diff options
| author | Azeem Shaikh <azeemshaikh38@gmail.com> | 2023-05-09 01:41:36 +0000 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2023-05-30 16:42:00 -0700 |
| commit | 7391928025f28cd4cab43e59d2b4e36509b9337e (patch) | |
| tree | 8cb9d32863953511505ce6624961ceed7ad31a94 /fs/befs/linuxvfs.c | |
| parent | 2f088dfc1878108748018af0d2e3748ba9eee1e9 (diff) | |
befs: Replace all non-returning strlcpy with strscpy
strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated.
In an effort to remove strlcpy() completely, replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89
Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230509014136.2095900-1-azeemshaikh38@gmail.com
Diffstat (limited to 'fs/befs/linuxvfs.c')
| -rw-r--r-- | fs/befs/linuxvfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 32749fcee090..eee9237386e2 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -374,7 +374,7 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino) if (S_ISLNK(inode->i_mode) && !(befs_ino->i_flags & BEFS_LONG_SYMLINK)){ inode->i_size = 0; inode->i_blocks = befs_sb->block_size / VFS_BLOCK_SIZE; - strlcpy(befs_ino->i_data.symlink, raw_inode->data.symlink, + strscpy(befs_ino->i_data.symlink, raw_inode->data.symlink, BEFS_SYMLINK_LEN); } else { int num_blks; |