CVE-2026-31431
crypto: algif_aead - Revert to operating out-of-place
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 for the CVE license. View the record on cve.org
Key data
CVSS 3.1 High 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
| 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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
| 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.
EPSS
- Score
- 0.98114 (98.1% probability)
- Percentile
- 99.9%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
CISA Known Exploited Vulnerabilities
- 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
- Exploitation
- Recorded by CISA as active
- Automatable
- no
- Technical impact
- total
Weakness (CWE)
Affected products
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
- git.kernel.org/stable/c/893d22e0135fa394db81df88697fba60327…
- git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30d…
- git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c30314900…
- git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd…
- git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d3…
- git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9…
- git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4…
- git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec70…
- openwall.com/lists/oss-security/2026/04/29/23
- copy.fail
- openwall.com/lists/oss-security/2026/04/29/25
- openwall.com/lists/oss-security/2026/04/29/26
- openwall.com/lists/oss-security/2026/04/30/2
- openwall.com/lists/oss-security/2026/04/30/5
- openwall.com/lists/oss-security/2026/04/30/6
- openwall.com/lists/oss-security/2026/04/30/10
- openwall.com/lists/oss-security/2026/04/30/11
- openwall.com/lists/oss-security/2026/04/30/12
- openwall.com/lists/oss-security/2026/04/30/14
- openwall.com/lists/oss-security/2026/04/30/15
- openwall.com/lists/oss-security/2026/04/30/16
- openwall.com/lists/oss-security/2026/04/30/17
- openwall.com/lists/oss-security/2026/04/30/18
- websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-w…
- openwall.com/lists/oss-security/2026/04/30/20
- openwall.com/lists/oss-security/2026/05/01/2
- openwall.com/lists/oss-security/2026/05/01/3
- openwall.com/lists/oss-security/2026/05/01/10
- openwall.com/lists/oss-security/2026/05/01/12
- openwall.com/lists/oss-security/2026/05/01/15
- openwall.com/lists/oss-security/2026/05/01/16
- openwall.com/lists/oss-security/2026/05/01/17
- openwall.com/lists/oss-security/2026/05/01/18
- openwall.com/lists/oss-security/2026/05/01/22
- openwall.com/lists/oss-security/2026/05/01/23
- openwall.com/lists/oss-security/2026/05/01/24
- openwall.com/lists/oss-security/2026/05/02/4
- openwall.com/lists/oss-security/2026/05/02/5
- openwall.com/lists/oss-security/2026/05/02/6
- openwall.com/lists/oss-security/2026/05/02/7
- openwall.com/lists/oss-security/2026/05/02/8
- openwall.com/lists/oss-security/2026/05/02/14
- openwall.com/lists/oss-security/2026/05/02/15
- openwall.com/lists/oss-security/2026/05/02/16
- openwall.com/lists/oss-security/2026/05/02/17
- openwall.com/lists/oss-security/2026/05/02/18
- openwall.com/lists/oss-security/2026/05/02/19
- openwall.com/lists/oss-security/2026/05/02/20
- openwall.com/lists/oss-security/2026/05/02/21
- openwall.com/lists/oss-security/2026/05/02/23
- openwall.com/lists/oss-security/2026/05/02/24
- openwall.com/lists/oss-security/2026/05/02/25
- openwall.com/lists/oss-security/2026/05/03/3
- openwall.com/lists/oss-security/2026/05/03/4
- openwall.com/lists/oss-security/2026/05/03/10
- openwall.com/lists/oss-security/2026/05/03/5
- openwall.com/lists/oss-security/2026/05/03/6
- openwall.com/lists/oss-security/2026/05/03/12
- openwall.com/lists/oss-security/2026/05/03/13
- openwall.com/lists/oss-security/2026/05/04/1
- openwall.com/lists/oss-security/2026/05/04/2
- openwall.com/lists/oss-security/2026/05/04/10
- openwall.com/lists/oss-security/2026/05/04/11
- openwall.com/lists/oss-security/2026/05/04/12
- openwall.com/lists/oss-security/2026/05/04/13
- openwall.com/lists/oss-security/2026/05/04/14
- openwall.com/lists/oss-security/2026/05/04/8
- openwall.com/lists/oss-security/2026/05/04/9
- openwall.com/lists/oss-security/2026/05/04/24
- openwall.com/lists/oss-security/2026/05/04/27
- openwall.com/lists/oss-security/2026/05/04/28
- openwall.com/lists/oss-security/2026/05/04/29
- openwall.com/lists/oss-security/2026/05/04/31
- openwall.com/lists/oss-security/2026/05/06/5
- openwall.com/lists/oss-security/2026/05/07/2
- openwall.com/lists/oss-security/2026/05/07/12
- openwall.com/lists/oss-security/2026/05/08/13
- kb.cert.org/vuls/id/260001
- openwall.com/lists/oss-security/2026/05/18/3
Timeline
- ID reserved
- Record published
- Added to CISA KEV
- Record last updated
Look up another CVE
About CubePath
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