CVE-2026-31431
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly r...
Published: 2026-04-22 · Last updated: 2026-05-21
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-669
Affected products
| Vendor | Product |
|---|---|
| amazon | amazon_linux, basesystem_module, caas_platform |
| arista | amazon_linux, basesystem_module, caas_platform |
| canonical | amazon_linux, basesystem_module, caas_platform |
| debian | amazon_linux, basesystem_module, caas_platform |
| linux | amazon_linux, basesystem_module, caas_platform |
| nixos | amazon_linux, basesystem_module, caas_platform |
| opensuse | amazon_linux, basesystem_module, caas_platform |
| redhat | amazon_linux, basesystem_module, caas_platform |
| siemens | amazon_linux, basesystem_module, caas_platform |
| suse | amazon_linux, basesystem_module, caas_platform |
| vmware | amazon_linux, basesystem_module, caas_platform |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-31431
- [Patch]https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c
- [Patch]https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc
- [Patch]https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667
- [Patch]https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82
- [Patch]https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b
- [Patch]https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
- [Patch]https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
- [Patch]https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/29/23
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/29/25
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/29/26
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/10
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/11
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/12
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/14
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/15
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/16
- [Other]http://www.openwall.com/lists/oss-security/2026/04/30/17
- [Exploit reference]http://www.openwall.com/lists/oss-security/2026/04/30/18
- [Other]http://www.openwall.com/lists/oss-security/2026/04/30/2
- [Other]http://www.openwall.com/lists/oss-security/2026/04/30/20
- [Patch]http://www.openwall.com/lists/oss-security/2026/04/30/5
- [Other]http://www.openwall.com/lists/oss-security/2026/04/30/6
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/10
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/12
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/15
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/16
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/17
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/18
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/2
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/22
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/23
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/24
- [Other]http://www.openwall.com/lists/oss-security/2026/05/01/3
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/14
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/15
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/16
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/17
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/18
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/19
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/20
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/21
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/23
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/24
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/25
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/4
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/5
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/6
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/7
- [Other]http://www.openwall.com/lists/oss-security/2026/05/02/8
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/10
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/12
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/13
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/3
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/4
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/5
- [Other]http://www.openwall.com/lists/oss-security/2026/05/03/6
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/1
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/10
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/11
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/12
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/13
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/14
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/2
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/24
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/27
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/28
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/29
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/31
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/8
- [Other]http://www.openwall.com/lists/oss-security/2026/05/04/9
- [Other]http://www.openwall.com/lists/oss-security/2026/05/06/5
- [Other]http://www.openwall.com/lists/oss-security/2026/05/07/12
- [Other]http://www.openwall.com/lists/oss-security/2026/05/07/2
- [Other]http://www.openwall.com/lists/oss-security/2026/05/08/13
- [Other]http://www.openwall.com/lists/oss-security/2026/05/18/3
- [Exploit reference]https://copy.fail
- [Exploit reference]https://websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-write-to-root-69f38a4ccddd2db1f520f170
- [Other]https://www.kb.cert.org/vuls/id/260001
- [Other]https://access.redhat.com/security/cve/cve-2026-31431#cve-details-mitigation
- [Other]https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- [Other]https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- [Exploit reference]https://github.com/theori-io/copy-fail-CVE-2026-31431
- [Vendor advisory]https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/
- [Other]https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-31431
- [Patch]https://xint.io/blog/copy-fail-linux-distributions#the-fix-6
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