CVE-2026-98543

In the Linux kernel, the following vulnerability has been resolved:

bpf: fs/xattr: don't assume the inode is locked in path_unlink/path_rmdir

bpf_lsm_has_d_inode_locked() makes the verifier rewrite

bpf_[set|remove]_dentry_xattr() to the _locked variants, which assume

that the caller already holds the inode's i_rwsem. The path_unlink and

path_rmdir hooks are listed, but security_path_unlink() and

security_path_rmdir() run before vfs_unlink()/vfs_rmdir() take the

victim inode's i_rwsem, so a sleepable BPF LSM program attached to

either hook mutates the victim's xattrs without the lock held.

Drop the two path hooks from d_inode_locked_hooks so that the verifier

keeps the locking bpf_[set|remove]_dentry_xattr() variants, which take

the lock themselves.