------------[ cut here ]------------ online_reserved not 0 at shutdown: 8064 WARNING: CPU: 0 PID: 6480 at fs/bcachefs/super.c:585 __bch2_fs_free fs/bcachefs/super.c:585 [inline] WARNING: CPU: 0 PID: 6480 at fs/bcachefs/super.c:585 bch2_fs_release+0x6ac/0x708 fs/bcachefs/super.c:624 Modules linked in: CPU: 0 UID: 0 PID: 6480 Comm: syz-executor Not tainted 6.14.0-syzkaller-gd6b13dbd03b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __bch2_fs_free fs/bcachefs/super.c:585 [inline] pc : bch2_fs_release+0x6ac/0x708 fs/bcachefs/super.c:624 lr : __bch2_fs_free fs/bcachefs/super.c:585 [inline] lr : bch2_fs_release+0x6ac/0x708 fs/bcachefs/super.c:624 sp : ffff8000a2627ac0 x29: ffff8000a2627ae0 x28: 0000000000000003 x27: 00007dfe9bc03700 x26: ffff0000e5e00000 x25: dfff800000000000 x24: fffffdffbf6c5700 x23: 0000000000000008 x22: 0000000000001f80 x21: 1fffe0001cbc0942 x20: ffff80008fd51180 x19: ffff0000e5e00068 x18: 1fffe000366e6e86 x17: ffff80008fd4d000 x16: ffff80008046b590 x15: 0000000000000001 x14: 1fffe000366e98f0 x13: ffff8000a2628000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 78560f1b51010100 x8 : 78560f1b51010100 x7 : ffff8000803d6a00 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000ebb18000 x1 : ffff80008b91a740 x0 : ffff800123a9e000 Call trace: __bch2_fs_free fs/bcachefs/super.c:585 [inline] (P) bch2_fs_release+0x6ac/0x708 fs/bcachefs/super.c:624 (P) kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:737 bch2_fs_free+0x2c4/0x334 fs/bcachefs/super.c:686 bch2_kill_sb+0x48/0x58 fs/bcachefs/fs.c:2313 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1413 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420 task_work_run+0x230/0x2e0 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 543164 hardirqs last enabled at (543163): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline] hardirqs last enabled at (543163): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5132 hardirqs last disabled at (543164): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (543150): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (543150): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (543135): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ bad length passed for symlink [/tmp/syz-imagegen2884317625/] (got 39, expected 29) WARNING: CPU: 0 PID: 6480 at ./include/linux/fs.h:803 inode_set_cached_link+0xf4/0x130 include/linux/fs.h:-1 Modules linked in: CPU: 0 UID: 0 PID: 6480 Comm: syz-executor Tainted: G W 6.14.0-syzkaller-gd6b13dbd03b7 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : inode_set_cached_link+0xf4/0x130 include/linux/fs.h:-1 lr : inode_set_cached_link+0xf0/0x130 include/linux/fs.h:802 sp : ffff8000a26274e0 x29: ffff8000a26274e0 x28: dfff800000000000 x27: ffff0000dbb75978 x26: ffff0000dbb75928 x25: ffff0000f2aaa638 x24: dfff800000000000 x23: ffff8000931bf000 x22: 000000000000001d x21: ffff0000dbb75928 x20: 000000000000001d x19: ffff0000dbb75bd8 x18: 0000000000000008 x17: 0000000000000000 x16: ffff8000832bccd4 x15: 0000000000000001 x14: 1fffe000366e6ef2 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000002 x10: 0000000000ff0100 x9 : 78560f1b51010100 x8 : 78560f1b51010100 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a2626c98 x4 : ffff80008fe3fb00 x3 : ffff800080746fc0 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: inode_set_cached_link+0xf4/0x130 include/linux/fs.h:-1 (P) __ext4_iget+0x225c/0x3184 fs/ext4/inode.c:5012 ext4_lookup+0x328/0x5e8 fs/ext4/namei.c:1813 __lookup_slow+0x258/0x37c fs/namei.c:1793 lookup_slow+0x60/0x84 fs/namei.c:1810 walk_component+0x280/0x36c fs/namei.c:2114 lookup_last fs/namei.c:2612 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2636 filename_lookup+0x204/0x51c fs/namei.c:2665 user_path_at+0x50/0x74 fs/namei.c:3072 ksys_umount fs/namespace.c:2071 [inline] __do_sys_umount fs/namespace.c:2079 [inline] __se_sys_umount fs/namespace.c:2077 [inline] __arm64_sys_umount+0xf4/0x178 fs/namespace.c:2077 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 570218 hardirqs last enabled at (570217): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (570217): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2869 hardirqs last disabled at (570218): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (568996): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (568994): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---