Hello, syzbot found the following issue on: HEAD commit: c014c37159a1 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=11904307a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=b40c4aa62d29380a dashboard link: https://syzkaller.appspot.com/bug?extid=b6973d2babdaf51385eb compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12f81e5fa80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10d3b537a80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/890b3d127b57/disk-c014c371.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/300e5c07650c/vmlinux-c014c371.xz kernel image: https://storage.googleapis.com/syzbot-assets/eb10f2f51203/Image-c014c371.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/03d2fd0e1068/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b6973d2babdaf51385eb@xxxxxxxxxxxxxxxxxxxxxxxxx INFO: task syz-executor142:6032 blocked for more than 143 seconds. Not tainted 6.5.0-rc6-syzkaller-gc014c37159a1 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor142 state:D stack:0 pid:6032 ppid:6030 flags:0x00000004 Call trace: __switch_to+0x320/0x754 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5381 [inline] __schedule+0x1364/0x23b4 kernel/sched/core.c:6710 schedule+0xc4/0x170 kernel/sched/core.c:6786 io_schedule+0x8c/0x12c kernel/sched/core.c:9028 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1304 __folio_lock+0x2c/0x3c mm/filemap.c:1632 folio_lock include/linux/pagemap.h:959 [inline] truncate_inode_pages_range+0x930/0xf74 mm/truncate.c:422 truncate_inode_pages mm/truncate.c:449 [inline] truncate_inode_pages_final+0x90/0xc0 mm/truncate.c:484 evict+0x26c/0x68c fs/inode.c:666 dispose_list fs/inode.c:697 [inline] evict_inodes+0x6b4/0x74c fs/inode.c:747 generic_shutdown_super+0x9c/0x328 fs/super.c:478 kill_block_super+0x60/0xa0 fs/super.c:1417 deactivate_locked_super+0xac/0x124 fs/super.c:330 deactivate_super+0xe0/0x100 fs/super.c:361 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1254 __cleanup_mnt+0x20/0x30 fs/namespace.c:1261 task_work_run+0x230/0x2e0 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] do_notify_resume+0x2180/0x3c90 arch/arm64/kernel/signal.c:1305 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline] el0_svc+0xa0/0x16c arch/arm64/kernel/entry-common.c:679 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/13: #0: ffff80008e2718d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffff80008e271c90 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:522 1 lock held by khungtaskd/29: #0: ffff80008e271700 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:302 2 locks held by getty/5744: #0: ffff0000d3f64098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff8000959122f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2187 1 lock held by syz-executor142/6032: #0: ffff0000c77bc0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:360 ============================================= --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
