mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
sdio: fix read buffer overflow
Avoid buffer underrun when parsing an invalid CISTPL_VERS_1. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
e9510176ff
commit
4245c0256d
1 changed files with 1 additions and 1 deletions
|
@ -40,7 +40,7 @@ static int cistpl_vers_1(struct mmc_card *card, struct sdio_func *func,
|
|||
nr_strings++;
|
||||
}
|
||||
|
||||
if (buf[i-1] != '\0') {
|
||||
if (nr_strings < 4) {
|
||||
printk(KERN_WARNING "SDIO: ignoring broken CISTPL_VERS_1\n");
|
||||
return 0;
|
||||
}
|
||||
|
|
Loading…
Reference in a new issue