From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- fs/jffs2/acl.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 fs/jffs2/acl.h (limited to 'fs/jffs2/acl.h') diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h new file mode 100644 index 000000000..e976b8cb8 --- /dev/null +++ b/fs/jffs2/acl.h @@ -0,0 +1,43 @@ +/* + * JFFS2 -- Journalling Flash File System, Version 2. + * + * Copyright © 2006 NEC Corporation + * + * Created by KaiGai Kohei + * + * For licensing information, see the file 'LICENCE' in this directory. + * + */ + +struct jffs2_acl_entry { + jint16_t e_tag; + jint16_t e_perm; + jint32_t e_id; +}; + +struct jffs2_acl_entry_short { + jint16_t e_tag; + jint16_t e_perm; +}; + +struct jffs2_acl_header { + jint32_t a_version; + struct jffs2_acl_entry a_entries[]; +}; + +#ifdef CONFIG_JFFS2_FS_POSIX_ACL + +struct posix_acl *jffs2_get_acl(struct inode *inode, int type, bool rcu); +int jffs2_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, + struct posix_acl *acl, int type); +extern int jffs2_init_acl_pre(struct inode *, struct inode *, umode_t *); +extern int jffs2_init_acl_post(struct inode *); + +#else + +#define jffs2_get_acl (NULL) +#define jffs2_set_acl (NULL) +#define jffs2_init_acl_pre(dir_i,inode,mode) (0) +#define jffs2_init_acl_post(inode) (0) + +#endif /* CONFIG_JFFS2_FS_POSIX_ACL */ -- cgit v1.3.1