------------[ cut here ]------------ bad length passed for symlink [/tmp/syz-imagegen2884317625/] (got 39, expected 29) WARNING: CPU: 1 PID: 6478 at ./include/linux/fs.h:803 inode_set_cached_link+0xf4/0x130 include/linux/fs.h:-1 Modules linked in: CPU: 1 UID: 0 PID: 6478 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 : inode_set_cached_link+0xf4/0x130 include/linux/fs.h:-1 lr : inode_set_cached_link+0xf0/0x130 include/linux/fs.h:802 sp : ffff8000a30074e0 x29: ffff8000a30074e0 x28: dfff800000000000 x27: ffff0000db3dc5a8 x26: ffff0000db3dc558 x25: ffff0000d746c638 x24: dfff800000000000 x23: ffff8000931bf000 x22: 000000000000001d x21: ffff0000db3dc558 x20: 000000000000001d x19: ffff0000db3dc808 x18: 1fffe000366eb686 x17: ffff80008fd4d000 x16: ffff80008046b590 x15: 0000000000000001 x14: 1fffe000366ee0f0 x13: ffff8000a3008000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 56fe7487a8008e00 x8 : 56fe7487a8008e00 x7 : ffff8000803d6a00 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000007 x1 : ffff80008b91a740 x0 : ffff800123ac2000 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: 152376 hardirqs last enabled at (152375): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline] hardirqs last enabled at (152375): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5132 hardirqs last disabled at (152376): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (152362): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (152362): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (152259): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- EXT4-fs error (device loop3): ext4_free_branches:1023: inode #13: comm syz-executor: invalid indirect mapped block 234881024 (level 0)