INFO: task syz-executor.5:21595 blocked for more than 143 seconds. Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:26320 pid:21595 tgid:21432 ppid:5086 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0x177f/0x4960 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0x149/0x260 kernel/sched/core.c:6817 io_schedule+0x8c/0x100 kernel/sched/core.c:9023 bit_wait_io+0x12/0xc0 kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0xd1/0x530 kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0x1d4/0x250 kernel/sched/wait_bit.c:117 lock_buffer include/linux/buffer_head.h:401 [inline] ext4_quota_write+0x37c/0x580 fs/ext4/super.c:7240 qtree_write_dquot+0x243/0x530 fs/quota/quota_tree.c:431 v2_write_dquot+0x120/0x190 fs/quota/quota_v2.c:358 dquot_commit+0x3c4/0x520 fs/quota/dquot.c:512 ext4_write_dquot+0x1f2/0x2c0 fs/ext4/super.c:6866 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty fs/quota/dquot.c:410 [inline] dquot_alloc_inode+0x69f/0xb70 fs/quota/dquot.c:1780 ext4_xattr_inode_alloc_quota fs/ext4/xattr.c:932 [inline] ext4_xattr_set_entry+0xaf3/0x3fc0 fs/ext4/xattr.c:1715 ext4_xattr_block_set+0x6a2/0x35e0 fs/ext4/xattr.c:1970 ext4_xattr_set_handle+0xcdf/0x1570 fs/ext4/xattr.c:2456 ext4_xattr_set+0x241/0x3d0 fs/ext4/xattr.c:2558 __vfs_setxattr+0x460/0x4a0 fs/xattr.c:201 __vfs_setxattr_noperm+0x12e/0x5e0 fs/xattr.c:235 vfs_setxattr+0x221/0x420 fs/xattr.c:322 do_setxattr fs/xattr.c:630 [inline] setxattr+0x25d/0x2f0 fs/xattr.c:653 path_setxattr+0x1c0/0x2a0 fs/xattr.c:672 __do_sys_lsetxattr fs/xattr.c:695 [inline] __se_sys_lsetxattr fs/xattr.c:691 [inline] __x64_sys_lsetxattr+0xb8/0xd0 fs/xattr.c:691 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f2d4de7cda9 RSP: 002b:00007f2d4eb740c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd RAX: ffffffffffffffda RBX: 00007f2d4dfac050 RCX: 00007f2d4de7cda9 RDX: 00000000200010c0 RSI: 0000000020000180 RDI: 0000000020000140 RBP: 00007f2d4dec947a R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000001009 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f2d4dfac050 R15: 00007ffd480444a8 INFO: lockdep is turned off. NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 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+0x198/0x310 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xfaf/0xff0 kernel/hung_task.c:379 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:lockdep_init_map_type+0x1c/0x900 kernel/locking/lockdep.c:4859 Code: ff e8 88 6d b6 09 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00 00 <44> 89 4c 24 18 44 89 44 24 1c 89 4c 24 0c 49 89 d7 49 89 f6 49 89 RSP: 0018:ffffc90000157340 EFLAGS: 00000282 RAX: be0d484d9aa34000 RBX: ffff8880a23b8e88 RCX: 0000000000000000 RDX: ffffffff92643948 RSI: ffffffff8d146126 RDI: ffff8880a23b8ea0 RBP: ffffc90000157420 R08: 0000000000000002 R09: 0000000000000000 R10: ffff8880a23b8e80 R11: ffffed1014477175 R12: dffffc0000000000 R13: ffff88801729e8c0 R14: ffffffff92643948 R15: ffffffff8d146126 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6e11178198 CR3: 000000000d732000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lockdep_init_map_waits include/linux/lockdep.h:135 [inline] lockdep_init_map_wait include/linux/lockdep.h:142 [inline] __raw_spin_lock_init+0x45/0x100 kernel/locking/spinlock_debug.c:25 kasan_init_object_meta+0x4c/0x60 mm/kasan/generic.c:495 __kasan_init_slab_obj+0xd/0x20 mm/kasan/common.c:204 kasan_init_slab_obj include/linux/kasan.h:174 [inline] setup_object+0x1a/0x150 mm/slub.c:2171 allocate_slab mm/slub.c:2390 [inline] new_slab+0x168/0x2f0 mm/slub.c:2407 ___slab_alloc+0xd17/0x13d0 mm/slub.c:3540 __slab_alloc mm/slub.c:3625 [inline] __slab_alloc_node mm/slub.c:3678 [inline] slab_alloc_node mm/slub.c:3850 [inline] kmem_cache_alloc_node+0x241/0x380 mm/slub.c:3903 kmalloc_reserve+0x8a/0x260 net/core/skbuff.c:560 __alloc_skb+0x1b1/0x420 net/core/skbuff.c:651 skb_copy+0xef/0x760 net/core/skbuff.c:2019 mac80211_hwsim_tx_frame_no_nl+0x1063/0x18c0 drivers/net/wireless/virtual/mac80211_hwsim.c:1850 mac80211_hwsim_tx_frame+0x1cc/0x220 drivers/net/wireless/virtual/mac80211_hwsim.c:2186 mac80211_hwsim_beacon_tx+0x3d9/0x7b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2279 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:767 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:803 mac80211_hwsim_beacon+0xd4/0x1e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2305 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x59f/0xd20 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1769 __do_softirq+0x2b8/0x939 kernel/softirq.c:553 run_ksoftirqd+0xc5/0x120 kernel/softirq.c:921 smpboot_thread_fn+0x530/0x9f0 kernel/smpboot.c:164 kthread+0x2d3/0x370 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242