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yam: fix a memory leak in yam_siocdevprivate()

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ym needs to be free when ym->cmd != SIOCYAMSMCS.

Fixes: 0781168e23 ("yam: fix a missing-check bug")
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hangyu Hua 2022-01-24 11:29:54 +08:00 committed by David S. Miller
parent c74ead223d
commit 29eb315427
1 changed files with 1 additions and 3 deletions
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4
drivers/net/hamradio/yam.c
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@ -950,9 +950,7 @@ static int yam_siocdevprivate(struct net_device *dev, struct ifreq *ifr, void __
ym = memdup_user(data, sizeof(struct yamdrv_ioctl_mcs));
if (IS_ERR(ym))
return PTR_ERR(ym);
if (ym->cmd != SIOCYAMSMCS)
return -EINVAL;
if (ym->bitrate > YAM_MAXBITRATE) {
if (ym->cmd != SIOCYAMSMCS || ym->bitrate > YAM_MAXBITRATE) {
kfree(ym);
return -EINVAL;
}