Medium 5.5Published May 27, 2026

CVE-2026-45887af_unix: Fix memleak of newsk in unix_stream_connect().

Updated under an hour ago (Oct 27, 2026, 7:50 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix memleak of newsk in unix_stream_connect(). When prepare_peercred() fails in unix_stream_connect(), unix_release_sock() is not called for newsk, and the memory is leaked. Let's move prepare_peercred() before unix_create1().

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 27, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from fd0a109a0f6b7524543d17520da92a44a9f5343c before 365996a2b14d07caa9e33d367b67ea26c09d89b4; from fd0a109a0f6b7524543d17520da92a44a9f5343c before a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f; from fd0a109a0f6b7524543d17520da92a44a9f5343c before 6884028cd7f275f8bcb854a347265cb1fb0e4bea	CNA record
linux linux_kernel linux:linux_kernel	from 6.16 before 6.18.14; from 6.19 before 6.19.4	NVD

References

References

https://git.kernel.org/stable/c/365996a2b14d07caa9e33d367b67ea26c09d89b4	patch
https://git.kernel.org/stable/c/a5d95d7caba0160fb7b2b8d2bd96d5a1be861d9f	patch
https://git.kernel.org/stable/c/6884028cd7f275f8bcb854a347265cb1fb0e4bea	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.