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| author |   Mimi Zohar <zohar@linux.ibm.com> | 2023-12-12 06:12:43 -0500 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.ibm.com> | 2023-12-20 07:39:52 -0500 |
| commit | 40ca4ee3136d2d09977d1cab8c0c0e1582c3359d (patch) | |
| tree | 552c49da9983f04c064d62e019fff50ddcd37d6f /include/linux/evm.h | |
| parent | MAINTAINERS: Add Eric Snowberg as a reviewer to IMA (diff) | |
| download | wireguard-linux-40ca4ee3136d2d09977d1cab8c0c0e1582c3359d.tar.xz wireguard-linux-40ca4ee3136d2d09977d1cab8c0c0e1582c3359d.zip | |
evm: don't copy up 'security.evm' xattr
The security.evm HMAC and the original file signatures contain
filesystem specific data. As a result, the HMAC and signature
are not the same on the stacked and backing filesystems.
Don't copy up 'security.evm'.
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Diffstat (limited to 'include/linux/evm.h')
| -rw-r--r-- | include/linux/evm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/evm.h b/include/linux/evm.h index 01fc495a83e2..36ec884320d9 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -31,6 +31,7 @@ extern void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, size_t xattr_value_len); +extern int evm_inode_copy_up_xattr(const char *name); extern int evm_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *xattr_name); extern void evm_inode_post_removexattr(struct dentry *dentry, @@ -117,6 +118,11 @@ static inline void evm_inode_post_setxattr(struct dentry *dentry, return; } +static inline int evm_inode_copy_up_xattr(const char *name) +{ + return 0; +} + static inline int evm_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *xattr_name) |