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fs: fuse: Avoid possible buffer overflow

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Checks path's size before copying it to local variable.

Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
This commit is contained in:
Flavio Ceolin 2023-12-15 15:09:50 -08:00 committed by Anas Nashif
parent 9c3ca4573a
commit 3267bdc4b7
1 changed files with 8 additions and 1 deletions
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9
subsys/fs/fuse_fs_access.c
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@ -65,8 +65,15 @@ static void release_file_handle(size_t handle)
static bool is_mount_point(const char *path)
{
char dir_path[PATH_MAX];
size_t len;
sprintf(dir_path, "%s", path);
len = strlen(path);
if (len >= sizeof(dir_path)) {
return false;
}
memcpy(dir_path, path, len);
dir_path[len] = '\0';
return strcmp(dirname(dir_path), "/") == 0;
}