INFO: task syz.3.62:6892 blocked for more than 144 seconds. Not tainted 6.15.0-rc2-syzkaller-gc72692105976 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.62 state:D stack:0 pid:6892 tgid:6871 ppid:6488 task_flags:0x400040 flags:0x00000001 Call trace: __switch_to+0x404/0x778 arch/arm64/kernel/process.c:701 (T) context_switch kernel/sched/core.c:5382 [inline] __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767 __schedule_loop kernel/sched/core.c:6845 [inline] schedule+0xb4/0x230 kernel/sched/core.c:6860 __lock_sock+0x10c/0x25c net/core/sock.c:3139 lock_sock_nested+0xa0/0x118 net/core/sock.c:3707 lock_sock include/net/sock.h:1651 [inline] af_alg_sendmsg+0x3a4/0x1f58 crypto/af_alg.c:972 skcipher_sendmsg+0xd4/0xf8 crypto/algif_skcipher.c:47 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg net/socket.c:727 [inline] ____sys_sendmsg+0x490/0x7b8 net/socket.c:2566 ___sys_sendmsg+0x204/0x278 net/socket.c:2620 __sys_sendmmsg+0x1f4/0x548 net/socket.c:2709 __do_sys_sendmmsg net/socket.c:2736 [inline] __se_sys_sendmmsg net/socket.c:2733 [inline] __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2733 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Showing all locks held in the system: 1 lock held by kthreadd/2: 1 lock held by kworker/R-kvfre/6: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 4 locks held by kworker/0:0/9: #0: ffff0000c0028d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000975e7bc0 (reg_work){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff800092445fe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 #3: ffff0000da5f0768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline] #3: ffff0000da5f0768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: reg_process_self_managed_hints+0xc4/0x1c0 net/wireless/reg.c:3209 3 locks held by kworker/u8:0/12: 3 locks held by kworker/u8:1/13: 1 lock held by kworker/R-mm_pe/14: 2 locks held by kworker/1:0/24: 1 lock held by khungtaskd/32: #0: ffff80008f4c7c60 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330 4 locks held by kworker/u8:2/44: 3 locks held by kworker/u8:3/45: 1 lock held by pr/ttyAMA0/46: 3 locks held by kworker/u8:4/253: 3 locks held by kworker/u8:5/265: 3 locks held by kworker/u8:6/290: 3 locks held by kworker/u8:7/701: 3 locks held by kworker/u8:8/2237: 3 locks held by kworker/R-ipv6_/4141: #0: ffff0000d2159148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000a1727ba0 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff800092445fe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 2 locks held by kworker/R-bat_e/4222: 2 locks held by jbd2/nvme0n1p2-/6070: 1 lock held by kworker/R-ext4-/6071: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 2 locks held by syslogd/6090: 3 locks held by udevd/6105: 1 lock held by dhcpcd/6158: 1 lock held by dhcpcd/6159: 2 locks held by getty/6246: #0: ffff0000cca5a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80009b58e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222 4 locks held by syz-executor/6489: 2 locks held by syz-executor/6494: 4 locks held by syz-executor/6497: 1 lock held by kworker/R-wg-cr/6522: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6524: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6525: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6527: 1 lock held by kworker/R-wg-cr/6528: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6530: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6531: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6533: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_detach_from_pool kernel/workqueue.c:2736 [inline] #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: rescuer_thread+0x86c/0xec8 kernel/workqueue.c:3529 1 lock held by kworker/R-wg-cr/6537: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 1 lock held by kworker/R-wg-cr/6538: #0: ffff80008f3702a8 (wq_pool_attach_mutex){+.+.}-{4:4}, at: worker_attach_to_pool+0x40/0x348 kernel/workqueue.c:2678 3 locks held by kworker/u8:9/6586: 3 locks held by kworker/u8:10/6587: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000a37e7bc0 ((crda_timeout).work){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff800092445fe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:11/6588: #0: ffff0000c0031948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x658/0x156c kernel/workqueue.c:3212 #1: ffff8000a37d7bc0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x6ec/0x156c kernel/workqueue.c:3212 #2: ffff800092445fe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80 3 locks held by kworker/u8:12/6589: 3 locks held by udevd/6810: 1 lock held by udevd/6821: #0: ffff0000c154d9d0 (mapping.invalidate_lock#2){.+.+}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:922 [inline] #0: ffff0000c154d9d0 (mapping.invalidate_lock#2){.+.+}-{4:4}, at: filemap_update_page mm/filemap.c:2450 [inline] #0: ffff0000c154d9d0 (mapping.invalidate_lock#2){.+.+}-{4:4}, at: filemap_get_pages+0x594/0x19d0 mm/filemap.c:2612 2 locks held by syz.3.62/6887: 1 lock held by syz.3.62/6892: #0: ffff0000c871c258 (sk_lock-AF_ALG){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1651 [inline] #0: ffff0000c871c258 (sk_lock-AF_ALG){+.+.}-{0:0}, at: af_alg_sendmsg+0x3a4/0x1f58 crypto/af_alg.c:972 1 lock held by syz.0.64/6879: #0: ffff0000db5ea008 (&sb->s_type->i_mutex_key#10){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:867 [inline] #0: ffff0000db5ea008 (&sb->s_type->i_mutex_key#10){+.+.}-{4:4}, at: __sock_release net/socket.c:646 [inline] #0: ffff0000db5ea008 (&sb->s_type->i_mutex_key#10){+.+.}-{4:4}, at: sock_close+0x7c/0x1e4 net/socket.c:1391 2 locks held by kworker/u8:13/6899: 3 locks held by kworker/u8:14/6901: 2 locks held by syz-executor/6902: 1 lock held by kworker/u8:15/6903: =============================================