diff options
| author | Richard Weinberger <richard@nod.at> | 2012-01-13 18:07:40 +0400 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> | 2012-01-15 17:06:08 +0400 |
| commit | 4a59c797a18917a5cf3ff7ade296b46134d91e6a (patch) | |
| tree | 5f6f45af1f25eb25f99ac110f27084bd29cfb260 /drivers/mtd | |
| parent | e234b5f2079414b3d772286e3ee00e7bbf6da833 (diff) | |
| download | linux-4a59c797a18917a5cf3ff7ade296b46134d91e6a.tar.xz | |
UBI: fix nameless volumes handling
Currently it's possible to create a volume without a name. E.g:
ubimkvol -n 32 -s 2MiB -t static /dev/ubi0 -N ""
After that vtbl_check() will always fail because it does not permit
empty strings.
Cc: stable@kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/ubi/cdev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 3320a50ba4f0..ad76592fb2f4 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -632,6 +632,9 @@ static int verify_mkvol_req(const struct ubi_device *ubi, if (req->alignment != 1 && n) goto bad; + if (!req->name[0] || !req->name_len) + goto bad; + if (req->name_len > UBI_VOL_NAME_MAX) { err = -ENAMETOOLONG; goto bad; |