mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-28 13:22:57 +00:00
mmc: core: Avoid negative index with array access
commitcf55a7acd1
upstream. Commit4d0c8d0aef
("mmc: core: Use mrq.sbc in close-ended ffu") assigns prev_idata = idatas[i - 1], but doesn't check that the iterator i is greater than zero. Let's fix this by adding a check. Fixes:4d0c8d0aef
("mmc: core: Use mrq.sbc in close-ended ffu") Link: https://lore.kernel.org/all/20231129092535.3278-1-avri.altman@wdc.com/ Cc: stable@vger.kernel.org Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org> Reviewed-by: Avri Altman <avri.altman@wdc.com> Tested-by: Francesco Dolcini <francesco.dolcini@toradex.com> Link: https://lore.kernel.org/r/20240313133744.2405325-2-mikko.rapeli@linaro.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
d7b24b0d80
commit
7d0e8a6147
1 changed files with 1 additions and 1 deletions
|
@ -488,7 +488,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
|
|||
if (idata->flags & MMC_BLK_IOC_DROP)
|
||||
return 0;
|
||||
|
||||
if (idata->flags & MMC_BLK_IOC_SBC)
|
||||
if (idata->flags & MMC_BLK_IOC_SBC && i > 0)
|
||||
prev_idata = idatas[i - 1];
|
||||
|
||||
/*
|
||||
|
|
Loading…
Reference in a new issue