CVE-2026-31431

KEV

🔴 Łataj teraz

Błąd w jądrze Linuxa w algif_aead umożliwia nieprawidłowe operacje na danych.

CVSS

7.8

EPSS

2.6%

Exploit

weaponized

Vendor

linux

Opis źródłowy (NVD)

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.

exploit Brak patcha

Źródła i daty

Źródło	Wartość
NVD – CVSS	7.8
CISA KEV (aktywnie wykorzystywane)	Tak
FIRST EPSS (prawdopodobieństwo exploita)	2.6%
Opublikowano (NVD)	2026-04-22 09:16:21 UTC
Ostatnia modyfikacja (NVD)	2026-05-01 23:16:17 UTC

Referencje

https://git.kernel.org/stable/c/19d43105a97be0810edbda875f2cd03f30dc130c (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/3115af9644c342b356f3f07a4dd1c8905cd9a6fc (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/893d22e0135fa394db81df88697fba6032747667 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/8b88d99341f139e23bdeb1027a2a3ae10d341d82 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/961cfa271a918ad4ae452420e7c303149002875b (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/a664bf3d603dc3bdcf9ae47cc21e0daec706d7a5 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/ce42ee423e58dffa5ec03524054c9d8bfd4f6237 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
https://git.kernel.org/stable/c/fafe0fa2995a0f7073c1c358d7d3145bcc9aedd8 (416baaa9-dc9f-4396-8d5f-8c081fb06d67) [Patch]
http://www.openwall.com/lists/oss-security/2026/04/29/23 (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/29/25 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/29/26 (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/10 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/11 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/12 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/14 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/15 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/16 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/17 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
http://www.openwall.com/lists/oss-security/2026/04/30/18 (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Mailing List]
http://www.openwall.com/lists/oss-security/2026/04/30/2 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
http://www.openwall.com/lists/oss-security/2026/04/30/20 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
http://www.openwall.com/lists/oss-security/2026/04/30/5 (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Mailing List, Patch]
http://www.openwall.com/lists/oss-security/2026/04/30/6 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
http://www.openwall.com/lists/oss-security/2026/05/01/10 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/12 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/15 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/16 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/17 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/18 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/2 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
http://www.openwall.com/lists/oss-security/2026/05/01/22 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/23 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/24 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2026/05/01/3 (af854a3a-2127-422b-91ae-364da2661108) [Mailing List]
https://copy.fail (af854a3a-2127-422b-91ae-364da2661108) [Exploit]
https://websec.net/blog/cve-2026-31431-linux-algifaead-page-cache-write-to-root-69f38a4ccddd2db1f520f170 (af854a3a-2127-422b-91ae-364da2661108) [Exploit, Third Party Advisory]
https://access.redhat.com/security/cve/cve-2026-31431#cve-details-mitigation (134c704f-9b21-4f2e-91b3-4a467353bcc0)
https://github.com/theori-io/copy-fail-CVE-2026-31431 (134c704f-9b21-4f2e-91b3-4a467353bcc0) [Exploit]
https://lore.kernel.org/linux-cve-announce/2026042214-CVE-2026-31431-3d65@gregkh/ (134c704f-9b21-4f2e-91b3-4a467353bcc0)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-31431 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
https://xint.io/blog/copy-fail-linux-distributions#the-fix-6 (134c704f-9b21-4f2e-91b3-4a467353bcc0)