CVEvulnerability
CVE-2026-31431
CISA Known Exploited Vulnerability
Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability — Linux Kernel
Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.
- Added to KEV
- 2026-05-01
- Remediation due
- 2026-05-15
- Ransomware use
- Unknown
- Required action
- "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Notes
- https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/; https://xint.io/blog/copy-fail-linux-distributions#the-fix-6 ; https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/about/ ; https://nvd.nist.gov/vuln/detail/CVE-2026-31431
- Status
- Analyzed
- Published
- 2026-04-22
- Last modified
- 2026-09-08
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-1288, CWE-669
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.
Affected configurations
• linux linux kernel (>= 4.14 < 5.10.254)
• linux linux kernel (>= 5.11 < 5.15.204)
• linux linux kernel (>= 5.16 < 6.1.170)
• linux linux kernel (>= 6.2 < 6.6.137)
• linux linux kernel (>= 6.7 < 6.12.85)
• linux linux kernel (>= 6.13 < 6.18.22)
• linux linux kernel (>= 6.19 < 6.19.12)
• linux linux kernel 7.0
• redhat openshift container platform (>= 4.12 < 4.12.89)
• redhat openshift container platform (>= 4.13 < 4.13.66)
• redhat openshift container platform (>= 4.14 < 4.14.65)
• redhat openshift container platform (>= 4.15 < 4.15.64)
• redhat openshift container platform (>= 4.16 < 4.16.61)
• redhat openshift container platform (>= 4.17 < 4.17.53)
• redhat openshift container platform (>= 4.18 < 4.18.40)
• redhat openshift container platform (>= 4.19 < 4.19.30)
• redhat openshift container platform (>= 4.20 < 4.20.21)
• redhat openshift container platform (>= 4.21 < 4.21.14)
• redhat openshift container platform 4.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
• redhat enterprise linux aus 8.4
• redhat enterprise linux aus 8.6
• redhat enterprise linux eus 8.4
• redhat enterprise linux eus 9.4
• redhat enterprise linux eus 9.6
• redhat enterprise linux eus 10.0
• redhat enterprise linux tus 8.6
• redhat enterprise linux tus 8.8
• redhat enterprise linux update services for sap solutions 8.6
• redhat enterprise linux update services for sap solutions 8.8
• redhat enterprise linux update services for sap solutions 9.0
• redhat enterprise linux update services for sap solutions 9.2
• amazon amazon linux
• canonical ubuntu linux
• debian debian linux 11.0
• debian debian linux 12.0
• debian debian linux 13.0
• opensuse leap 15.3
• opensuse leap 15.4
• opensuse leap 15.5
• opensuse leap 15.6
• suse caas platform 4.0
• suse enterprise storage 6.0
• suse enterprise storage 7.0
• suse enterprise storage 7.1
• suse manager proxy 4.0
• suse manager proxy 4.1
• suse manager proxy 4.2
• suse manager proxy 4.3
• suse manager retail branch server 4.0
• suse manager retail branch server 4.1
• suse manager retail branch server 4.2
• suse manager retail branch server 4.3
• suse manager server 4.0
• suse manager server 4.1
• suse manager server 4.2
• suse manager server 4.3
• suse openstack cloud 9.0
… and 55 more
Related
References
- 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 Exploit, Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/29/25 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/29/26 Exploit, Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/10 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/11 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/12 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/14 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/15 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/16 Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/17 Mailing List
- http://www.openwall.com/lists/oss-security/2026/04/30/18 Exploit, Mailing List
- http://www.openwall.com/lists/oss-security/2026/04/30/2 Mailing List
- http://www.openwall.com/lists/oss-security/2026/04/30/20 Mailing List
- http://www.openwall.com/lists/oss-security/2026/04/30/5 Exploit, Mailing List, Patch
- http://www.openwall.com/lists/oss-security/2026/04/30/6 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/10 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/12 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/15 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/16 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/17 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/18 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/2 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/22 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/23 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/24 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/01/3 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/14 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/15 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/16 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/17 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/18 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/19 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/20 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/21 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/23 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/24 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/25 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/4 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/5 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/6 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/7 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/02/8 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/10 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/12 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/13 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/3 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/4 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/5 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/03/6 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/1 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/10 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/11 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/12 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/13 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/14 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/2 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/24 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/27 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/28 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/29 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/31 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/8 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/04/9 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/06/5 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/07/12 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/07/2 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/08/13 Mailing List
- http://www.openwall.com/lists/oss-security/2026/05/18/3 Mailing List
- https://copy.fail Exploit
- https://websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-write-to-root-69f38a4ccddd2db1f520f170 Exploit, Third Party Advisory
- https://www.kb.cert.org/vuls/id/260001 Third Party Advisory
- https://access.redhat.com/errata/RHSA-2026:13565 Third Party Advisory