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scm: fix a typo in put_cmsg()

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We need to store cmlen instead of len in cm->cmsg_len.

Fixes: 38ebcf5096 ("scm: optimize put_cmsg()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2021-04-16 11:35:38 -07:00 committed by David S. Miller
parent 392c36e5be
commit e7ad33fa7b
1 changed files with 1 additions and 1 deletions
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2
net/core/scm.c
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@ -232,7 +232,7 @@ int put_cmsg(struct msghdr * msg, int level, int type, int len, void *data)
if (!user_write_access_begin(cm, cmlen))
goto efault;
unsafe_put_user(len, &cm->cmsg_len, efault_end);
unsafe_put_user(cmlen, &cm->cmsg_len, efault_end);
unsafe_put_user(level, &cm->cmsg_level, efault_end);
unsafe_put_user(type, &cm->cmsg_type, efault_end);
unsafe_copy_to_user(CMSG_USER_DATA(cm), data,