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Vulnerability record · CVE-2026-43078 · published 6 May 2026

CVE-2026-43078: Linux kernel out-of-bounds write vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.6% CWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/2b781d1d4f933990318bcc5c68fb75a717379e42 Patch
https://git.kernel.org/stable/c/31d00156e50ecad37f2cb6cbf04aaa9a260505ef Patch
https://git.kernel.org/stable/c/710a4ce5d7afd9fe082c75dec282ab4a11c0fe71 Patch
https://git.kernel.org/stable/c/9532501e0f1b200ea80baa0e33e0b06da10bb271 Patch
https://git.kernel.org/stable/c/c8369a6d62f5abde9cbd4b62c45bf4b996be2468 Patch
https://git.kernel.org/stable/c/dea5fcf085f977b6c2de1b2d4ec4767b6c840d1f Patch
https://git.kernel.org/stable/c/f7826bc0b39928a4a22f6b815dd9940b22a63503 Patch
https://git.kernel.org/stable/c/fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51e Patch

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Source: NIST National Vulnerability Database (record CVE-2026-43078), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.