CVE-2026-98394
af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer. Fahad Alharbi reported that recv(0, MSG_PEEK) triggers busy-wait in unix_stream_read_generic() if recv() is blocking and the last skb in the queue is MSG_OOB skb. In such a situation, TCP returns 0 immediately regardless of blocking or non-blocking. Let's follow the behaviour.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 14, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
314001f0bf927015e459c9d387d62a231fe93af3 < 3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713 314001f0bf927015e459c9d387d62a231fe93af3 < d5dd55b316ca229a4cbf11729483ba5bb57233e7 314001f0bf927015e459c9d387d62a231fe93af3 < c81c5be3826c8467945b964d0cf7f7b3d65461db 314001f0bf927015e459c9d387d62a231fe93af3 < 6e5ee08eb5858d175da6768d75d163817b6a9d4a
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713 git.kernel.org: https://git.kernel.org/stable/c/d5dd55b316ca229a4cbf11729483ba5bb57233e7 git.kernel.org: https://git.kernel.org/stable/c/c81c5be3826c8467945b964d0cf7f7b3d65461db git.kernel.org: https://git.kernel.org/stable/c/6e5ee08eb5858d175da6768d75d163817b6a9d4a