Hastebin

INFO: task syz.2.2128:8293 blocked for more than 143 seconds.
      Tainted: G            E      6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.2128      state:D stack:0     pid:8293  tgid:8290  ppid:7143   flags:0x00000001
Call trace:
 __switch_to+0x528/0xa3c proc/self/cwd/common/arch/arm64/kernel/process.c:617
 context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
 __schedule+0x15a8/0x2560 proc/self/cwd/common/kernel/sched/core.c:7737
 __schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
 schedule+0xe0/0x298 proc/self/cwd/common/kernel/sched/core.c:7833
 super_lock+0x160/0x2ec proc/self/cwd/common/fs/super.c:115
 bdev_super_lock+0x1a8/0x324 proc/self/cwd/common/fs/super.c:1393
 fs_bdev_sync+0x2c/0x68 proc/self/cwd/common/fs/super.c:1434
 blkdev_flushbuf proc/self/cwd/common/block/ioctl.c:426 [inline]
 blkdev_common_ioctl+0xda8/0x29b0 proc/self/cwd/common/block/ioctl.c:564
 blkdev_ioctl+0x56c/0x1328 proc/self/cwd/common/block/ioctl.c:687
 vfs_ioctl proc/self/cwd/common/fs/ioctl.c:51 [inline]
 __do_sys_ioctl proc/self/cwd/common/fs/ioctl.c:907 [inline]
 __se_sys_ioctl proc/self/cwd/common/fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0x16c/0x1f0 proc/self/cwd/common/fs/ioctl.c:893
 __invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0xa4/0x288 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x138/0x24c proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x50/0x64 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
 el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
 el0t_64_sync+0x19c/0x1a0 proc/self/cwd/common/arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
5 locks held by kworker/u16:1/12:
1 lock held by khungtaskd/54:
 #0: ffffffc0848fc540 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x14/0x50 proc/self/cwd/common/include/linux/rcupdate.h:336
2 locks held by syslogd/108:
2 locks held by getty/341:
 #0: ffffff80c8a3d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x5c proc/self/cwd/common/drivers/tty/tty_ldsem.c:340
 #1: ffffffc08633b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x298/0xf14 proc/self/cwd/common/drivers/tty/n_tty.c:2211
3 locks held by syz-executor/345:
3 locks held by kworker/2:1/4267:
1 lock held by syz-executor/5694:
4 locks held by syz-executor/6198:
1 lock held by syz.9.1654/6898:
3 locks held by kworker/u16:4/8504:
 #0: ffffff80c0037158 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x624/0x14e4 proc/self/cwd/common/kernel/workqueue.c:3211
 #1: ffffffc0a3ed7c78 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x698/0x14e4 proc/self/cwd/common/kernel/workqueue.c:3211
 #2: ffffffc084efde48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79
1 lock held by syz-executor/8510:
2 locks held by syz.0.2220/8560:
2 locks held by syz.0.2220/8570:
2 locks held by syz-executor/8792:
 #0: ffffffc084ef2e30 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x3d0/0x75c proc/self/cwd/common/net/core/net_namespace.c:506
 #1: ffffffc084efde48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock_killable+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:85
2 locks held by syz.8.2304/8834:

=============================================

INFO: task syz.2.2128:8293 blocked for more than 163 seconds.
      Tainted: G            E      6.12.18-android16-1-maybe-dirty-4k #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.2128      state:D stack:0     pid:8293  tgid:8290  ppid:7143   flags:0x00000001
Call trace:
 __switch_to+0x528/0xa3c proc/self/cwd/common/arch/arm64/kernel/process.c:617
 context_switch proc/self/cwd/common/kernel/sched/core.c:5911 [inline]
 __schedule+0x15a8/0x2560 proc/self/cwd/common/kernel/sched/core.c:7737
 __schedule_loop proc/self/cwd/common/kernel/sched/core.c:7818 [inline]
 schedule+0xe0/0x298 proc/self/cwd/common/kernel/sched/core.c:7833
 super_lock+0x160/0x2ec proc/self/cwd/common/fs/super.c:115
 bdev_super_lock+0x1a8/0x324 proc/self/cwd/common/fs/super.c:1393
 fs_bdev_sync+0x2c/0x68 proc/self/cwd/common/fs/super.c:1434
 blkdev_flushbuf proc/self/cwd/common/block/ioctl.c:426 [inline]
 blkdev_common_ioctl+0xda8/0x29b0 proc/self/cwd/common/block/ioctl.c:564
 blkdev_ioctl+0x56c/0x1328 proc/self/cwd/common/block/ioctl.c:687
 vfs_ioctl proc/self/cwd/common/fs/ioctl.c:51 [inline]
 __do_sys_ioctl proc/self/cwd/common/fs/ioctl.c:907 [inline]
 __se_sys_ioctl proc/self/cwd/common/fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0x16c/0x1f0 proc/self/cwd/common/fs/ioctl.c:893
 __invoke_syscall proc/self/cwd/common/arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0xa4/0x288 proc/self/cwd/common/arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x138/0x24c proc/self/cwd/common/arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x50/0x64 proc/self/cwd/common/arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0xb4 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:715
 el0t_64_sync_handler+0x98/0x108 proc/self/cwd/common/arch/arm64/kernel/entry-common.c:733
 el0t_64_sync+0x19c/0x1a0 proc/self/cwd/common/arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
5 locks held by kworker/u16:1/12:
1 lock held by khungtaskd/54:
 #0: ffffffc0848fc540 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x14/0x50 proc/self/cwd/common/include/linux/rcupdate.h:336
3 locks held by syslogd/108:
2 locks held by getty/341:
 #0: ffffff80c8a3d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x44/0x5c proc/self/cwd/common/drivers/tty/tty_ldsem.c:340
 #1: ffffffc08633b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x298/0xf14 proc/self/cwd/common/drivers/tty/n_tty.c:2211
1 lock held by syz.9.1654/6898:
3 locks held by kworker/u16:4/8504:
 #0: ffffff80c0037158 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x624/0x14e4 proc/self/cwd/common/kernel/workqueue.c:3211
 #1: ffffffc0a3ed7c78 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x698/0x14e4 proc/self/cwd/common/kernel/workqueue.c:3211
 #2: ffffffc084efde48 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x28/0x3c proc/self/cwd/common/net/core/rtnetlink.c:79

=============================================