CVE-2026-45857
In the Linux kernel, the following vulnerability has been resolved: scsi: csiostor: Fix dereference of null pointer rn The error exit path when rn is NULL ends up deferencing the null pointer rn via the use of the macro CSIO_INC_STATS. Fix this by adding a new error return path label after the use of the macro to avoid the deference.
Affected versions
Linux kernel versions
3.8
and later are affected. Fixed in
5.10.252,
5.15.202,
6.1.165,
6.6.128,
6.12.75,
6.18.14,
6.19.4,
7.0
and their respective stable series.
References
The following references provide additional information about CVE-2026-45857 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
PatchKernel patch commithttps://git.kernel.org/stable/c/16ccbfddcb32365138c806cf572e69b42a193c5c
-
PatchKernel patch commithttps://git.kernel.org/stable/c/1982257570b84dc33753d536dd969fd357a014e9
-
PatchKernel patch commithttps://git.kernel.org/stable/c/25ab5e97d3c5f3ed594b4a65d1cc99dc24756681
Frequently asked questions
-
What is CVE-2026-45857?
CVE-2026-45857 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 3.8 onward and has been patched in 5.10.252, 5.15.202, 6.1.165 and others. CVE-2026-45857 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
Is there a patch available for CVE-2026-45857?
Yes — CVE-2026-45857 has been patched. Fixed versions include 5.10.252, 5.15.202, 6.1.165 and others. If you are running Linux kernel 3.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2026-45857 actively exploited?
No — CVE-2026-45857 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.