netlink: Bounds-check struct nlmsgerr creation
CVE-2022-49766 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49766, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.
In the Linux kernel, the following vulnerability has been resolved: netlink: Bounds-check struct nlmsgerr creation In preparation for FORTIFY_SOURCE doing bounds-check on memcpy(), switch from __nlmsg_put to nlmsg_put(), and explain the bounds check for dealing with the memcpy() across a composite flexible array struct. Avoids this future run-time warning: memcpy: detected field-spanning write (size 32) of single field "&errmsg->msg" at net/netlink/af_netlink.c:2447 (size 16)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.0.10-1 | DEBIAN-CVE-2022-49766 | May 1, 2025 |
| linux · Debian 13.5 (trixie) | 6.0.10-1 | DEBIAN-CVE-2022-49766 | May 1, 2025 |
| linux · Debian 14 | 6.0.10-1 | DEBIAN-CVE-2022-49766 | May 1, 2025 |
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