INFO: task syz.2.18:5225 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.18 state:D stack: 0 pid: 5225 ppid: 4934 flags:0x00000001 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe08/0x1bf8 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 io_schedule+0x84/0x160 kernel/sched/core.c:8503 bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0xb4/0x1ec kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0x11c/0x168 kernel/sched/wait_bit.c:117 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x80/0xc0 fs/buffer.c:69 lock_buffer include/linux/buffer_head.h:402 [inline] ext4_quota_write+0x358/0x52c fs/ext4/super.c:6611 qtree_write_dquot+0x1a8/0x3f8 fs/quota/quota_tree.c:422 v2_write_dquot+0xf0/0x180 fs/quota/quota_v2.c:358 dquot_commit+0x128/0x1c4 fs/quota/dquot.c:514 ext4_write_dquot+0x1b4/0x31c fs/ext4/super.c:6185 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6262 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 dquot_alloc_inode+0x680/0xbfc fs/quota/dquot.c:1801 ext4_xattr_inode_alloc_quota fs/ext4/xattr.c:883 [inline] ext4_xattr_set_entry+0x788/0x2d98 fs/ext4/xattr.c:1681 ext4_xattr_block_set+0x9a0/0x26fc fs/ext4/xattr.c:1936 ext4_xattr_set_handle+0xe3c/0x1050 fs/ext4/xattr.c:2422 ext4_xattr_set+0x1e0/0x2b4 fs/ext4/xattr.c:2523 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x120/0x564 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x158/0x2ac fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x248/0x2ac fs/xattr.c:611 path_setxattr+0x12c/0x25c fs/xattr.c:630 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 INFO: task syz.1.17:5229 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.17 state:D stack: 0 pid: 5229 ppid: 4924 flags:0x00000001 Call trace: __switch_to+0x2f4/0x558 arch/arm64/kernel/process.c:521 context_switch kernel/sched/core.c:5049 [inline] __schedule+0xe08/0x1bf8 kernel/sched/core.c:6395 schedule+0x11c/0x1c8 kernel/sched/core.c:6478 io_schedule+0x84/0x160 kernel/sched/core.c:8503 bit_wait_io+0x1c/0xac kernel/sched/wait_bit.c:209 __wait_on_bit_lock+0xb4/0x1ec kernel/sched/wait_bit.c:90 out_of_line_wait_on_bit_lock+0x11c/0x168 kernel/sched/wait_bit.c:117 wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline] __lock_buffer+0x80/0xc0 fs/buffer.c:69 lock_buffer include/linux/buffer_head.h:402 [inline] ext4_quota_write+0x358/0x52c fs/ext4/super.c:6611 qtree_write_dquot+0x1a8/0x3f8 fs/quota/quota_tree.c:422 v2_write_dquot+0xf0/0x180 fs/quota/quota_v2.c:358 dquot_commit+0x128/0x1c4 fs/quota/dquot.c:514 ext4_write_dquot+0x1b4/0x31c fs/ext4/super.c:6185 ext4_mark_dquot_dirty+0xe8/0x140 fs/ext4/super.c:6262 mark_dquot_dirty fs/quota/dquot.c:372 [inline] mark_all_dquot_dirty+0x108/0x424 fs/quota/dquot.c:412 dquot_alloc_inode+0x680/0xbfc fs/quota/dquot.c:1801 ext4_xattr_inode_alloc_quota fs/ext4/xattr.c:883 [inline] ext4_xattr_set_entry+0x788/0x2d98 fs/ext4/xattr.c:1681 ext4_xattr_block_set+0x9a0/0x26fc fs/ext4/xattr.c:1936 ext4_xattr_set_handle+0xe3c/0x1050 fs/ext4/xattr.c:2422 ext4_xattr_set+0x1e0/0x2b4 fs/ext4/xattr.c:2523 ext4_xattr_trusted_set+0x4c/0x64 fs/ext4/xattr_trusted.c:38 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x120/0x564 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x158/0x2ac fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x248/0x2ac fs/xattr.c:611 path_setxattr+0x12c/0x25c fs/xattr.c:630 __do_sys_setxattr fs/xattr.c:646 [inline] __se_sys_setxattr fs/xattr.c:642 [inline] __arm64_sys_setxattr+0xbc/0xd8 fs/xattr.c:642 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffff8000142f1520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:312 2 locks held by kworker/u4:2/148: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001be17c00 ((quota_release_work).work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 3 locks held by kworker/u4:3/351: #0: ffff0000c038c138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001f577c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 #2: ffff80001623dc90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x12c/0xa98 net/core/net_namespace.c:589 2 locks held by kworker/u4:4/449: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001f467c00 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 3 locks held by kworker/u4:5/1606: 1 lock held by udevd/3660: 2 locks held by getty/3803: #0: ffff0000d3d74098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001bbeb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 6 locks held by syz.2.18/5225: #0: ffff0000d6718460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee610de8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee610de8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee610ac0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee610ac0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f520a8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000d6718208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.1.17/5229: #0: ffff0000f2936460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000e7ceabd0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000e7ceabd0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000e7cea8a8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000e7cea8a8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f52268 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000f2936208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.0.16/5581: #0: ffff0000d5f9a460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000e7ceb5c8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000e7ceb5c8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000e7ceb2a0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000e7ceb2a0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f525e8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000d5f9a208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.3.19/5585: #0: ffff0000d31be460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee512bd0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee512bd0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee5128a8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee5128a8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000ee572428 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000d31be208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.4.20/5587: #0: ffff0000f074e460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee5135c8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee5135c8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee5132a0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee5132a0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f527a8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000f074e208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.6.22/5655: #0: ffff0000ced2a460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee6103f0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee6103f0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee6100c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee6100c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f52968 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000ced2a208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.5.21/5661: #0: ffff0000dc5b0460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee513fc0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee513fc0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee513c98 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee513c98 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f52ce8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000dc5b0208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.9.25/5749: #0: ffff0000c2f98460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee7e83f0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee7e83f0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee7e80c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee7e80c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000ee572b28 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000c2f98208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.7.23/5751: #0: ffff0000c127a460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee7e8de8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee7e8de8 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee7e8ac0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee7e8ac0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000ee572ce8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000c127a208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 6 locks held by syz.8.24/5758: #0: ffff0000f25e4460 (sb_writers#3){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:386 #1: ffff0000ee7e97e0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline] #1: ffff0000ee7e97e0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x138/0x2ac fs/xattr.c:302 #2: ffff0000ee7e94b8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline] #2: ffff0000ee7e94b8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x124/0x1050 fs/ext4/xattr.c:2337 #3: ffff800014407538 (dquot_srcu){....}-{0:0}, at: rcu_lock_acquire+0x10/0x4c include/linux/rcupdate.h:312 #4: ffff0000e7f52ea8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x50/0x1c4 fs/quota/dquot.c:507 #5: ffff0000f25e4208 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x80/0x180 fs/quota/quota_v2.c:356 1 lock held by syz-executor/17484: 1 lock held by syz-executor/19975: #0: ffff0000d3480d88 (&xt[i].mutex){+.+.}-{3:3}, at: xt_find_table_lock+0x70/0x394 net/netfilter/x_tables.c:1242 6 locks held by syz-executor/22461: #0: ffff0000d55d2460 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x228/0xa2c fs/read_write.c:590 #1: ffff0000d86cf888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1c0/0x478 fs/kernfs/file.c:287 #2: ffff0000cecbfbd0 (kn->active#291){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x1dc/0x478 fs/kernfs/file.c:288 #3: ffff80001581e3e8 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xd4/0x33c drivers/net/netdevsim/bus.c:344 #4: ffff0000eab9b178 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:764 [inline] #4: ffff0000eab9b178 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1044 [inline] #4: ffff0000eab9b178 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0x9c/0x63c drivers/base/dd.c:1259 #5: ffff0000d4b9e250 (&devlink->lock){+.+.}-{3:3}, at: devlink_traps_unregister+0x40/0x228 net/core/devlink.c:11030 3 locks held by syz-executor/23030: =============================================