--- title: "CVE-2026-31431: crypto: algif_aead - Revert to operating… | CubePath" description: "In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit…" language: en source: https://cubepath.com/security/cve/CVE-2026-31431 --- # CVE-2026-31431: crypto: algif_aead - Revert to operating… | CubePath ## Description In the Linux kernel, the following vulnerability has been resolved: crypto: algif\_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif\_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. Official description from the CVE record, published by Linux. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-31431) ## Key data ### CVSS 3.1 High 7.8 Score published by Linux in the CVE record. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Local | The attacker needs local access to the system, or to trick a user into running something. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | ### CVSS 3.1 High 7.8 Score published by redhat-SADP in the CVE record. CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------------- | | Attack vector | Local | The attacker needs local access to the system, or to trick a user into running something. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | High | Serious or total effect on the secrecy of data. | | Integrity impact | High | Serious or total effect on the trustworthiness of data. | | Availability impact | High | Serious or total effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.98114 (98.1% probability) Percentile 99.9% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA Known Exploited Vulnerabilities This CVE is listed in the CISA KEV catalog. Name in the catalog Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability Added to the catalog May 1, 2026 Federal due date May 15, 2026 ### CISA assessment as of Apr 29, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Recorded by CISA as active Automatable no Technical impact total ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-669](https://cwe.mitre.org/data/definitions/669.html) Incorrect Resource Transfer Between Spheres - [CWE-1288](https://cwe.mitre.org/data/definitions/1288.html) Improper Validation of Consistency within Input ## Affected products Products listed in the CVE record, as the CNA published them. - Linux - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before 893d22e0135fa394db81df88697fba6032747667 - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before 19d43105a97be0810edbda875f2cd03f30dc130c - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before 961cfa271a918ad4ae452420e7c303149002875b - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before 3115af9644c342b356f3f07a4dd1c8905cd9a6fc - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before 8b88d99341f139e23bdeb1027a2a3ae10d341d82 - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8 - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before ce42ee423e58dffa5ec03524054c9d8bfd4f6237 - affected: 72548b093ee38a6d4f2a19e6ef1948ae05c181f7 up to before a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 - Linux - affected: 4.14 - unaffected: before 4.14 - unaffected: 5.10.254 up to 5.10.\* - unaffected: 5.15.204 up to 5.15.\* - unaffected: 6.1.170 up to 6.1.\* - unaffected: 6.6.137 up to 6.6.\* - unaffected: 6.12.85 up to 6.12.\* - unaffected: 6.18.22 up to 6.18.\* - unaffected: 6.19.12 up to 6.19.\* - unaffected: 7.0 up to \* ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [git.kernel.org/stable/c/893d22e0135fa394db81df88697fba60327…](https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667) - [git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30d…](https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c) - [git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c30314900…](https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b) - [git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd…](https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc) - [git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d3…](https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82) - [git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9…](https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8) - [git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4…](https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237) - [git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec70…](https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5) - [openwall.com/lists/oss-security/2026/04/29/23](http://www.openwall.com/lists/oss-security/2026/04/29/23) - [copy.fail](https://copy.fail) - [openwall.com/lists/oss-security/2026/04/29/25](http://www.openwall.com/lists/oss-security/2026/04/29/25) - [openwall.com/lists/oss-security/2026/04/29/26](http://www.openwall.com/lists/oss-security/2026/04/29/26) - [openwall.com/lists/oss-security/2026/04/30/2](http://www.openwall.com/lists/oss-security/2026/04/30/2) - [openwall.com/lists/oss-security/2026/04/30/5](http://www.openwall.com/lists/oss-security/2026/04/30/5) - [openwall.com/lists/oss-security/2026/04/30/6](http://www.openwall.com/lists/oss-security/2026/04/30/6) - [openwall.com/lists/oss-security/2026/04/30/10](http://www.openwall.com/lists/oss-security/2026/04/30/10) - [openwall.com/lists/oss-security/2026/04/30/11](http://www.openwall.com/lists/oss-security/2026/04/30/11) - [openwall.com/lists/oss-security/2026/04/30/12](http://www.openwall.com/lists/oss-security/2026/04/30/12) - [openwall.com/lists/oss-security/2026/04/30/14](http://www.openwall.com/lists/oss-security/2026/04/30/14) - [openwall.com/lists/oss-security/2026/04/30/15](http://www.openwall.com/lists/oss-security/2026/04/30/15) - [openwall.com/lists/oss-security/2026/04/30/16](http://www.openwall.com/lists/oss-security/2026/04/30/16) - [openwall.com/lists/oss-security/2026/04/30/17](http://www.openwall.com/lists/oss-security/2026/04/30/17) - [openwall.com/lists/oss-security/2026/04/30/18](http://www.openwall.com/lists/oss-security/2026/04/30/18) - [websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-w…](https://websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-write-to-root-69f38a4ccddd2db1f520f170) - [openwall.com/lists/oss-security/2026/04/30/20](http://www.openwall.com/lists/oss-security/2026/04/30/20) - [openwall.com/lists/oss-security/2026/05/01/2](http://www.openwall.com/lists/oss-security/2026/05/01/2) - [openwall.com/lists/oss-security/2026/05/01/3](http://www.openwall.com/lists/oss-security/2026/05/01/3) - [openwall.com/lists/oss-security/2026/05/01/10](http://www.openwall.com/lists/oss-security/2026/05/01/10) - [openwall.com/lists/oss-security/2026/05/01/12](http://www.openwall.com/lists/oss-security/2026/05/01/12) - [openwall.com/lists/oss-security/2026/05/01/15](http://www.openwall.com/lists/oss-security/2026/05/01/15) - [openwall.com/lists/oss-security/2026/05/01/16](http://www.openwall.com/lists/oss-security/2026/05/01/16) - [openwall.com/lists/oss-security/2026/05/01/17](http://www.openwall.com/lists/oss-security/2026/05/01/17) - [openwall.com/lists/oss-security/2026/05/01/18](http://www.openwall.com/lists/oss-security/2026/05/01/18) - [openwall.com/lists/oss-security/2026/05/01/22](http://www.openwall.com/lists/oss-security/2026/05/01/22) - [openwall.com/lists/oss-security/2026/05/01/23](http://www.openwall.com/lists/oss-security/2026/05/01/23) - [openwall.com/lists/oss-security/2026/05/01/24](http://www.openwall.com/lists/oss-security/2026/05/01/24) - [openwall.com/lists/oss-security/2026/05/02/4](http://www.openwall.com/lists/oss-security/2026/05/02/4) - [openwall.com/lists/oss-security/2026/05/02/5](http://www.openwall.com/lists/oss-security/2026/05/02/5) - [openwall.com/lists/oss-security/2026/05/02/6](http://www.openwall.com/lists/oss-security/2026/05/02/6) - [openwall.com/lists/oss-security/2026/05/02/7](http://www.openwall.com/lists/oss-security/2026/05/02/7) - [openwall.com/lists/oss-security/2026/05/02/8](http://www.openwall.com/lists/oss-security/2026/05/02/8) - [openwall.com/lists/oss-security/2026/05/02/14](http://www.openwall.com/lists/oss-security/2026/05/02/14) - [openwall.com/lists/oss-security/2026/05/02/15](http://www.openwall.com/lists/oss-security/2026/05/02/15) - [openwall.com/lists/oss-security/2026/05/02/16](http://www.openwall.com/lists/oss-security/2026/05/02/16) - [openwall.com/lists/oss-security/2026/05/02/17](http://www.openwall.com/lists/oss-security/2026/05/02/17) - [openwall.com/lists/oss-security/2026/05/02/18](http://www.openwall.com/lists/oss-security/2026/05/02/18) - [openwall.com/lists/oss-security/2026/05/02/19](http://www.openwall.com/lists/oss-security/2026/05/02/19) - [openwall.com/lists/oss-security/2026/05/02/20](http://www.openwall.com/lists/oss-security/2026/05/02/20) - [openwall.com/lists/oss-security/2026/05/02/21](http://www.openwall.com/lists/oss-security/2026/05/02/21) - [openwall.com/lists/oss-security/2026/05/02/23](http://www.openwall.com/lists/oss-security/2026/05/02/23) - [openwall.com/lists/oss-security/2026/05/02/24](http://www.openwall.com/lists/oss-security/2026/05/02/24) - [openwall.com/lists/oss-security/2026/05/02/25](http://www.openwall.com/lists/oss-security/2026/05/02/25) - [openwall.com/lists/oss-security/2026/05/03/3](http://www.openwall.com/lists/oss-security/2026/05/03/3) - [openwall.com/lists/oss-security/2026/05/03/4](http://www.openwall.com/lists/oss-security/2026/05/03/4) - [openwall.com/lists/oss-security/2026/05/03/10](http://www.openwall.com/lists/oss-security/2026/05/03/10) - [openwall.com/lists/oss-security/2026/05/03/5](http://www.openwall.com/lists/oss-security/2026/05/03/5) - [openwall.com/lists/oss-security/2026/05/03/6](http://www.openwall.com/lists/oss-security/2026/05/03/6) - [openwall.com/lists/oss-security/2026/05/03/12](http://www.openwall.com/lists/oss-security/2026/05/03/12) - [openwall.com/lists/oss-security/2026/05/03/13](http://www.openwall.com/lists/oss-security/2026/05/03/13) - [openwall.com/lists/oss-security/2026/05/04/1](http://www.openwall.com/lists/oss-security/2026/05/04/1) - [openwall.com/lists/oss-security/2026/05/04/2](http://www.openwall.com/lists/oss-security/2026/05/04/2) - [openwall.com/lists/oss-security/2026/05/04/10](http://www.openwall.com/lists/oss-security/2026/05/04/10) - [openwall.com/lists/oss-security/2026/05/04/11](http://www.openwall.com/lists/oss-security/2026/05/04/11) - [openwall.com/lists/oss-security/2026/05/04/12](http://www.openwall.com/lists/oss-security/2026/05/04/12) - [openwall.com/lists/oss-security/2026/05/04/13](http://www.openwall.com/lists/oss-security/2026/05/04/13) - [openwall.com/lists/oss-security/2026/05/04/14](http://www.openwall.com/lists/oss-security/2026/05/04/14) - [openwall.com/lists/oss-security/2026/05/04/8](http://www.openwall.com/lists/oss-security/2026/05/04/8) - [openwall.com/lists/oss-security/2026/05/04/9](http://www.openwall.com/lists/oss-security/2026/05/04/9) - [openwall.com/lists/oss-security/2026/05/04/24](http://www.openwall.com/lists/oss-security/2026/05/04/24) - [openwall.com/lists/oss-security/2026/05/04/27](http://www.openwall.com/lists/oss-security/2026/05/04/27) - [openwall.com/lists/oss-security/2026/05/04/28](http://www.openwall.com/lists/oss-security/2026/05/04/28) - [openwall.com/lists/oss-security/2026/05/04/29](http://www.openwall.com/lists/oss-security/2026/05/04/29) - [openwall.com/lists/oss-security/2026/05/04/31](http://www.openwall.com/lists/oss-security/2026/05/04/31) - [openwall.com/lists/oss-security/2026/05/06/5](http://www.openwall.com/lists/oss-security/2026/05/06/5) - [openwall.com/lists/oss-security/2026/05/07/2](http://www.openwall.com/lists/oss-security/2026/05/07/2) - [openwall.com/lists/oss-security/2026/05/07/12](http://www.openwall.com/lists/oss-security/2026/05/07/12) - [openwall.com/lists/oss-security/2026/05/08/13](http://www.openwall.com/lists/oss-security/2026/05/08/13) - [kb.cert.org/vuls/id/260001](https://www.kb.cert.org/vuls/id/260001) - [openwall.com/lists/oss-security/2026/05/18/3](http://www.openwall.com/lists/oss-security/2026/05/18/3) ## Timeline 1. ID reserved Mar 9, 2026 2. Record published Apr 22, 2026 3. Added to CISA KEV May 1, 2026 4. Record last updated Oct 15, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:10 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)