get_fsdevice_by_path will return NULL if no file system was mounted at location. Returned pointer was dereferenced unconditionally, potentially leading to null pointer dereference. Fix this.
Signed-off-by: Ahmad Fatoum <[email protected]> --- fs/fs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/fs.c b/fs/fs.c index 65e4c661b9ce..368458cc54f8 100644 --- a/fs/fs.c +++ b/fs/fs.c @@ -240,6 +240,8 @@ struct cdev *get_cdev_by_mountpath(const char *path) struct fs_device *fsdev; fsdev = get_fsdevice_by_path(path); + if (!fsdev) + return NULL; return fsdev->cdev; } @@ -249,6 +251,8 @@ char *get_mounted_path(const char *path) struct fs_device *fdev; fdev = get_fsdevice_by_path(path); + if (!fdev) + return NULL; return fdev->path; } -- 2.39.2
