INFO: task syz-executor.0:4981 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack: 0 pid: 4981 ppid: 4880 flags:0x00000005 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 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blk_ioctl_zeroout block/ioctl.c:183 [inline] blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 blkdev_ioctl+0x570/0xbb8 block/ioctl.c:598 block_ioctl+0xa4/0x118 block/fops.c:496 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __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-executor.3:4983 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack: 0 pid: 4983 ppid: 4886 flags:0x00000005 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 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blk_ioctl_zeroout block/ioctl.c:183 [inline] blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 blkdev_ioctl+0x570/0xbb8 block/ioctl.c:598 block_ioctl+0xa4/0x118 block/fops.c:496 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __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-executor.4:4985 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack: 0 pid: 4985 ppid: 4897 flags:0x00000005 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 rwsem_down_write_slowpath+0xcb8/0x13f4 kernel/locking/rwsem.c:1165 __down_write_common kernel/locking/rwsem.c:1292 [inline] __down_write kernel/locking/rwsem.c:1301 [inline] down_write+0xe8/0x12c kernel/locking/rwsem.c:1552 filemap_invalidate_lock include/linux/fs.h:832 [inline] blk_ioctl_zeroout block/ioctl.c:183 [inline] blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 blkdev_ioctl+0x570/0xbb8 block/ioctl.c:598 block_ioctl+0xa4/0x118 block/fops.c:496 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __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: ffff8000143513a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:311 4 locks held by kworker/u4:1/136: #0: ffff0000c038c138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x678/0x1140 kernel/workqueue.c:2283 #1: ffff80001bdb7c00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6b8/0x1140 kernel/workqueue.c:2285 #2: ffff8000162a3190 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x12c/0xa98 net/core/net_namespace.c:589 #3: ffff0000d9a793e8 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x114/0x2d4 drivers/net/wireguard/device.c:233 3 locks held by kworker/u4:3/153: 2 locks held by getty/3804: #0: ffff0000d5578098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340 #1: ffff80001bd5e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c drivers/tty/n_tty.c:2158 1 lock held by syz-executor.1/4963: 1 lock held by syz-executor.0/4981: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.3/4983: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.4/4985: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.2/5012: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.1/5060: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.0/5082: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.3/5092: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.4/5102: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.2/5131: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.1/5156: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.0/5198: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.3/5204: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.4/5222: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.2/5245: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.1/5266: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.0/5301: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.3/5318: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.4/5336: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.2/5366: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.1/5386: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.0/5414: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.3/5438: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 1 lock held by syz-executor.4/5456: #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock include/linux/fs.h:832 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blk_ioctl_zeroout block/ioctl.c:183 [inline] #0: ffff0000c058c450 (mapping.invalidate_lock#2){++++}-{3:3}, at: blkdev_common_ioctl+0x1c6c/0x25c8 block/ioctl.c:487 =============================================