INFO: task kworker/0:0:21020 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:21020 ppid:2 flags:0x00000000 Workqueue: events rfkill_sync_work Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:00000000 r9:83e4a280 r8:e05b5e14 r7:e05b5db4 r6:00000002 r5:e05b5e18 r4:83e4a280 [<817c221c>] (schedule) from [<817c8cb8>] (schedule_timeout+0xd0/0x108 kernel/time/timer.c:2143) r5:e05b5e18 r4:7fffffff [<817c8be8>] (schedule_timeout) from [<817c2f94>] (do_wait_for_common kernel/sched/completion.c:85 [inline]) [<817c8be8>] (schedule_timeout) from [<817c2f94>] (__wait_for_common+0x9c/0x1e4 kernel/sched/completion.c:106) r6:00000002 r5:e05b5e18 r4:7fffffff [<817c2ef8>] (__wait_for_common) from [<817c30fc>] (wait_for_common kernel/sched/completion.c:117 [inline]) [<817c2ef8>] (__wait_for_common) from [<817c30fc>] (wait_for_completion+0x20/0x24 kernel/sched/completion.c:138) r10:dddd8405 r9:8500fe10 r8:8500fe3c r7:82af7030 r6:8500fe00 r5:e05b5e08 r4:00000001 [<817c30dc>] (wait_for_completion) from [<8025f43c>] (__flush_workqueue+0x118/0x5b4 kernel/workqueue.c:2861) [<8025f324>] (__flush_workqueue) from [<8172fc40>] (nci_close_device+0x84/0x124 net/nfc/nci/core.c:579) r10:dddd8405 r9:83e4a280 r8:00000000 r7:82af7030 r6:82af7018 r5:82af70c4 r4:82af7000 [<8172fbbc>] (nci_close_device) from [<8172fcf4>] (nci_dev_down+0x14/0x18 net/nfc/nci/core.c:639) r7:dddd8400 r6:00000001 r5:84fd445c r4:84fd4400 [<8172fce0>] (nci_dev_down) from [<817241f0>] (nfc_dev_down+0x68/0xc8 net/nfc/core.c:161) [<81724188>] (nfc_dev_down) from [<8172427c>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:dddd8400 r6:00000001 r5:84fd4400 r4:00000001 [<81724250>] (nfc_rfkill_set_block) from [<816e2254>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:345) r5:00000000 r4:84fd4000 [<816e21c4>] (rfkill_set_block) from [<816e2694>] (rfkill_sync_work+0x3c/0x48 net/rfkill/core.c:1042) r7:dddd8400 r6:dddd4c80 r5:84fd427c r4:825cdf44 [<816e2658>] (rfkill_sync_work) from [<802626f4>] (process_one_work+0x20c/0x5b4 kernel/workqueue.c:2289) r5:8536b400 r4:84fd427c [<802624e8>] (process_one_work) from [<80262f04>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2436) r10:dddd4c80 r9:00000008 r8:82404d40 r7:dddd4c9c r6:8536b418 r5:dddd4c80 r4:8536b400 [<80262e98>] (worker_thread) from [<8026a00c>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:eaa25e8c r8:85263000 r7:8536b400 r6:80262e98 r5:83e4a280 r4:84ff8a40 [<80269f20>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148) Exception stack(0xe05b5fb0 to 0xe05b5ff8) 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 r5:80269f20 r4:84ff8a40 INFO: task kworker/u4:4:17886 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:4 state:D stack:0 pid:17886 ppid:2 flags:0x00000000 Workqueue: nfc2_nci_rx_wq nci_rx_work Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:854bc605 r9:8240c5e0 r8:84fd4460 r7:eb671d9c r6:00000002 r5:85277300 r4:85277300 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:85277300 r4:84fd445c [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:854bc605 r9:81a4d2c4 r8:84fd445c r7:00000000 r6:00000000 r5:82af70fc r4:84fd4400 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<817233e0>] (device_lock include/linux/device.h:831 [inline]) [<817c4038>] (mutex_lock) from [<817233e0>] (nfc_targets_found+0x5c/0x12c net/nfc/core.c:778) [<81723384>] (nfc_targets_found) from [<817334a8>] (nci_rf_discover_ntf_packet net/nfc/nci/ntf.c:390 [inline]) [<81723384>] (nfc_targets_found) from [<817334a8>] (nci_ntf_packet+0x940/0xe18 net/nfc/nci/ntf.c:798) r8:00000001 r7:00000000 r6:82af7000 r5:855edd80 r4:00000103 [<81732b68>] (nci_ntf_packet) from [<81730284>] (nci_rx_work+0x70/0xe8 net/nfc/nci/core.c:1517) r10:854bc605 r9:81a4d2c4 r8:81f4c2f8 r7:82af70a4 r6:82af7070 r5:82af7000 r4:855edd80 [<81730214>] (nci_rx_work) from [<802626f4>] (process_one_work+0x20c/0x5b4 kernel/workqueue.c:2289) r9:85277300 r8:00000100 r7:854bc600 r6:8280e800 r5:855f5680 r4:82af7070 [<802624e8>] (process_one_work) from [<80262f04>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2436) r10:8280e800 r9:00000088 r8:82404d40 r7:8280e81c r6:855f5698 r5:8280e800 r4:855f5680 [<80262e98>] (worker_thread) from [<8026a00c>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:eb601e8c r8:854bbac0 r7:855f5680 r6:80262e98 r5:85277300 r4:854bbc40 [<80269f20>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148) Exception stack(0xeb671fb0 to 0xeb671ff8) 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 r5:80269f20 r4:854bbc40 INFO: task kworker/0:1:19047 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:0 pid:19047 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:dddd8405 r9:8240c5e0 r8:825cdf48 r7:ed9b9e84 r6:00000002 r5:85270000 r4:85270000 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:85270000 r4:825cdf44 [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:dddd8405 r9:85270000 r8:00000000 r7:dddd8400 r6:dddd4c80 r5:855f5b80 r4:825cdf44 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<816e1230>] (rfkill_global_led_trigger_worker+0x1c/0xa0 net/rfkill/core.c:181) [<816e1214>] (rfkill_global_led_trigger_worker) from [<802626f4>] (process_one_work+0x20c/0x5b4 kernel/workqueue.c:2289) r5:855f5b80 r4:8271ef5c [<802624e8>] (process_one_work) from [<80262f04>] (worker_thread+0x6c/0x4e0 kernel/workqueue.c:2436) r10:dddd4c80 r9:00000008 r8:82404d40 r7:dddd4c9c r6:855f5b98 r5:dddd4c80 r4:855f5b80 [<80262e98>] (worker_thread) from [<8026a00c>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:e05b5e8c r8:8420b480 r7:855f5b80 r6:80262e98 r5:85270000 r4:8431a080 [<80269f20>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148) Exception stack(0xed9b9fb0 to 0xed9b9ff8) 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 r5:80269f20 r4:8431a080 INFO: task syz-executor.0:19932 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:19932 ppid:2950 flags:0x00000001 Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:8270f280 r9:8240c5e0 r8:84fd4460 r7:eef2dafc r6:00000002 r5:85273980 r4:85273980 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:85273980 r4:84fd445c [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:8270f280 r9:eef2dc54 r8:855f5f80 r7:00000001 r6:84fd445c r5:00000000 r4:84fd4400 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<817247e8>] (device_lock include/linux/device.h:831 [inline]) [<817c4038>] (mutex_lock) from [<817247e8>] (nfc_deactivate_target+0x2c/0xe0 net/nfc/core.c:449) [<817247bc>] (nfc_deactivate_target) from [<8172516c>] (nfc_genl_activate_target+0x68/0x9c net/nfc/netlink.c:899) r7:00000000 r6:00000001 r5:84fd4400 r4:00000000 [<81725104>] (nfc_genl_activate_target) from [<8140a9b8>] (genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline]) [<81725104>] (nfc_genl_activate_target) from [<8140a9b8>] (genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline]) [<81725104>] (nfc_genl_activate_target) from [<8140a9b8>] (genl_rcv_msg+0x27c/0x3e0 net/netlink/genetlink.c:1065) r7:00000000 r6:855ed900 r5:81f5c07c r4:8500ea14 [<8140a73c>] (genl_rcv_msg) from [<81409898>] (netlink_rcv_skb+0xc4/0x128 net/netlink/af_netlink.c:2574) r10:84fd7174 r9:00000000 r8:82410bd8 r7:0000002c r6:8500ea00 r5:8140a73c r4:855ed900 [<814097d4>] (netlink_rcv_skb) from [<8140a380>] (genl_rcv+0x2c/0x3c net/netlink/genetlink.c:1076) r7:855ed900 r6:84fd7000 r5:825c2584 r4:855ed900 [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]) [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast+0x254/0x388 net/netlink/af_netlink.c:1365) r5:82934464 r4:82934400 [<81408ad8>] (netlink_unicast) from [<81409074>] (netlink_sendmsg+0x214/0x4a8 net/netlink/af_netlink.c:1942) r10:00000000 r9:00000000 r8:84fd7000 r7:0000002c r6:855ed900 r5:eef2df38 r4:0000002c [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg_nosec net/socket.c:714 [inline]) [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg+0x3c/0x4c net/socket.c:734) r10:eef2dddc r9:00000000 r8:00000000 r7:00000000 r6:85b9aa00 r5:85b9aa00 r4:eef2df38 [<812df850>] (sock_sendmsg) from [<812e069c>] (____sys_sendmsg+0x20c/0x2a4 net/socket.c:2476) r5:00000000 r4:eef2df38 [<812e0490>] (____sys_sendmsg) from [<812e2314>] (___sys_sendmsg+0x74/0xac net/socket.c:2530) r10:00000128 r9:85273980 r8:00000000 r7:00000000 r6:85b9aa00 r5:eef2df38 r4:00000000 [<812e22a0>] (___sys_sendmsg) from [<812e2768>] (__sys_sendmsg net/socket.c:2559 [inline]) [<812e22a0>] (___sys_sendmsg) from [<812e2768>] (__do_sys_sendmsg net/socket.c:2568 [inline]) [<812e22a0>] (___sys_sendmsg) from [<812e2768>] (sys_sendmsg+0x58/0xa0 net/socket.c:2566) r8:80200288 r7:00000128 r6:00000000 r5:20000780 r4:85b9aa00 [<812e2710>] (sys_sendmsg) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xeef2dfa8 to 0xeef2dff0) dfa0: 00000000 00000000 00000005 20000780 00000000 00000000 dfc0: 00000000 00000000 0014c2b8 00000128 7ea893d2 76bd26d0 7ea89544 76bd220c dfe0: 76bd2020 76bd2010 00016fec 0004dfa0 r6:0014c2b8 r5:00000000 r4:00000000 INFO: task syz-executor.0:19936 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:0 pid:19936 ppid:2950 flags:0x00000001 Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:83e4a281 r9:8240c5e0 r8:82af70c8 r7:eef35dfc r6:00000002 r5:85274500 r4:85274500 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:85274500 r4:82af70c4 [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:5ac3c35a r9:7efffd08 r8:83a67250 r7:82af7030 r6:82af7018 r5:82af70c4 r4:82af7000 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<8172fbec>] (nci_close_device+0x30/0x124 net/nfc/nci/core.c:561) [<8172fbbc>] (nci_close_device) from [<817303d4>] (nci_unregister_device+0x24/0x98 net/nfc/nci/core.c:1292) r7:82af7000 r6:834e94c8 r5:000e001b r4:8431aac0 [<817303b0>] (nci_unregister_device) from [<80a42f44>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:163) r9:7efffd08 r8:83a67250 r7:839f8450 r6:834e94c8 r5:000e001b r4:8431aac0 [<80a42f2c>] (virtual_ncidev_close) from [<804b3238>] (__fput+0x84/0x264 fs/file_table.c:320) r5:000e001b r4:85592cc0 [<804b31b4>] (__fput) from [<804b3494>] (____fput+0x10/0x14 fs/file_table.c:348) r9:7efffd08 r8:85274d34 r7:826485e4 r6:85274500 r5:85274d04 r4:00000000 [<804b3484>] (____fput) from [<80266680>] (task_work_run+0x8c/0xb4 kernel/task_work.c:179) [<802665f4>] (task_work_run) from [<8020c078>] (resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]) [<802665f4>] (task_work_run) from [<8020c078>] (do_work_pending+0x424/0x528 arch/arm/kernel/signal.c:630) r9:7efffd08 r8:80200288 r7:fffffe30 r6:80200288 r5:eef35fb0 r4:85274500 [<8020bc54>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20) Exception stack(0xeef35fb0 to 0xeef35ff8) 5fa0: fffffff2 20000840 00000064 00000000 5fc0: 00000000 00000000 0014c348 00000003 7ea893d2 76bb16d0 7ea89544 76bb120c 5fe0: 76bb1020 76bb1010 00016fec 0004dfa0 60000010 00000003 r10:00000003 r9:85274500 r8:80200288 r7:00000003 r6:0014c348 r5:00000000 r4:00000000 INFO: task syz-executor.1:19949 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:19949 ppid:2949 flags:0x00000001 Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:8194afa4 r9:8240c5e0 r8:825cdf48 r7:df9a5bfc r6:00000002 r5:83c70b80 r4:83c70b80 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:83c70b80 r4:825cdf44 [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:8194afa4 r9:839f8450 r8:8254a418 r7:8254a42c r6:852dd418 r5:825cdf44 r4:852dc400 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<816e23d0>] (rfkill_register+0x28/0x2b0 net/rfkill/core.c:1057) [<816e23a8>] (rfkill_register) from [<81723858>] (nfc_register_device+0xa8/0x170 net/nfc/core.c:1132) r10:8194afa4 r9:839f8450 r8:8254a418 r7:8254a42c r6:852dd418 r5:852dd45c r4:852dd400 [<817237b0>] (nfc_register_device) from [<81730150>] (nci_register_device+0x22c/0x294 net/nfc/nci/core.c:1257) r6:00000077 r5:00000000 r4:84ca6000 [<8172ff24>] (nci_register_device) from [<80a43380>] (virtual_ncidev_open+0x98/0xdc drivers/nfc/virtual_ncidev.c:148) r5:8510c300 r4:85332580 [<80a432e8>] (virtual_ncidev_open) from [<80947c58>] (misc_open+0x134/0x168 drivers/char/misc.c:165) r5:8510c300 r4:82551c6c [<80947b24>] (misc_open) from [<804b6eb0>] (chrdev_open+0xd0/0x244 fs/char_dev.c:414) r10:8510c300 r9:df9a5e48 r8:8510c300 r7:804b6de0 r6:81927e30 r5:839f8450 r4:82ac24c0 r3:80947b24 [<804b6de0>] (chrdev_open) from [<804ac9c0>] (do_dentry_open+0x158/0x48c fs/open.c:882) r10:8510c300 r9:df9a5e48 r8:8510c308 r7:804b6de0 r6:00000000 r5:839f8450 r4:8510c300 [<804ac868>] (do_dentry_open) from [<804ae8ac>] (vfs_open+0x34/0x38 fs/open.c:1013) r9:df9a5e48 r8:00000000 r7:00000000 r6:df9a5f20 r5:824250f8 r4:00000000 [<804ae878>] (vfs_open) from [<804c3308>] (do_open fs/namei.c:3557 [inline]) [<804ae878>] (vfs_open) from [<804c3308>] (path_openat+0x528/0x1058 fs/namei.c:3714) [<804c2de0>] (path_openat) from [<804c58b0>] (do_filp_open+0x84/0x124 fs/namei.c:3741) r10:00000142 r9:83c70b80 r8:df9a5e48 r7:00000001 r6:83c70b80 r5:df9a5f20 r4:df9a5f58 [<804c582c>] (do_filp_open) from [<804aeb9c>] (do_sys_openat2+0xa8/0x16c fs/open.c:1310) r8:80200288 r7:ffffff9c r6:00000003 r5:8401c000 r4:df9a5f58 [<804aeaf4>] (do_sys_openat2) from [<804af038>] (do_sys_open fs/open.c:1326 [inline]) [<804aeaf4>] (do_sys_openat2) from [<804af038>] (__do_sys_openat fs/open.c:1342 [inline]) [<804aeaf4>] (do_sys_openat2) from [<804af038>] (sys_openat+0xa4/0xcc fs/open.c:1337) r7:00000142 r6:0014c34c r5:20000080 r4:ffffff9c [<804aef94>] (sys_openat) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xdf9a5fa8 to 0xdf9a5ff0) 5fa0: 00000000 00000000 ffffff9c 20000080 00000002 00000000 5fc0: 00000000 00000000 0014c34c 00000142 7e9e23d2 76af66d0 7e9e2544 76af620c 5fe0: 76af6020 76af6010 00016fec 0004dfa0 r5:00000000 r4:00000000 INFO: task syz-executor.1:19953 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:19953 ppid:2949 flags:0x00000001 Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:84fd5974 r9:8240c5e0 r8:825c2574 r7:df9ddc0c r6:00000002 r5:83db2280 r4:83db2280 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:83db2280 r4:825c2570 [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:84fd5974 r9:df9ddd1c r8:82410bd8 r7:0000001c r6:855ed600 r5:81f5bacc r4:8500f200 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<8140a9f8>] (genl_lock net/netlink/genetlink.c:33 [inline]) [<817c4038>] (mutex_lock) from [<8140a9f8>] (genl_rcv_msg+0x2bc/0x3e0 net/netlink/genetlink.c:1063) [<8140a73c>] (genl_rcv_msg) from [<81409898>] (netlink_rcv_skb+0xc4/0x128 net/netlink/af_netlink.c:2574) r10:84fd5974 r9:00000000 r8:82410bd8 r7:0000001c r6:8500f200 r5:8140a73c r4:855ed600 [<814097d4>] (netlink_rcv_skb) from [<8140a380>] (genl_rcv+0x2c/0x3c net/netlink/genetlink.c:1076) r7:855ed600 r6:84fd5800 r5:825c2584 r4:855ed600 [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]) [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast+0x254/0x388 net/netlink/af_netlink.c:1365) r5:82934464 r4:82934400 [<81408ad8>] (netlink_unicast) from [<81409074>] (netlink_sendmsg+0x214/0x4a8 net/netlink/af_netlink.c:1942) r10:00000000 r9:00000000 r8:84fd5800 r7:0000001c r6:855ed600 r5:df9ddea0 r4:0000001c [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg_nosec net/socket.c:714 [inline]) [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg+0x3c/0x4c net/socket.c:734) r10:00000122 r9:83db2280 r8:80200288 r7:00000000 r6:76ad3f7c r5:85b9a280 r4:df9ddea0 [<812df850>] (sock_sendmsg) from [<812e19f4>] (__sys_sendto+0xd0/0x11c net/socket.c:2117) r5:85b9a280 r4:00000000 [<812e1924>] (__sys_sendto) from [<812e1a5c>] (__do_sys_sendto net/socket.c:2129 [inline]) [<812e1924>] (__sys_sendto) from [<812e1a5c>] (sys_sendto+0x1c/0x24 net/socket.c:2125) r7:00000122 r6:76ad5b90 r5:0000000c r4:76ad3f7c [<812e1a40>] (sys_sendto) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xdf9ddfa8 to 0xdf9ddff0) dfa0: 76ad3f7c 0000000c 00000006 76ad4010 0000001c 00000000 dfc0: 76ad3f7c 0000000c 76ad5b90 00000122 76ad4010 00000000 76ad4010 76ad520c dfe0: 00000000 76ad3f50 0002a430 0002aa64 INFO: task syz-executor.1:19954 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:19954 ppid:2949 flags:0x00000001 Backtrace: [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:84fd5974 r9:8240c5e0 r8:825c2574 r7:df9e1c0c r6:00000002 r5:83db1700 r4:83db1700 [<817c221c>] (schedule) from [<817c2808>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6741) r5:83db1700 r4:825c2570 [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock_common kernel/locking/mutex.c:679 [inline]) [<817c27f0>] (schedule_preempt_disabled) from [<817c37dc>] (__mutex_lock.constprop.0+0x300/0xa84 kernel/locking/mutex.c:747) [<817c34dc>] (__mutex_lock.constprop.0) from [<817c4034>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1035) r10:84fd5974 r9:df9e1d1c r8:82410bd8 r7:00000028 r6:8423ad80 r5:81f5bacc r4:8296aa00 [<817c4020>] (__mutex_lock_slowpath) from [<817c4074>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<817c4038>] (mutex_lock) from [<8140a9f8>] (genl_lock net/netlink/genetlink.c:33 [inline]) [<817c4038>] (mutex_lock) from [<8140a9f8>] (genl_rcv_msg+0x2bc/0x3e0 net/netlink/genetlink.c:1063) [<8140a73c>] (genl_rcv_msg) from [<81409898>] (netlink_rcv_skb+0xc4/0x128 net/netlink/af_netlink.c:2574) r10:84fd5974 r9:00000000 r8:82410bd8 r7:00000028 r6:8296aa00 r5:8140a73c r4:8423ad80 [<814097d4>] (netlink_rcv_skb) from [<8140a380>] (genl_rcv+0x2c/0x3c net/netlink/genetlink.c:1076) r7:8423ad80 r6:84fd5800 r5:825c2584 r4:8423ad80 [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline]) [<8140a354>] (genl_rcv) from [<81408d2c>] (netlink_unicast+0x254/0x388 net/netlink/af_netlink.c:1365) r5:82934464 r4:82934400 [<81408ad8>] (netlink_unicast) from [<81409074>] (netlink_sendmsg+0x214/0x4a8 net/netlink/af_netlink.c:1942) r10:00000000 r9:00000000 r8:84fd5800 r7:00000028 r6:8423ad80 r5:df9e1ea0 r4:00000028 [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg_nosec net/socket.c:714 [inline]) [<81408e60>] (netlink_sendmsg) from [<812df88c>] (sock_sendmsg+0x3c/0x4c net/socket.c:734) r10:00000122 r9:83db1700 r8:80200288 r7:00000000 r6:76ab2f7c r5:85b9a280 r4:df9e1ea0 [<812df850>] (sock_sendmsg) from [<812e19f4>] (__sys_sendto+0xd0/0x11c net/socket.c:2117) r5:85b9a280 r4:00000000 [<812e1924>] (__sys_sendto) from [<812e1a5c>] (__do_sys_sendto net/socket.c:2129 [inline]) [<812e1924>] (__sys_sendto) from [<812e1a5c>] (sys_sendto+0x1c/0x24 net/socket.c:2125) r7:00000122 r6:76ab4b90 r5:0000000c r4:76ab2f7c [<812e1a40>] (sys_sendto) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xdf9e1fa8 to 0xdf9e1ff0) 1fa0: 76ab2f7c 0000000c 00000006 76ab3010 00000028 00000000 1fc0: 76ab2f7c 0000000c 76ab4b90 00000122 76ab3010 00000000 76ab3010 76ab420c 1fe0: 00000000 76ab2f50 0002a430 0002aa64 NMI backtrace for cpu 1 CPU: 1 PID: 26 Comm: khungtaskd Not tainted 6.2.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<817a2a68>] (dump_backtrace) from [<817a2b5c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:8240c5e0 r5:60000093 r4:81d8a418 [<817a2b44>] (show_stack) from [<817beff0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<817a2b44>] (show_stack) from [<817beff0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<817befa8>] (dump_stack_lvl) from [<817bf014>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000001 r4:00000001 [<817beffc>] (dump_stack) from [<81790450>] (nmi_cpu_backtrace+0x170/0x18c lib/nmi_backtrace.c:111) [<817902e0>] (nmi_cpu_backtrace) from [<817905ec>] (nmi_trigger_cpumask_backtrace+0x180/0x228 lib/nmi_backtrace.c:62) r9:00000002 r8:8020fdd4 r7:00000001 r6:8240c5e0 r5:8240c49c r4:00000000 [<8179046c>] (nmi_trigger_cpumask_backtrace) from [<80211058>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:854) r10:00000064 r9:000d1600 r8:82404d40 r7:00007f50 r6:8268e9a8 r5:8240c5fc r4:82bd7f64 r3:00000001 [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332d6c>] (trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]) [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332d6c>] (check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]) [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332d6c>] (watchdog+0x4a8/0x590 kernel/hung_task.c:377) [<803328c4>] (watchdog) from [<8026a00c>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:df819e4c r8:82ab39c0 r7:00000000 r6:803328c4 r5:828fae00 r4:82ab3900 [<80269f20>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148) Exception stack(0xdf8c9fb0 to 0xdf8c9ff8) 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 r5:80269f20 r4:82ab3900 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 2730 Comm: syslogd Not tainted 6.2.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express PC is at kmap_local_sched_in kernel/sched/core.c:5078 [inline] PC is at finish_task_switch+0x8c/0x26c kernel/sched/core.c:5180 LR is at __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] LR is at _raw_spin_unlock+0x2c/0x50 kernel/locking/spinlock.c:186 pc : [<80275e74>] lr : [<817ca170>] psr: 200e0013 sp : ec419c70 ip : ec419c60 fp : ec419cb4 r10: 00000001 r9 : 83c70000 r8 : 00000000 r7 : 82b9f400 r6 : 00000000 r5 : dddd4fc0 r4 : 00000000 r3 : 83c70000 r2 : 00000001 r1 : 81d8a418 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5387d Table: 841b7180 DAC: fffffffd Backtrace: [<80275de8>] (finish_task_switch) from [<817c1ab0>] (context_switch kernel/sched/core.c:5296 [inline]) [<80275de8>] (finish_task_switch) from [<817c1ab0>] (__schedule+0x360/0xacc kernel/sched/core.c:6606) r10:82b9f648 r9:00000000 r8:82b9f400 r7:82b9f400 r6:83c70000 r5:dddd4fc0 r4:83288b80 [<817c1750>] (__schedule) from [<817c2278>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:83c70000 r9:8403b6a8 r8:ec419df0 r7:ec419df8 r6:00000000 r5:8403b6a8 r4:83c70000 [<817c221c>] (schedule) from [<817c8cb8>] (schedule_timeout+0xd0/0x108 kernel/time/timer.c:2143) r5:8403b6a8 r4:7fffffff [<817c8be8>] (schedule_timeout) from [<812f8658>] (__skb_wait_for_more_packets+0x140/0x180 net/core/datagram.c:120) r6:00000000 r5:8403b6a8 r4:8403b600 [<812f8518>] (__skb_wait_for_more_packets) from [<815912b0>] (__unix_dgram_recvmsg+0xa4/0x3b4 net/unix/af_unix.c:2458) r10:00000000 r9:8403b6a8 r8:ec419df8 r7:00000000 r6:8403b834 r5:8403b600 r4:ec419ef0 [<8159120c>] (__unix_dgram_recvmsg) from [<81591604>] (unix_dgram_recvmsg+0x44/0x4c net/unix/af_unix.c:2542) r10:00000000 r9:83c70000 r8:01e7b1b8 r7:00000000 r6:82d14280 r5:815915c0 r4:ec419ef0 [<815915c0>] (unix_dgram_recvmsg) from [<812dfcb8>] (sock_recvmsg_nosec net/socket.c:995 [inline]) [<815915c0>] (unix_dgram_recvmsg) from [<812dfcb8>] (sock_recvmsg net/socket.c:1013 [inline]) [<815915c0>] (unix_dgram_recvmsg) from [<812dfcb8>] (sock_recvmsg net/socket.c:1009 [inline]) [<815915c0>] (unix_dgram_recvmsg) from [<812dfcb8>] (sock_read_iter+0xfc/0x12c net/socket.c:1086) r4:ec419ef0 [<812dfbbc>] (sock_read_iter) from [<804b1380>] (call_read_iter include/linux/fs.h:2183 [inline]) [<812dfbbc>] (sock_read_iter) from [<804b1380>] (new_sync_read fs/read_write.c:389 [inline]) [<812dfbbc>] (sock_read_iter) from [<804b1380>] (vfs_read+0x268/0x294 fs/read_write.c:470) r7:00000000 r6:000000ff r5:83a5cf00 r4:00000000 [<804b1118>] (vfs_read) from [<804b1ce8>] (ksys_read+0xb4/0xec fs/read_write.c:613) r10:00000003 r9:83c70000 r8:80200288 r7:000000ff r6:01e7b1b8 r5:83a5cf00 r4:83a5cf00 [<804b1c34>] (ksys_read) from [<804b1d30>] (__do_sys_read fs/read_write.c:623 [inline]) [<804b1c34>] (ksys_read) from [<804b1d30>] (sys_read+0x10/0x14 fs/read_write.c:621) r7:00000003 r6:76fae080 r5:01e7b190 r4:fffffc00 [<804b1d20>] (sys_read) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec419fa8 to 0xec419ff0) 9fa0: fffffc00 01e7b190 00000000 01e7b1b8 000000ff 00000000 9fc0: fffffc00 01e7b190 76fae080 00000003 00000000 000d6c90 000d6c90 00000000 9fe0: 000d609c 7e96fc88 000579b8 76ed26f8