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| author | Christoph Hellwig <hch@lst.de> | 2022-01-04 12:21:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-11 17:24:59 +0300 |
| commit | a7c2cae997db6d39a858f42d898d866058a7e035 (patch) | |
| tree | bcf8faced56c9cec8f64ed3a358c2a541ddc8906 /net/netrom | |
| parent | beeb0fdedae802a7fb606e955a81a56a2e3bbac1 (diff) | |
| download | linux-a7c2cae997db6d39a858f42d898d866058a7e035.tar.xz | |
netrom: fix copying in user data in nr_setsockopt
commit 3087a6f36ee028ec095c04a8531d7d33899b7fed upstream.
This code used to copy in an unsigned long worth of data before
the sockptr_t conversion, so restore that.
Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/netrom')
| -rw-r--r-- | net/netrom/af_netrom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 6d16e1ab1a8a..eef0e3f2f25b 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -306,7 +306,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(unsigned int)) return -EINVAL; - if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) + if (copy_from_sockptr(&opt, optval, sizeof(unsigned long))) return -EFAULT; switch (optname) { |