CVE-2026-31431
Assigned by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
Weaknesses (CWE)
CWE-669 — Incorrect Resource Transfer Between Spheres
Some image editors modify a JPEG image, but the original EXIF thumbnail image is left intact within the JPEG. (Also an interaction error).Some image editors modify a JPEG image, but the original EXIF thumbnail image is left intact within the JPEG. (Also an interaction error).
CVSS
7.8
Base Score: 7.8/10 HIGH
Exploitability: 1.8/10
Impact: 5.9/10
Access Vector
- Availability: HIGH
- Confidentiality: HIGH
- Integrity: HIGH
Impact
Attack Patterns (CAPEC)
References
https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c
https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc
https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667
https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82
https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b
https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5
https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237
https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8
http://www.openwall.com/lists/oss-security/2026/04/29/23
http://www.openwall.com/lists/oss-security/2026/04/29/25
http://www.openwall.com/lists/oss-security/2026/04/29/26
http://www.openwall.com/lists/oss-security/2026/04/30/10
http://www.openwall.com/lists/oss-security/2026/04/30/11
http://www.openwall.com/lists/oss-security/2026/04/30/12
http://www.openwall.com/lists/oss-security/2026/04/30/14
http://www.openwall.com/lists/oss-security/2026/04/30/15
http://www.openwall.com/lists/oss-security/2026/04/30/16
http://www.openwall.com/lists/oss-security/2026/04/30/17
http://www.openwall.com/lists/oss-security/2026/04/30/18
http://www.openwall.com/lists/oss-security/2026/04/30/2
http://www.openwall.com/lists/oss-security/2026/04/30/20
http://www.openwall.com/lists/oss-security/2026/04/30/5
http://www.openwall.com/lists/oss-security/2026/04/30/6
http://www.openwall.com/lists/oss-security/2026/05/01/10
http://www.openwall.com/lists/oss-security/2026/05/01/12
http://www.openwall.com/lists/oss-security/2026/05/01/15
http://www.openwall.com/lists/oss-security/2026/05/01/16
http://www.openwall.com/lists/oss-security/2026/05/01/17
http://www.openwall.com/lists/oss-security/2026/05/01/18
http://www.openwall.com/lists/oss-security/2026/05/01/2
http://www.openwall.com/lists/oss-security/2026/05/01/22
http://www.openwall.com/lists/oss-security/2026/05/01/23
http://www.openwall.com/lists/oss-security/2026/05/01/24
http://www.openwall.com/lists/oss-security/2026/05/01/3
http://www.openwall.com/lists/oss-security/2026/05/02/14
http://www.openwall.com/lists/oss-security/2026/05/02/15
http://www.openwall.com/lists/oss-security/2026/05/02/16
http://www.openwall.com/lists/oss-security/2026/05/02/17
http://www.openwall.com/lists/oss-security/2026/05/02/18
http://www.openwall.com/lists/oss-security/2026/05/02/19
http://www.openwall.com/lists/oss-security/2026/05/02/20
http://www.openwall.com/lists/oss-security/2026/05/02/21
http://www.openwall.com/lists/oss-security/2026/05/02/23
http://www.openwall.com/lists/oss-security/2026/05/02/24
http://www.openwall.com/lists/oss-security/2026/05/02/25
http://www.openwall.com/lists/oss-security/2026/05/02/4
http://www.openwall.com/lists/oss-security/2026/05/02/5
http://www.openwall.com/lists/oss-security/2026/05/02/6
http://www.openwall.com/lists/oss-security/2026/05/02/7
http://www.openwall.com/lists/oss-security/2026/05/02/8
http://www.openwall.com/lists/oss-security/2026/05/03/10
http://www.openwall.com/lists/oss-security/2026/05/03/12
http://www.openwall.com/lists/oss-security/2026/05/03/13
http://www.openwall.com/lists/oss-security/2026/05/03/3
http://www.openwall.com/lists/oss-security/2026/05/03/4
http://www.openwall.com/lists/oss-security/2026/05/03/5
http://www.openwall.com/lists/oss-security/2026/05/03/6
http://www.openwall.com/lists/oss-security/2026/05/04/1
http://www.openwall.com/lists/oss-security/2026/05/04/2
https://copy.fail
https://websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-write-to-root-69f38a4ccddd2db1f520f170
https://access.redhat.com/security/cve/cve-2026-31431#cve-details-mitigation
https://github.com/theori-io/copy-fail-CVE-2026-31431
https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-31431
https://xint.io/blog/copy-fail-linux-distributions#the-fix-6