------------[ cut here ]------------ WARNING: CPU: 0 PID: 15446 at block/blk-mq.c:4133 blk_mq_release+0xf0/0x27c block/blk-mq.c:4133 Modules linked in: CPU: 0 PID: 15446 Comm: kworker/u4:22 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026 Workqueue: nvme-delete-wq nvme_delete_ctrl_work pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : blk_mq_release+0xf0/0x27c block/blk-mq.c:4133 lr : blk_mq_release+0xf0/0x27c block/blk-mq.c:4133 sp : ffff800021967840 x29: ffff8000219678b0 x28: 0000000000000000 x27: 1ffff00002b7c0f4 x26: 1fffe00019dd6e99 x25: 1fffe00019dd6ea0 x24: 0000000000000001 x23: dfff800000000000 x22: ffff70000432cf08 x21: ffff800021967840 x20: ffff0000db7d52a8 x19: ffff0000ceeb73c8 x18: 1fffe00033e6997e x17: ffff80000bfe745c x16: ffff800011bb65f8 x15: 0000000000000000 x14: 0000000000000406 x13: 0000000000ff0100 x12: ffff800017d74160 x11: ff0080000a7d5294 x10: 0000000000000000 x9 : ffff80000a7d5294 x8 : ffff0000c3fdd400 x7 : ffff800011ace558 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : ffff800011d1edc0 x0 : ffff0000db7d5000 Call trace: blk_mq_release+0xf0/0x27c block/blk-mq.c:4133 blk_release_queue+0x108/0x1b0 block/blk-sysfs.c:774 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:729 blk_put_queue+0x20/0x30 block/blk-core.c:269 nvme_free_ctrl+0xc4/0x46c drivers/nvme/host/core.c:5196 device_release+0x94/0x1b4 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:681 [inline] kobject_release lib/kobject.c:712 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:729 put_device+0x28/0x40 drivers/base/core.c:3820 nvme_put_ctrl drivers/nvme/host/nvme.h:718 [inline] nvme_uninit_ctrl drivers/nvme/host/core.c:5172 [inline] nvme_do_delete_ctrl+0x1d8/0x1f4 drivers/nvme/host/core.c:219 nvme_delete_ctrl_work+0x20/0x30 drivers/nvme/host/core.c:227 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439 kthread+0x254/0x2e0 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850 irq event stamp: 256974 hardirqs last enabled at (256973): [] kasan_quarantine_put+0xc4/0x200 mm/kasan/quarantine.c:242 hardirqs last disabled at (256974): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (256350): [] softirq_handle_end kernel/softirq.c:439 [inline] softirqs last enabled at (256350): [] handle_softirqs+0xb1c/0xc90 kernel/softirq.c:624 softirqs last disabled at (256335): [] __do_softirq+0x14/0x20 kernel/softirq.c:630 ---[ end trace 0000000000000000 ]--- wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready