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| author | Ingo Molnar <[email protected]> | 2025-05-21 06:42:51 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2025-05-21 06:45:03 +0000 |
| commit | 412751aa6991501d7defeadecfede59043d1b5e8 (patch) | |
| tree | ee5026e79128dd4eacb935f76564d7dcc105b24f /net/mctp/device.c | |
| parent | x86/xen/msr: Fix uninitialized variable 'err' (diff) | |
| parent | Linux 6.15-rc7 (diff) | |
| download | kernel-412751aa6991501d7defeadecfede59043d1b5e8.tar.gz kernel-412751aa6991501d7defeadecfede59043d1b5e8.zip | |
Merge tag 'v6.15-rc7' into x86/core, to pick up fixes
Pick up build fixes from upstream to make this tree more testable.
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'net/mctp/device.c')
| -rw-r--r-- | net/mctp/device.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/net/mctp/device.c b/net/mctp/device.c index 8e0724c56723..7c0dcf3df319 100644 --- a/net/mctp/device.c +++ b/net/mctp/device.c @@ -117,11 +117,18 @@ static int mctp_dump_addrinfo(struct sk_buff *skb, struct netlink_callback *cb) struct net_device *dev; struct ifaddrmsg *hdr; struct mctp_dev *mdev; - int ifindex, rc; + int ifindex = 0, rc; - hdr = nlmsg_data(cb->nlh); - // filter by ifindex if requested - ifindex = hdr->ifa_index; + /* Filter by ifindex if a header is provided */ + if (cb->nlh->nlmsg_len >= nlmsg_msg_size(sizeof(*hdr))) { + hdr = nlmsg_data(cb->nlh); + ifindex = hdr->ifa_index; + } else { + if (cb->strict_check) { + NL_SET_ERR_MSG(cb->extack, "mctp: Invalid header for addr dump request"); + return -EINVAL; + } + } rcu_read_lock(); for_each_netdev_dump(net, dev, mcb->ifindex) { |