Vulnerability-Lookup

BDU:2024-03651 (CVE-2024-26641)

Vulnerability from fstec – Published: 2024-05-15 – Updated: 2025-05-06 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции __ip6_tnl_rcv() в модуле net/ipv6/ip6_tunnel.c реализации протокола IPv6 ядра операционной системы Linux, позволяющая нарушителю раскрыть защищаемую информацию или вызвать отказ в обслуживании

Summary

Уязвимость функции __ip6_tnl_rcv() в модуле net/ipv6/ip6_tunnel.c реализации протокола IPv6 ядра операционной системы Linux связана с использование неинициализированной памяти. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, раскрыть защищаемую информацию или вызвать отказ в обслуживании

Severity

9.4 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:C/I:N/A:C

9.1 (Critical) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-457 - Использование неинициализированной переменной

Aliases

CVE-2024-26641

References

39 references

URL
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26641
https://git.kernel.org/linus/8d975c15c0cd744000ca386247432d57b21f9df0
https://git.kernel.org/stable/c/350a6640fac4b53564ec20aa3f4a0922cb0ba5e6
https://git.kernel.org/stable/c/8d975c15c0cd744000ca386247432d57b21f9df0
https://git.kernel.org/stable/c/a9bc32879a08f23cdb80a48c738017e39aea1080
https://git.kernel.org/stable/c/af6b5c50d47ab43e5272ad61935d0ed2e264d3f0
https://git.kernel.org/stable/c/c835df3bcc14858ae9b27315dd7de76370b94f3a
https://git.kernel.org/stable/c/d54e4da98bbfa8c257bdca94c49652d81d18a4d8
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210
https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16
https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4
https://lore.kernel.org/linux-cve-announce/20240318102117.2839904-12-lee@kernel.org/
https://ubuntu.com/security/notices/USN-6765-1
https://ubuntu.com/security/notices/USN-6766-1
https://ubuntu.com/security/notices/USN-6766-2
https://ubuntu.com/security/notices/USN-6766-3
https://ubuntu.com/security/notices/USN-6795-1
https://ubuntu.com/security/notices/USN-6818-1
https://ubuntu.com/security/notices/USN-6818-2
https://ubuntu.com/security/notices/USN-6818-3
https://ubuntu.com/security/notices/USN-6818-4
https://ubuntu.com/security/notices/USN-6819-1
https://ubuntu.com/security/notices/USN-6819-2
https://ubuntu.com/security/notices/USN-6819-3
https://ubuntu.com/security/notices/USN-6819-4
https://ubuntu.com/security/notices/USN-6828-1
https://ubuntu.com/security/notices/USN-7069-1
https://ubuntu.com/security/notices/USN-7069-2
https://ubuntu.com/security/notices/USN-7088-1
https://ubuntu.com/security/notices/USN-7088-2
https://ubuntu.com/security/notices/USN-7088-3
https://ubuntu.com/security/notices/USN-7088-4
https://www.cve.org/CVERecord?id=CVE-2024-26641
https://поддержка.нппкт.рф/bin/view/ОСнова/Обновления/2.10.1/
https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17
https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47

Impacted products

4 products from 4 vendors

Vendors

ООО «Ред Софт», ООО «РусБИТех-Астра», Сообщество свободного программного обеспечения, АО «НППКТ»

Products

РЕД ОС (запись в едином реестре российских программ №3751), Astra Linux Special Edition (запись в едином реестре российских программ №369), Linux, ОСОН ОСнова Оnyx (запись в едином реестре российских программ №5913)

Versions

7.3 (РЕД ОС), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), от 5.11 до 5.15.148 включительно (Linux), от 5.16 до 6.1.76 включительно (Linux), от 6.2 до 6.6.15 включительно (Linux), от 4.7 до 5.10.209 включительно (Linux), до 2.10.1 (ОСОН ОСнова Оnyx), от 6.7 до 6.7.3 включительно (Linux)

Product types

Operating system

Platforms

ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), ООО «РусБИТех-Астра» Astra Linux Special Edition 1.7 (запись в едином реестре российских программ №369), ООО «РусБИТех-Астра» Astra Linux Special Edition 4.7 (запись в едином реестре российских программ №369), Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.148 включительно, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.76 включительно, Сообщество свободного программного обеспечения Linux от 6.2 до 6.6.15 включительно, Сообщество свободного программного обеспечения Linux от 6.7.0 до 6.7.3 включительно, Сообщество свободного программного обеспечения Linux от 4.7 до 5.10.209 включительно, АО «НППКТ» ОСОН ОСнова Оnyx до 2.10.1 (запись в едином реестре российских программ №5913)

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/a9bc32879a08f23cdb80a48c738017e39aea1080 https://git.kernel.org/stable/c/af6b5c50d47ab43e5272ad61935d0ed2e264d3f0 https://git.kernel.org/stable/c/d54e4da98bbfa8c257bdca94c49652d81d18a4d8 https://git.kernel.org/stable/c/350a6640fac4b53564ec20aa3f4a0922cb0ba5e6 https://git.kernel.org/stable/c/c835df3bcc14858ae9b27315dd7de76370b94f3a https://git.kernel.org/stable/c/8d975c15c0cd744000ca386247432d57b21f9df0 https://lore.kernel.org/linux-cve-announce/20240318102117.2839904-12-lee@kernel.org/ https://git.kernel.org/linus/8d975c15c0cd744000ca386247432d57b21f9df0 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210 https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16 https://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4 Для ОСОН ОСнова Оnyx: Обновление программного обеспечения linux до версии 6.6.27-0.osnova229 Для РедОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ Для ОС Astra Linux: - обновить пакет linux до 5.4.0-202.astra1+ci4 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 - обновить пакет linux-5.10 до 5.10.216-1.astra2+ci2 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 - обновить пакет linux-5.15 до 5.15.0-111.astra2+ci1 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 - обновить пакет linux-6.1 до 6.1.90-1.astra3+ci20 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 Для ОС Astra Linux: - обновить пакет linux до 5.4.0-202.astra1+ci5 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 - обновить пакет linux-5.10 до 5.10.216-1.astra2 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 - обновить пакет linux-5.15 до 5.15.0-111.astra2 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47 - обновить пакет linux-6.1 до 6.1.90-1.astra3+ci156 или более высокой версии, используя рекомендации производителя: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:N/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "\u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb, \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb, \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f, \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "7.3 (\u0420\u0415\u0414 \u041e\u0421), 1.7 (Astra Linux Special Edition), 4.7 (Astra Linux Special Edition), \u043e\u0442 5.11 \u0434\u043e 5.15.148 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.76 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 6.2 \u0434\u043e 6.6.15 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u043e\u0442 4.7 \u0434\u043e 5.10.209 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux), \u0434\u043e 2.10.1 (\u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx), \u043e\u0442 6.7 \u0434\u043e 6.7.3 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Linux)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\n\u0414\u043b\u044f Linux:\nhttps://git.kernel.org/stable/c/a9bc32879a08f23cdb80a48c738017e39aea1080\nhttps://git.kernel.org/stable/c/af6b5c50d47ab43e5272ad61935d0ed2e264d3f0\nhttps://git.kernel.org/stable/c/d54e4da98bbfa8c257bdca94c49652d81d18a4d8\nhttps://git.kernel.org/stable/c/350a6640fac4b53564ec20aa3f4a0922cb0ba5e6\nhttps://git.kernel.org/stable/c/c835df3bcc14858ae9b27315dd7de76370b94f3a\nhttps://git.kernel.org/stable/c/8d975c15c0cd744000ca386247432d57b21f9df0\nhttps://lore.kernel.org/linux-cve-announce/20240318102117.2839904-12-lee@kernel.org/\nhttps://git.kernel.org/linus/8d975c15c0cd744000ca386247432d57b21f9df0\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4\n\n\u0414\u043b\u044f \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx:\n\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f linux \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 6.6.27-0.osnova229\n\n\u0414\u043b\u044f \u0420\u0435\u0434\u041e\u0421: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux \u0434\u043e 5.4.0-202.astra1+ci4 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.10 \u0434\u043e 5.10.216-1.astra2+ci2 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-111.astra2+ci1 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.90-1.astra3+ci20 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\n\n\u0414\u043b\u044f \u041e\u0421 Astra Linux:\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux \u0434\u043e 5.4.0-202.astra1+ci5 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.10 \u0434\u043e 5.10.216-1.astra2 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-5.15 \u0434\u043e 5.15.0-111.astra2 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47\n- \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u043f\u0430\u043a\u0435\u0442 linux-6.1 \u0434\u043e 6.1.90-1.astra3+ci156 \u0438\u043b\u0438 \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f: https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "26.01.2024",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "06.05.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "15.05.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-03651",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2024-26641",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "\u0420\u0415\u0414 \u041e\u0421 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Astra Linux Special Edition (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), Linux, \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165913)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "\u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 1.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u041e\u041e\u041e \u00ab\u0420\u0443\u0441\u0411\u0418\u0422\u0435\u0445-\u0410\u0441\u0442\u0440\u0430\u00bb Astra Linux Special Edition 4.7  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u2116369), \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.11 \u0434\u043e 5.15.148 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 5.16 \u0434\u043e 6.1.76 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.2 \u0434\u043e 6.6.15 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 6.7.0 \u0434\u043e 6.7.3 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0421\u043e\u043e\u0431\u0449\u0435\u0441\u0442\u0432\u043e \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f Linux \u043e\u0442 4.7 \u0434\u043e 5.10.209 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e , \u0410\u041e \u00ab\u041d\u041f\u041f\u041a\u0422\u00bb \u041e\u0421\u041e\u041d \u041e\u0421\u043d\u043e\u0432\u0430 \u041enyx \u0434\u043e 2.10.1  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21165913)",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 __ip6_tnl_rcv() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 net/ipv6/ip6_tunnel.c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPv6 \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u0438\u043b\u0438 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0435\u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043f\u0435\u0440\u0435\u043c\u0435\u043d\u043d\u043e\u0439 (CWE-457)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0444\u0443\u043d\u043a\u0446\u0438\u0438 __ip6_tnl_rcv() \u0432 \u043c\u043e\u0434\u0443\u043b\u0435 net/ipv6/ip6_tunnel.c \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u0430 IPv6 \u044f\u0434\u0440\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Linux \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u043d\u0435\u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e, \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u0443\u044e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044e \u0438\u043b\u0438 \u0432\u044b\u0437\u0432\u0430\u0442\u044c \u043e\u0442\u043a\u0430\u0437 \u0432 \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u043d\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://repo.red-soft.ru/redos/7.3c/x86_64/updates/\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26641\nhttps://git.kernel.org/linus/8d975c15c0cd744000ca386247432d57b21f9df0\nhttps://git.kernel.org/stable/c/350a6640fac4b53564ec20aa3f4a0922cb0ba5e6\nhttps://git.kernel.org/stable/c/8d975c15c0cd744000ca386247432d57b21f9df0\nhttps://git.kernel.org/stable/c/a9bc32879a08f23cdb80a48c738017e39aea1080\nhttps://git.kernel.org/stable/c/af6b5c50d47ab43e5272ad61935d0ed2e264d3f0\nhttps://git.kernel.org/stable/c/c835df3bcc14858ae9b27315dd7de76370b94f3a\nhttps://git.kernel.org/stable/c/d54e4da98bbfa8c257bdca94c49652d81d18a4d8\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210\nhttps://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16\nhttps://kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4\nhttps://lore.kernel.org/linux-cve-announce/20240318102117.2839904-12-lee@kernel.org/\nhttps://ubuntu.com/security/notices/USN-6765-1\nhttps://ubuntu.com/security/notices/USN-6766-1\nhttps://ubuntu.com/security/notices/USN-6766-2\nhttps://ubuntu.com/security/notices/USN-6766-3\nhttps://ubuntu.com/security/notices/USN-6795-1\nhttps://ubuntu.com/security/notices/USN-6818-1\nhttps://ubuntu.com/security/notices/USN-6818-2\nhttps://ubuntu.com/security/notices/USN-6818-3\nhttps://ubuntu.com/security/notices/USN-6818-4\nhttps://ubuntu.com/security/notices/USN-6819-1\nhttps://ubuntu.com/security/notices/USN-6819-2\nhttps://ubuntu.com/security/notices/USN-6819-3\nhttps://ubuntu.com/security/notices/USN-6819-4\nhttps://ubuntu.com/security/notices/USN-6828-1\nhttps://ubuntu.com/security/notices/USN-7069-1\nhttps://ubuntu.com/security/notices/USN-7069-2\nhttps://ubuntu.com/security/notices/USN-7088-1\nhttps://ubuntu.com/security/notices/USN-7088-2\nhttps://ubuntu.com/security/notices/USN-7088-3\nhttps://ubuntu.com/security/notices/USN-7088-4\nhttps://www.cve.org/CVERecord?id=CVE-2024-26641\nhttps://\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430.\u043d\u043f\u043f\u043a\u0442.\u0440\u0444/bin/view/\u041e\u0421\u043d\u043e\u0432\u0430/\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f/2.10.1/\nhttps://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17\nhttps://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE47",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-457",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,4)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,1)\n\u041d\u0435\u0442 \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 0)"
}

CVE-2024-26641 (GCVE-0-2024-26641)

Vulnerability from cvelistv5 – Published: 2024-03-18 10:19 – Updated: 2026-08-05 11:26

Title

ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()

Summary

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() syzbot found __ip6_tnl_rcv() could access unitiliazed data [1]. Call pskb_inet_may_pull() to fix this, and initialize ipv6h variable after this call as it can change skb->head. [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321 __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321 ip6ip6_dscp_ecn_decapsulate+0x178/0x1b0 net/ipv6/ip6_tunnel.c:727 __ip6_tnl_rcv+0xd4e/0x1590 net/ipv6/ip6_tunnel.c:845 ip6_tnl_rcv+0xce/0x100 net/ipv6/ip6_tunnel.c:888 gre_rcv+0x143f/0x1870 ip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438 ip6_input_finish net/ipv6/ip6_input.c:483 [inline] NF_HOOK include/linux/netfilter.h:314 [inline] ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492 ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586 dst_input include/net/dst.h:461 [inline] ip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79 NF_HOOK include/linux/netfilter.h:314 [inline] ipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310 __netif_receive_skb_one_core net/core/dev.c:5532 [inline] __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5646 netif_receive_skb_internal net/core/dev.c:5732 [inline] netif_receive_skb+0x58/0x660 net/core/dev.c:5791 tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1555 tun_get_user+0x53af/0x66d0 drivers/net/tun.c:2002 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2084 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x786/0x1200 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xd0 fs/read_write.c:652 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560 __alloc_skb+0x318/0x740 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1286 [inline] alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334 sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787 tun_alloc_skb drivers/net/tun.c:1531 [inline] tun_get_user+0x1e8a/0x66d0 drivers/net/tun.c:1846 tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048 call_write_iter include/linux/fs.h:2084 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x786/0x1200 fs/read_write.c:590 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xd0 fs/read_write.c:652 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 0 PID: 5034 Comm: syz-executor331 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-21 16:08 UTC

Assigner

Linux mitre root Scorecard

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a9bc32879a08f23cd…
https://git.kernel.org/stable/c/af6b5c50d47ab43e5…
https://git.kernel.org/stable/c/d54e4da98bbfa8c25…
https://git.kernel.org/stable/c/350a6640fac4b5356…
https://git.kernel.org/stable/c/c835df3bcc14858ae…
https://git.kernel.org/stable/c/8d975c15c0cd74400…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://security.netapp.com/advisory/ntap-2024110…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < a9bc32879a08f23cdb80a48c738017e39aea1080 (git) Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < af6b5c50d47ab43e5272ad61935d0ed2e264d3f0 (git) Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < d54e4da98bbfa8c257bdca94c49652d81d18a4d8 (git) Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < 350a6640fac4b53564ec20aa3f4a0922cb0ba5e6 (git) Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < c835df3bcc14858ae9b27315dd7de76370b94f3a (git) Affected: 0d3c703a9d1723c7707e0680019ac8ff5922db42 , < 8d975c15c0cd744000ca386247432d57b21f9df0 (git)
Linux	Linux	Affected: 4.7 Unaffected: 0 , < 4.7 (semver) Unaffected: 5.10.210 , ≤ 5.10.* (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.77 , ≤ 6.1.* (semver) Unaffected: 6.6.16 , ≤ 6.6.* (semver) Unaffected: 6.7.4 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()\n\nsyzbot found __ip6_tnl_rcv() could access unitiliazed data [1].\n\nCall pskb_inet_may_pull() to fix this, and initialize ipv6h\nvariable after this call as it can change skb-\u003ehead.\n\n[1]\n BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n BUG: KMSAN: uninit-value in IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321\n  __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]\n  INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]\n  IP6_ECN_decapsulate+0x7df/0x1e50 include/net/inet_ecn.h:321\n  ip6ip6_dscp_ecn_decapsulate+0x178/0x1b0 net/ipv6/ip6_tunnel.c:727\n  __ip6_tnl_rcv+0xd4e/0x1590 net/ipv6/ip6_tunnel.c:845\n  ip6_tnl_rcv+0xce/0x100 net/ipv6/ip6_tunnel.c:888\n gre_rcv+0x143f/0x1870\n  ip6_protocol_deliver_rcu+0xda6/0x2a60 net/ipv6/ip6_input.c:438\n  ip6_input_finish net/ipv6/ip6_input.c:483 [inline]\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ip6_input+0x15d/0x430 net/ipv6/ip6_input.c:492\n  ip6_mc_input+0xa7e/0xc80 net/ipv6/ip6_input.c:586\n  dst_input include/net/dst.h:461 [inline]\n  ip6_rcv_finish+0x5db/0x870 net/ipv6/ip6_input.c:79\n  NF_HOOK include/linux/netfilter.h:314 [inline]\n  ipv6_rcv+0xda/0x390 net/ipv6/ip6_input.c:310\n  __netif_receive_skb_one_core net/core/dev.c:5532 [inline]\n  __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5646\n  netif_receive_skb_internal net/core/dev.c:5732 [inline]\n  netif_receive_skb+0x58/0x660 net/core/dev.c:5791\n  tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1555\n  tun_get_user+0x53af/0x66d0 drivers/net/tun.c:2002\n  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n  call_write_iter include/linux/fs.h:2084 [inline]\n  new_sync_write fs/read_write.c:497 [inline]\n  vfs_write+0x786/0x1200 fs/read_write.c:590\n  ksys_write+0x20f/0x4c0 fs/read_write.c:643\n  __do_sys_write fs/read_write.c:655 [inline]\n  __se_sys_write fs/read_write.c:652 [inline]\n  __x64_sys_write+0x93/0xd0 fs/read_write.c:652\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nUninit was created at:\n  slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\n  slab_alloc_node mm/slub.c:3478 [inline]\n  kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523\n  kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560\n  __alloc_skb+0x318/0x740 net/core/skbuff.c:651\n  alloc_skb include/linux/skbuff.h:1286 [inline]\n  alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334\n  sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2787\n  tun_alloc_skb drivers/net/tun.c:1531 [inline]\n  tun_get_user+0x1e8a/0x66d0 drivers/net/tun.c:1846\n  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048\n  call_write_iter include/linux/fs.h:2084 [inline]\n  new_sync_write fs/read_write.c:497 [inline]\n  vfs_write+0x786/0x1200 fs/read_write.c:590\n  ksys_write+0x20f/0x4c0 fs/read_write.c:643\n  __do_sys_write fs/read_write.c:655 [inline]\n  __se_sys_write fs/read_write.c:652 [inline]\n  __x64_sys_write+0x93/0xd0 fs/read_write.c:652\n  do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n  do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nCPU: 0 PID: 5034 Comm: syz-executor331 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is in the IPv6 tunnel receive path, reached directly from `ipv6_rcv()` \u2192 `ip6_protocol_deliver_rcu()` \u2192 `gre_rcv()`/`ip6ip6_rcv()`/`ip4ip6_rcv()` when a host has an ip6tnl, ip6gre, ERSPAN or collect_md tunnel endpoint configured. A remote attacker triggers it purely by sending a crafted IPv6 packet (proto 47/41/4/137) with a truncated inner header.\nAC:L - The attacker fully controls the packet: simply emitting an outer IPv6+GRE header with zero/short inner payload deterministically reaches `dscp_ecn_decapsulate()` with the inner header absent from the linear area. No race, no memory-layout grooming, and no condition outside the attacker\u0027s control is required.\nPR:N - Tunnel decapsulation is completely unauthenticated \u2014 `ip6_tnl_rcv_ctl()`/`ip6_tnl_lookup()` only compare addresses and keys, and wildcard, `collect_md` and fallback tunnels match arbitrary sources. The attacker needs no account or credentials on the target.\nUI:N - Processing happens automatically in softirq context when the packet is received; no local user has to open, mount, or click anything.\nS:U - The uninitialized read and the out-of-bounds DSCP write are confined to kernel memory managed by the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:L - KMSAN confirms uninitialized kernel heap memory is read and consumed by `__INET_ECN_decapsulate()`, and the outcome is remotely observable (packet dropped vs. delivered, plus the ratelimited \"non-ECT from %pI6 with DS=%#x\" log), giving a repeatable oracle over stale heap contents. The exposure is strictly bounded to a couple of bytes within the skb\u0027s own buffer rather than an arbitrary read.\nI:L - On tunnels configured with `IP6_TNL_F_RCV_DSCP_COPY`, `ipv6_change_dsfield()`/`ipv4_change_dsfield()` perform an unchecked read-modify-write beyond the packet data (unlike the bounds-checked `INET_ECN_set_ce()`), modifying kernel memory that does not belong to the packet \u2014 in the zero-tailroom case the first bytes of `struct skb_shared_info`. The corruption is a few bytes at a fixed offset, not an arbitrary write.\nA:H - The unchecked DSCP write can land on `skb_shared_info`\u0027s `meta_len` and `frag_list` pointer bytes, corrupting a kernel pointer that is later dereferenced during skb traversal/free, yielding an oops; garbage-driven ECN decisions additionally cause spurious `rx_frame_errors` drops of tunnel traffic, and the condition is a hard KMSAN/instrumented-kernel abort. Any unauthenticated remote peer can repeat it indefinitely."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:26:29.008Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a9bc32879a08f23cdb80a48c738017e39aea1080"
        },
        {
          "url": "https://git.kernel.org/stable/c/af6b5c50d47ab43e5272ad61935d0ed2e264d3f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/d54e4da98bbfa8c257bdca94c49652d81d18a4d8"
        },
        {
          "url": "https://git.kernel.org/stable/c/350a6640fac4b53564ec20aa3f4a0922cb0ba5e6"
        },
        {
          "url": "https://git.kernel.org/stable/c/c835df3bcc14858ae9b27315dd7de76370b94f3a"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d975c15c0cd744000ca386247432d57b21f9df0"
        }
      ],
      "title": "ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26641",
    "datePublished": "2024-03-18T10:19:07.581Z",
    "dateReserved": "2024-02-19T14:20:24.137Z",
    "dateUpdated": "2026-08-05T11:26:29.008Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

BDU:2024-03651 (CVE-2024-26641)

CVE-2024-26641 (GCVE-0-2024-26641)

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