INFO: task kworker/0:4:5065 blocked for more than 143 seconds. Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:4 state:D stack:23544 pid:5065 ppid:2 flags:0x00004000 Workqueue: events_long flush_old_commits Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0x173b/0x4630 kernel/sched/core.c:6625 schedule+0xc3/0x180 kernel/sched/core.c:6701 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_sync_fs fs/reiserfs/super.c:76 [inline] flush_old_commits+0x1e3/0x2f0 fs/reiserfs/super.c:111 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x2b2/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 INFO: task syz-executor.4:12887 blocked for more than 143 seconds. Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27560 pid:12887 ppid:5008 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0x173b/0x4630 kernel/sched/core.c:6625 schedule+0xc3/0x180 kernel/sched/core.c:6701 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760 __mutex_lock_common+0xe33/0x2530 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799 reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 reiserfs_lookup+0x162/0x580 fs/reiserfs/namei.c:364 __lookup_hash+0x117/0x240 fs/namei.c:1602 filename_create+0x291/0x530 fs/namei.c:3809 do_mkdirat+0xb7/0x520 fs/namei.c:4053 __do_sys_mkdirat fs/namei.c:4076 [inline] __se_sys_mkdirat fs/namei.c:4074 [inline] __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4074 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f834588b187 RSP: 002b:00007f83465a7f88 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f834588b187 RDX: 00000000000001ff RSI: 0000000020000040 RDI: 00000000ffffff9c RBP: 0000000020000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000020000180 R11: 0000000000000246 R12: 0000000020000180 R13: 0000000020000040 R14: 00007f83465a7fe0 R15: 0000000020001c00 INFO: task syz-executor.4:12888 blocked for more than 144 seconds. Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:26968 pid:12888 ppid:5008 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5307 [inline] __schedule+0x173b/0x4630 kernel/sched/core.c:6625 schedule+0xc3/0x180 kernel/sched/core.c:6701 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6760 rwsem_down_write_slowpath+0xedd/0x13a0 kernel/locking/rwsem.c:1178 __down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306 inode_lock include/linux/fs.h:761 [inline] process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243 ima_file_check+0xf1/0x170 security/integrity/ima/ima_main.c:539 do_open fs/namei.c:3562 [inline] path_openat+0x280a/0x3170 fs/namei.c:3715 do_filp_open+0x234/0x490 fs/namei.c:3742 do_sys_openat2+0x13f/0x500 fs/open.c:1356 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x247/0x290 fs/open.c:1383 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f834588c169 RSP: 002b:00007f8346587168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f83459ac120 RCX: 00007f834588c169 RDX: 0000000000080201 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f83458e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000113 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdedc0fa8f R14: 00007f8346587300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8cf26030 ( rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by rcu_tasks_trace/14: #0: ffffffff8cf263f0 ( rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518 1 lock held by khungtaskd/28: #0: ffffffff8cf25e60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4730: #0: ffff88814a9d6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177 4 locks held by kworker/0:4/5065: #0: ffff888012471538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x77e/0x10e0 kernel/workqueue.c:2363 #1: ffffc9000477fd20 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7c8/0x10e0 kernel/workqueue.c:2365 #2: ffff88807800e0e0 (&type->s_umount_key#70){++++}-{3:3}, at: flush_old_commits+0xcb/0x2f0 fs/reiserfs/super.c:97 #3: ffff88807b0c8090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 7 locks held by syz-executor.4/12875: 3 locks held by syz-executor.4/12887: #0: ffff88807800e460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394 #1: ffff888034df82e0 (&type->i_mutex_dir_key#13/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:796 [inline] #1: ffff888034df82e0 (&type->i_mutex_dir_key#13/1){+.+.}-{3:3}, at: filename_create+0x25a/0x530 fs/namei.c:3808 #2: ffff88807b0c8090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 2 locks held by syz-executor.4/12888: #0: ffff88807800e460 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:394 #1: ffff888034dfc520 (&sb->s_type->i_mutex_key#29 ){+.+.}-{3:3} , at: inode_lock include/linux/fs.h:761 [inline] , at: process_measurement+0x435/0x1ce0 security/integrity/ima/ima_main.c:243 2 locks held by syz-executor.3/15191: #0: ffff88807800e0e0 (&type->s_umount_key#70){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743 #1: ffff88807b0c8090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 2 locks held by syz-executor.3/15248: #0: ffff88807800e0e0 (&type->s_umount_key#70){++++}-{3:3}, at: iterate_supers+0xb0/0x1e0 fs/super.c:743 #1: ffff88807b0c8090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x7a/0xd0 fs/reiserfs/lock.c:27 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xec2/0xf00 kernel/hung_task.c:379 kthread+0x2b2/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 5642 Comm: kworker/u4:9 Not tainted 6.3.0-syzkaller-07919-g6e98b09da931 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Workqueue: phy7 ieee80211_iface_work RIP: 0010:__do_kmalloc_node mm/slab_common.c:962 [inline] RIP: 0010:__kmalloc+0x88/0x230 mm/slab_common.c:979 Code: 24 04 ff c0 41 f7 c5 11 00 40 00 0f 85 f0 00 00 00 31 db 89 c5 83 f8 0e 0f 83 14 01 00 00 48 6b c3 70 48 8b ac e8 a0 92 a2 8c <48> 83 fd 11 0f 82 ef 00 00 00 48 89 ef 44 89 ee ba ff ff ff ff 4c RSP: 0018:ffffc9000b24f3d8 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88803550d940 RDX: 0000000000000000 RSI: 0000000000000920 RDI: 0000000000000048 RBP: ffff888012441780 R08: ffffffff8a04d81b R09: ffffffff8a01541d R10: 0000000000000006 R11: ffff88803550d940 R12: 0000000000000048 R13: 0000000000000920 R14: ffffffff8a04dad6 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fb75a3d040 CR3: 000000000cd30000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kmalloc include/linux/slab.h:564 [inline] kzalloc include/linux/slab.h:681 [inline] cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2450 [inline] cfg80211_inform_bss_frame_data+0x6a6/0x22c0 net/wireless/scan.c:2511 ieee80211_bss_info_update+0x801/0xf00 net/mac80211/scan.c:190 ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline] ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638 ieee80211_iface_process_skb net/mac80211/iface.c:1594 [inline] ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537 kthread+0x2b2/0x350 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308