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(parent: b69c5b5) | patch
ax25: uninitialized variable in ax25_setsockopt()
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 7 Jan 2022 07:13:12 +0000 (10:13 +0300)
committerDavid S. Miller <davem@davemloft.net>
Fri, 7 Jan 2022 14:10:26 +0000 (14:10 +0000)
commit9371937092d5fd502032c1bb4475b36b39b1f1b3
tree0877e10b928746b1f3c0c09628475a6dd471e859tree | snapshot
parentb69c5b5886f3986f94ded29896211d520c57aea1commit | diff
ax25: uninitialized variable in ax25_setsockopt()

The "opt" variable is unsigned long but we only copy 4 bytes from
the user so the lower 4 bytes are uninitialized.

I have changed the integer overflow checks from ULONG to UINT as well.
This is a slight API change but I don't expect it to break anything.

Fixes: a7b75c5a8c41 ("net: pass a sockptr_t into ->setsockopt")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ax25/af_ax25.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git