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yam: fix a memory leak in yam_siocdevprivate()

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[ Upstream commit 29eb31542787e1019208a2e1047bb7c76c069536 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Hangyu Hua
2022-01-24 11:29:54 +08:00
committed by Greg Kroah-Hartman
parent 93a6e920d8
commit 729e54636b
1 changed files with 1 additions and 3 deletions
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4
drivers/net/hamradio/yam.c
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@@ -951,9 +951,7 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
sizeof(struct yamdrv_ioctl_mcs)); sizeof(struct yamdrv_ioctl_mcs));
if (IS_ERR(ym)) if (IS_ERR(ym))
return PTR_ERR(ym); return PTR_ERR(ym);
if (ym->cmd != SIOCYAMSMCS) if (ym->cmd != SIOCYAMSMCS || ym->bitrate > YAM_MAXBITRATE) {
return -EINVAL;
if (ym->bitrate > YAM_MAXBITRATE) {
kfree(ym); kfree(ym);
return -EINVAL; return -EINVAL;
} }