diff options
| author | Christian Brauner <brauner@kernel.org> | 2025-09-12 13:52:26 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-15 13:45:27 +0200 |
| commit | f8527a29f4619f74bc30a9845ea87abb9a6faa1e (patch) | |
| tree | 3d07431f2c149999e610cb8b5ee73620c3a8379d | |
| parent | 4d906371d1f9fc9ce47b2c8f37444680246557bc (diff) | |
nsfs: validate extensible ioctls
Validate extensible ioctls stricter than we do now.
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
| -rw-r--r-- | fs/nsfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/nsfs.c b/fs/nsfs.c index ce51041bb624..d016d36272d4 100644 --- a/fs/nsfs.c +++ b/fs/nsfs.c @@ -169,9 +169,11 @@ static bool nsfs_ioctl_valid(unsigned int cmd) /* Extensible ioctls require some extra handling. */ switch (_IOC_NR(cmd)) { case _IOC_NR(NS_MNT_GET_INFO): + return extensible_ioctl_valid(cmd, NS_MNT_GET_INFO, MNT_NS_INFO_SIZE_VER0); case _IOC_NR(NS_MNT_GET_NEXT): + return extensible_ioctl_valid(cmd, NS_MNT_GET_NEXT, MNT_NS_INFO_SIZE_VER0); case _IOC_NR(NS_MNT_GET_PREV): - return (_IOC_TYPE(cmd) == _IOC_TYPE(cmd)); + return extensible_ioctl_valid(cmd, NS_MNT_GET_PREV, MNT_NS_INFO_SIZE_VER0); } return false; |