Tracker / CVE-2026-52928
CVE-2026-52928
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.15 → 5.15.211 |
| linux | linux_kernel · 5.16 → 6.1.177 |
| linux | linux_kernel · 6.13 → 6.18.30 |
| linux | linux_kernel · 6.19 → 7.0.7 |
| linux | linux_kernel · 6.2 → 6.6.144 |
| linux | linux_kernel · 6.7 → 6.12.88 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.