:84fc7f8c r4:855fb400 [<803c6f84>] (bpf_prog_free_deferred) from [<8027e2bc>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3238) r7:ddde2d40 r6:83018200 r5:84fc7f8c r4:855fb400 [<8027e108>] (process_one_work) from [<8027ef04>] (process_scheduled_works kernel/workqueue.c:3321 [inline]) [<8027e108>] (process_one_work) from [<8027ef04>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3402) r10:61c88647 r9:85443000 r8:855fb42c r7:82804d40 r6:ddde2d40 r5:ddde2d60 r4:855fb400 [<8027ed08>] (worker_thread) from [<80285f30>] (kthread+0x12c/0x280 kernel/kthread.c:464) r10:00000000 r9:855fb400 r8:8027ed08 r7:df879e60 r6:8a8bfe00 r5:85443000 r4:00000001 [<80285e04>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfdddfb0 to 0xdfdddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80285e04 r4:86f34b00 NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.16.0-syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: [<80201a00>] (dump_backtrace) from [<80201afc>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000113 r5:60000193 r4:8225b4ec [<80201ae4>] (show_stack) from [<8021fe10>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201ae4>] (show_stack) from [<8021fe10>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<8021fda0>] (dump_stack_lvl) from [<8021fe34>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000001 r4:00000001 [<8021fe1c>] (dump_stack) from [<81a11558>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81a113f8>] (nmi_cpu_backtrace) from [<81a116a4>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000001 r6:8280c690 r5:8281af40 r4:ffffffff [<81a11574>] (nmi_trigger_cpumask_backtrace) from [<802304fc>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:852) r9:8280c80c r8:82ab3564 r7:8281bb28 r6:00007f24 r5:8281b508 r4:84765d0c [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fdd8>] (trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fdd8>] (check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]) [<802304e4>] (arch_trigger_cpumask_backtrace) from [<8037fdd8>] (watchdog+0x4a8/0x74c kernel/hung_task.c:470) [<8037f930>] (watchdog) from [<80285f30>] (kthread+0x12c/0x280 kernel/kthread.c:464) r10:00000000 r9:00000000 r8:8037f930 r7:832a0180 r6:832a0180 r5:832e2400 r4:00000001 [<80285e04>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) 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 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80285e04 r4:8334d340 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 11061 Comm: kworker/u9:4 Not tainted 6.16.0-syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Workqueue: events_unbound nsim_dev_trap_report_work PC is at page_address+0x0/0x108 mm/highmem.c:754 LR is at folio_address include/linux/mm.h:2217 [inline] LR is at slab_address mm/slab.h:196 [inline] LR is at obj_to_index mm/slab.h:353 [inline] LR is at __memcg_slab_free_hook+0xcc/0x168 mm/memcontrol.c:3211 pc : [<804bbbe4>] lr : [<8052bae0>] psr: 200f0113 sp : df801ad8 ip : df801b20 fp : df801b1c r10: ddf7024c r9 : 00000001 r8 : 8a8b3480 r7 : df801b38 r6 : 00000000 r5 : 8a6bb900 r4 : 830adb40 r3 : ffffff3c r2 : fffffffc r1 : 000000c4 r0 : ddf7024c Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 84ce8040 DAC: fffffffd Call trace: frame pointer underflow [<8052ba14>] (__memcg_slab_free_hook) from [<804fdef4>] (memcg_slab_free_hook mm/slub.c:2206 [inline]) [<8052ba14>] (__memcg_slab_free_hook) from [<804fdef4>] (slab_free mm/slub.c:4640 [inline]) [<8052ba14>] (__memcg_slab_free_hook) from [<804fdef4>] (kmem_cache_free+0x310/0x494 mm/slub.c:4745) r10:81e6e7f0 r9:84258000 r8:0017724c r7:81538c40 r6:ddf7024c r5:8a6bb900 r4:830adb40 [<804fdbe4>] (kmem_cache_free) from [<81538c40>] (kfree_skbmem+0x94/0xa8 net/core/skbuff.c:1110) r10:81e6e7f0 r9:8326d9d4 r8:8a632a40 r7:84b533d8 r6:df801c7c r5:816eed88 r4:8a6bb900 [<81538bac>] (kfree_skbmem) from [<81540fb0>] (__kfree_skb net/core/skbuff.c:1167 [inline]) [<81538bac>] (kfree_skbmem) from [<81540fb0>] (consume_skb net/core/skbuff.c:1398 [inline]) [<81538bac>] (kfree_skbmem) from [<81540fb0>] (consume_skb+0x84/0x130 net/core/skbuff.c:1392) [<81540f2c>] (consume_skb) from [<816eed88>] (nft_synproxy_eval_v4 net/netfilter/nft_synproxy.c:60 [inline]) [<81540f2c>] (consume_skb) from [<816eed88>] (nft_synproxy_do_eval+0x264/0x2b4 net/netfilter/nft_synproxy.c:141) r7:84b533d8 r6:df801c7c r5:84ab3400 r4:8a6bb900 [<816eeb24>] (nft_synproxy_do_eval) from [<816eee04>] (nft_synproxy_eval+0x14/0x18 net/netfilter/nft_synproxy.c:247) r9:df801d14 r8:81e6e978 r7:81e6e6dc r6:81e6e698 r5:84b533e0 r4:84b533d0 [<816eedf0>] (nft_synproxy_eval) from [<816b7328>] (expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]) [<816eedf0>] (nft_synproxy_eval) from [<816b7328>] (nft_do_chain+0x12c/0x570 net/netfilter/nf_tables_core.c:285) [<816b71fc>] (nft_do_chain) from [<816d0580>] (nft_do_chain_inet+0xac/0x120 net/netfilter/nft_chain_filter.c:161) r10:dddcfe88 r9:848c44a0 r8:df801d6c r7:8a6bb900 r6:848c4480 r5:00000004 r4:84a6dd00 [<816d04d4>] (nft_do_chain_inet) from [<8167e97c>] (nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]) [<816d04d4>] (nft_do_chain_inet) from [<8167e97c>] (nf_hook_slow+0x40/0x104 net/netfilter/core.c:623) r4:00000001 [<8167e93c>] (nf_hook_slow) from [<81710f40>] (nf_hook include/linux/netfilter.h:272 [inline]) [<8167e93c>] (nf_hook_slow) from [<81710f40>] (NF_HOOK include/linux/netfilter.h:315 [inline]) [<8167e93c>] (nf_hook_slow) from [<81710f40>] (ip_local_deliver+0xf0/0x110 net/ipv4/ip_input.c:254) r9:00000040 r8:00000037 r7:00000000 r6:84ab3400 r5:8556d000 r4:8a6bb900 [<81710e50>] (ip_local_deliver) from [<81710084>] (dst_input include/net/dst.h:469 [inline]) [<81710e50>] (ip_local_deliver) from [<81710084>] (ip_rcv_finish+0x98/0xb0 net/ipv4/ip_input.c:448) r6:8556d000 r5:84ab3400 r4:8a6bb900 [<8170ffec>] (ip_rcv_finish) from [<81711034>] (NF_HOOK include/linux/netfilter.h:317 [inline]) [<8170ffec>] (ip_rcv_finish) from [<81711034>] (NF_HOOK include/linux/netfilter.h:311 [inline]) [<8170ffec>] (ip_rcv_finish) from [<81711034>] (ip_rcv+0xd4/0xe0 net/ipv4/ip_input.c:568) r7:00000000 r6:84ab3400 r5:8a6bb900 r4:00000001 [<81710f60>] (ip_rcv) from [<815631ec>] (__netif_receive_skb_one_core+0x5c/0x80 net/core/dev.c:5977) r6:00000000 r5:81710f60 r4:8556d000 [<81563190>] (__netif_receive_skb_one_core) from [<81563258>] (__netif_receive_skb+0x18/0x5c net/core/dev.c:6090) r5:dddcff70 r4:8a6bb900 [<81563240>] (__netif_receive_skb) from [<81563560>] (process_backlog+0xa0/0x17c net/core/dev.c:6442) r5:dddcff70 r4:8a6bb900 [<815634c0>] (process_backlog) from [<8156454c>] (__napi_poll+0x34/0x240 net/core/dev.c:7414) r10:dddcfe80 r9:00000000 r8:df801ed8 r7:df801ed3 r6:00000040 r5:dddcff70 r4:00000001 [<81564518>] (__napi_poll) from [<81564e38>] (napi_poll net/core/dev.c:7478 [inline]) [<81564518>] (__napi_poll) from [<81564e38>] (net_rx_action+0x3a0/0x430 net/core/dev.c:7605) r9:00000000 r8:df801ed8 r7:0000012c r6:00000000 r5:5b70d000 r4:dddcff70 [<81564a98>] (net_rx_action) from [<8026199c>] (handle_softirqs+0x140/0x458 kernel/softirq.c:579) r10:84258000 r9:82804d40 r8:00000102 r7:00000003 r6:00000208 r5:00000004 r4:8280408c [<8026185c>] (handle_softirqs) from [<802012d0>] (__do_softirq+0x14/0x18 kernel/softirq.c:613) r10:83cd7100 r9:855b4400 r8:83cd71fc r7:00000068 r6:81d94708 r5:00000002 r4:600f0113 [<802012bc>] (__do_softirq) from [<8022858c>] (____do_softirq+0x10/0x14 arch/arm/kernel/irq.c:77) [<8022857c>] (____do_softirq) from [<819f3780>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40) [<819f3764>] (call_with_stack) from [<802285c8>] (do_softirq_own_stack+0x38/0x3c arch/arm/kernel/irq.c:82) [<80228590>] (do_softirq_own_stack) from [<80261fa4>] (do_softirq kernel/softirq.c:480 [inline]) [<80228590>] (do_softirq_own_stack) from [<80261fa4>] (do_softirq+0x5c/0x64 kernel/softirq.c:467) [<80261f48>] (do_softirq) from [<80262078>] (__local_bh_enable_ip+0xcc/0xd0 kernel/softirq.c:407) r5:00000002 r4:84258000 [<80261fac>] (__local_bh_enable_ip) from [<81a309e8>] (__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]) [<80261fac>] (__local_bh_enable_ip) from [<81a309e8>] (_raw_spin_unlock_bh+0x34/0x38 kernel/locking/spinlock.c:210) r5:855b43e8 r4:8a6bbe40 [<81a309b4>] (_raw_spin_unlock_bh) from [<80e33a44>] (spin_unlock_bh include/linux/spinlock.h:396 [inline]) [<81a309b4>] (_raw_spin_unlock_bh) from [<80e33a44>] (nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]) [<81a309b4>] (_raw_spin_unlock_bh) from [<80e33a44>] (nsim_dev_trap_report_work+0x2e4/0x410 drivers/net/netdevsim/dev.c:851) [<80e33760>] (nsim_dev_trap_report_work) from [<8027e2bc>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3238) r10:8300e470 r9:83260205 r8:84258000 r7:8300fc00 r6:83260200 r5:855b4400 r4:84998200 [<8027e108>] (process_one_work) from [<8027ef04>] (process_scheduled_works kernel/workqueue.c:3321 [inline]) [<8027e108>] (process_one_work) from [<8027ef04>] (worker_thread+0x1fc/0x3d8 kernel/workqueue.c:3402) r10:61c88647 r9:84258000 r8:8499822c r7:82804d40 r6:8300fc00 r5:8300fc20 r4:84998200 [<8027ed08>] (worker_thread) from [<80285f30>] (kthread+0x12c/0x280 kernel/kthread.c:464) r10:00000000 r9:84998200 r8:8027ed08 r7:df8e9e60 r6:84998880 r5:84258000 r4:00000001 [<80285e04>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xea8b1fb0 to 0xea8b1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80285e04 r4:8b7e6900