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| author | Ulrich Drepper <drepper@redhat.com> | 2006-05-19 07:55:24 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2006-05-19 07:55:24 +0000 |
| commit | 429bb1833efe87af5b75153b6c7fa9349cfff501 (patch) | |
| tree | 79e96971dad10d1f78d7c05b1aec9565e725df24 | |
| parent | f90de83143e5c0b9ba049323493a6fd5112e9991 (diff) | |
| download | glibc-429bb1833efe87af5b75153b6c7fa9349cfff501.tar.gz glibc-429bb1833efe87af5b75153b6c7fa9349cfff501.tar.xz glibc-429bb1833efe87af5b75153b6c7fa9349cfff501.zip | |
* sysdeps/unix/sysv/linux/ifaddrs.c (__netlink_sendreq): Make sure
no uninitialized memory is passed to sendto.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/ifaddrs.c | 5 |
2 files changed, 9 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog index 23110ba7ef..cab8422e52 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2006-05-19 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/unix/sysv/linux/ifaddrs.c (__netlink_sendreq): Make sure + no uninitialized memory is passed to sendto. + 2006-05-18 Ulrich Drepper <drepper@redhat.com> * nis/nis_callback.c (__nis_create_callback): Use asprinf instead diff --git a/sysdeps/unix/sysv/linux/ifaddrs.c b/sysdeps/unix/sysv/linux/ifaddrs.c index e6720f0ca2..82495de03e 100644 --- a/sysdeps/unix/sysv/linux/ifaddrs.c +++ b/sysdeps/unix/sysv/linux/ifaddrs.c @@ -89,10 +89,11 @@ __netlink_free_handle (struct netlink_handle *h) static int __netlink_sendreq (struct netlink_handle *h, int type) { - struct + struct req { struct nlmsghdr nlh; struct rtgenmsg g; + char pad[0]; } req; struct sockaddr_nl nladdr; @@ -105,6 +106,8 @@ __netlink_sendreq (struct netlink_handle *h, int type) req.nlh.nlmsg_pid = 0; req.nlh.nlmsg_seq = h->seq; req.g.rtgen_family = AF_UNSPEC; + if (sizeof (req) != offsetof (struct req, pad)) + memset (req.pad, '\0', sizeof (req) - offsetof (struct req, pad)); memset (&nladdr, '\0', sizeof (nladdr)); nladdr.nl_family = AF_NETLINK; |