Vulnerability-Lookup

BDU:2026-16632 (CVE-2026-74276)

Vulnerability from fstec – Published: 2026-10-16 – Updated: 2026-10-16 – View on bdu.fstec.ru Fixed

Title

Уязвимость функции xilinx_spi_find_buffer_size() компонента drivers/spi/spi-xilinx.c ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Summary

Уязвимость функции xilinx_spi_find_buffer_size() компонента drivers/spi/spi-xilinx.c ядра операционной системы Linux связана с реализацией некорректного потока управления. Эксплуатация уязвимости может позволить нарушителю вызвать отказ в обслуживании

Severity

4.6 (Medium) CVSS 2.0


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

5.5 (Medium) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-691 - Недостаточное управление потоком

Aliases

CVE-2026-74276, GHSA-H2G9-C4GR-QG58

References

15 references

URL
https://git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f
https://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273
https://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066
https://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725
https://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb
https://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b
https://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6
https://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a
https://github.com/advisories/GHSA-h2g9-c4gr-qg58
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/
http://repo.red-soft.ru/redos/8.0/x86_64/updates/
http://repo.red-soft.ru/redos/8.0/aarch64/updates/
https://security-tracker.debian.org/tracker/CVE-2026-74276
https://deb.freexian.com/extended-lts/tracker/CVE-2026-74276
https://ubuntu.com/security/CVE-2026-74276

Impacted products

4 products from 3 vendors

Vendors

Canonical Ltd., Сообщество свободного программного обеспечения, ООО «Ред Софт»

Products

Ubuntu, Debian GNU/Linux, РЕД ОС (запись в едином реестре российских программ №3751), Linux

Versions

16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 18.04 LTS (Ubuntu), 10 (Debian GNU/Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 7.3 (РЕД ОС), 22.04 LTS (Ubuntu), 24.04 LTS (Ubuntu), 13 (Debian GNU/Linux), 8.0 (РЕД ОС), 26.04 LTS (Ubuntu), от 6.2 до 6.6.145 (Linux), от 6.7 до 6.12.97 (Linux), от 6.13 до 6.18.40 (Linux), от 6.19 до 7.1.5 (Linux), от 5.16 до 6.1.178 (Linux), от 5.11 до 5.15.212 (Linux), от 4.0 до 5.10.261 (Linux)

Product types

Operating system

Platforms

Canonical Ltd. Ubuntu 16.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 9, Canonical Ltd. Ubuntu 18.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 10, Canonical Ltd. Ubuntu 20.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 11, Сообщество свободного программного обеспечения Debian GNU/Linux 12, ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), Canonical Ltd. Ubuntu 22.04 LTS, Canonical Ltd. Ubuntu 24.04 LTS, Сообщество свободного программного обеспечения Debian GNU/Linux 13, ООО «Ред Софт» РЕД ОС 8.0 (запись в едином реестре российских программ №3751), Canonical Ltd. Ubuntu 26.04 LTS, Сообщество свободного программного обеспечения Linux от 6.2 до 6.6.145, Сообщество свободного программного обеспечения Linux от 6.7 до 6.12.97, Сообщество свободного программного обеспечения Linux от 6.13 до 6.18.40, Сообщество свободного программного обеспечения Linux от 6.19 до 7.1.5, Сообщество свободного программного обеспечения Linux от 5.16 до 6.1.178, Сообщество свободного программного обеспечения Linux от 5.11 до 5.15.212, Сообщество свободного программного обеспечения Linux от 4.0 до 5.10.261

Mitigations

Использование рекомендаций: Для Linux: https://git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f https://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273 https://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066 https://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725 https://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb https://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b https://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6 https://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a Для Ред ОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/ http://repo.red-soft.ru/redos/8.0/x86_64/updates/ http://repo.red-soft.ru/redos/8.0/aarch64/updates/ Для Debian GNU/Linux: https://security-tracker.debian.org/tracker/CVE-2026-74276 https://deb.freexian.com/extended-lts/tracker/CVE-2026-74276 Для Ubuntu: https://ubuntu.com/security/CVE-2026-74276

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:N/I:N/A:C",
  "CVSS 3.0": "AV:L/AC:L/PR:L/UI:N/S:U/C:N/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": "Canonical Ltd., \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, \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "16.04 LTS (Ubuntu), 9 (Debian GNU/Linux), 18.04 LTS (Ubuntu), 10 (Debian GNU/Linux), 20.04 LTS (Ubuntu), 11 (Debian GNU/Linux), 12 (Debian GNU/Linux), 7.3 (\u0420\u0415\u0414 \u041e\u0421), 22.04 LTS (Ubuntu), 24.04 LTS (Ubuntu), 13 (Debian GNU/Linux), 8.0 (\u0420\u0415\u0414 \u041e\u0421), 26.04 LTS (Ubuntu), \u043e\u0442 6.2 \u0434\u043e 6.6.145 (Linux), \u043e\u0442 6.7 \u0434\u043e 6.12.97 (Linux), \u043e\u0442 6.13 \u0434\u043e 6.18.40 (Linux), \u043e\u0442 6.19 \u0434\u043e 7.1.5 (Linux), \u043e\u0442 5.16 \u0434\u043e 6.1.178 (Linux), \u043e\u0442 5.11 \u0434\u043e 5.15.212 (Linux), \u043e\u0442 4.0 \u0434\u043e 5.10.261 (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/1c9246a199e19b2fd36e94feed60e55f27103a4f\nhttps://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273\nhttps://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066\nhttps://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725\nhttps://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb\nhttps://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b\nhttps://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6\nhttps://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a\n\n\u0414\u043b\u044f \u0420\u0435\u0434 \u041e\u0421:\nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/\nhttp://repo.red-soft.ru/redos/8.0/x86_64/updates/\nhttp://repo.red-soft.ru/redos/8.0/aarch64/updates/\n\n\u0414\u043b\u044f Debian GNU/Linux:\nhttps://security-tracker.debian.org/tracker/CVE-2026-74276\nhttps://deb.freexian.com/extended-lts/tracker/CVE-2026-74276\n\n\u0414\u043b\u044f Ubuntu:\nhttps://ubuntu.com/security/CVE-2026-74276",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "12.06.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "16.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "16.10.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-16632",
  "\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-2026-74276, GHSA-H2G9-C4GR-QG58",
  "\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": "Ubuntu, Debian GNU/Linux, \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), Linux",
  "\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": "Canonical Ltd. Ubuntu 16.04 LTS , \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 Debian GNU/Linux 9 , Canonical Ltd. Ubuntu 18.04 LTS , \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 Debian GNU/Linux 10 , Canonical Ltd. Ubuntu 20.04 LTS , \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 Debian GNU/Linux 11 , \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 Debian GNU/Linux 12 , \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), Canonical Ltd. Ubuntu 22.04 LTS , Canonical Ltd. Ubuntu 24.04 LTS , \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 Debian GNU/Linux 13 , \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 8.0  (\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), Canonical Ltd. Ubuntu 26.04 LTS , \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 6.6.145 , \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 \u0434\u043e 6.12.97 , \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 6.13 \u0434\u043e 6.18.40 , \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 6.19 \u0434\u043e 7.1.5 , \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 6.1.178 , \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 5.15.212 , \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 4.0 \u0434\u043e 5.10.261 ",
  "\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 xilinx_spi_find_buffer_size() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 drivers/spi/spi-xilinx.c \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 \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": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0435 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u043e\u0442\u043e\u043a\u043e\u043c (CWE-691)",
  "\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 xilinx_spi_find_buffer_size() \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430 drivers/spi/spi-xilinx.c \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 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0433\u043e \u043f\u043e\u0442\u043e\u043a\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f. \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 \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": "https://git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f\nhttps://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273\nhttps://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066\nhttps://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725\nhttps://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb\nhttps://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b\nhttps://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6\nhttps://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a\nhttps://github.com/advisories/GHSA-h2g9-c4gr-qg58\nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/\nhttp://repo.red-soft.ru/redos/8.0/x86_64/updates/\nhttp://repo.red-soft.ru/redos/8.0/aarch64/updates/\nhttps://security-tracker.debian.org/tracker/CVE-2026-74276\nhttps://deb.freexian.com/extended-lts/tracker/CVE-2026-74276\nhttps://ubuntu.com/security/CVE-2026-74276",
  "\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-691",
  "\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": "\u0421\u0440\u0435\u0434\u043d\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 4,6)\n\u0421\u0440\u0435\u0434\u043d\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 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,5)"
}

CVE-2026-74276 (GCVE-0-2026-74276)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:16

Title

spi: xilinx: use FIFO occupancy register to determine buffer size

Summary

In the Linux kernel, the following vulnerability has been resolved: spi: xilinx: use FIFO occupancy register to determine buffer size The method the driver uses to determine the size of the FIFO has a problem. What it currently does is this: It stops the SPI hardware and writes to the TX FIFO register until TX FIFO FULL asserts in the status register. But the hardware does not only have the FIFO, it also has a shift register which can hold a byte. This can be seen, when writing a byte to the FIFO (while the SPI hardware is stopped,) the TX FIFO EMPTY is still empty. So, if we have a FIFO size of 16 for example, the current method returns a 17. This is a problem, at least when using the driver in irq mode. The same size determined for the TX FIFO is also assumed for the RX FIFO. When a SPI transaction wants to write the amount of the FIFO size or more bytes, the following happens, for example with 16 bytes FIFO size: The driver stops the SPI hardware and writes 17 bytes to the TX FIFO and starts the SPI hardware and goes sleep. The hardware then shifts out 17 bytes (FIFO + shift register) and simultaneously reads bytes into the RX FIFO, but it only has 16 places, so it looses one byte. Then TX FIFO empty asserts, wakes the driver again, which has a fast path and reads 16 bytes from the RX FIFO, but before reading the last 17th byte (which is lost) it does this: sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET); if (!(sr & XSPI_SR_RX_EMPTY_MASK)) { xilinx_spi_rx(xspi); rx_words--; } It reads the status register and checks if the RX FIFO is not empty. But it is empty in our case. So this check spins in a while loop forever locking the driver. This patch fixes the logic to determine the FIFO size.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/4ee65558a7fda4632…
https://git.kernel.org/stable/c/e98f589d54068dfcc…
https://git.kernel.org/stable/c/1fc6a6c0cc7796b0c…
https://git.kernel.org/stable/c/dfab0d4698a642bab…
https://git.kernel.org/stable/c/d7ccd8736b67550ec…
https://git.kernel.org/stable/c/1c9246a199e19b2fd…
https://git.kernel.org/stable/c/d1944b71c18e74947…
https://git.kernel.org/stable/c/47f3b5365536e8c38…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < 4ee65558a7fda463222f5edc631b6d7862218725 (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < e98f589d54068dfcc7da42d9b730e47b84e2991a (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < 1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273 (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < dfab0d4698a642bab9b895e2e6d240838cfe2cc6 (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < d7ccd8736b67550eca746ed7fa39a36016ff114b (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < 1c9246a199e19b2fd36e94feed60e55f27103a4f (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < d1944b71c18e7494756bff1a6f80c25be99eaecb (git) Affected: 4c9a761402d780b86b9b068aba4ef8e29ed15e99 , < 47f3b5365536e8c38f264824ab15fdb74454e066 (git)
Linux	Linux	Affected: 4.0 Unaffected: 0 , < 4.0 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.97 , ≤ 6.12.* (semver) Unaffected: 6.18.40 , ≤ 6.18.* (semver) Unaffected: 7.1.5 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/spi/spi-xilinx.c"
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              "versionType": "git"
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            },
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              "version": "4c9a761402d780b86b9b068aba4ef8e29ed15e99",
              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
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          "product": "Linux",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "4.0"
            },
            {
              "lessThan": "4.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.261",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.212",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.178",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.145",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "versionEndExcluding": "5.10.261",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                },
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                  "versionEndExcluding": "6.1.178",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.145",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.97",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.40",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.5",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "4.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: xilinx: use FIFO occupancy register to determine buffer size\n\nThe method the driver uses to determine the size of the FIFO has a\nproblem. What it currently does is this:\nIt stops the SPI hardware and writes to the TX FIFO register until TX\nFIFO FULL asserts in the status register. But the hardware does not only\nhave the FIFO, it also has a shift register which can hold a byte. This\ncan be seen, when writing a byte to the FIFO (while the SPI hardware is\nstopped,) the TX FIFO EMPTY is still empty. So, if we have a FIFO size\nof 16 for example, the current method returns a 17.\nThis is a problem, at least when using the driver in irq mode. The same\nsize determined for the TX FIFO is also assumed for the RX FIFO. When a\nSPI transaction wants to write the amount of the FIFO size or more\nbytes, the following happens, for example with 16 bytes FIFO size:\nThe driver stops the SPI hardware and writes 17 bytes to the TX FIFO and\nstarts the SPI hardware and goes sleep.\nThe hardware then shifts out 17 bytes (FIFO + shift register) and\nsimultaneously reads bytes into the RX FIFO, but it only has 16 places,\nso it looses one byte. Then TX FIFO empty asserts, wakes the driver\nagain, which has a fast path and reads 16 bytes from the RX FIFO, but\nbefore reading the last 17th byte (which is lost) it does this:\n\n\tsr = xspi-\u003eread_fn(xspi-\u003eregs + XSPI_SR_OFFSET);\n\tif (!(sr \u0026 XSPI_SR_RX_EMPTY_MASK)) {\n\t\txilinx_spi_rx(xspi);\n\t\trx_words--;\n\t}\n\nIt reads the status register and checks if the RX FIFO is not empty.\nBut it is empty in our case. So this check spins in a while loop\nforever locking the driver.\n\nThis patch fixes the logic to determine the FIFO size."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:16:20.426Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725"
        },
        {
          "url": "https://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273"
        },
        {
          "url": "https://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb"
        },
        {
          "url": "https://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066"
        }
      ],
      "title": "spi: xilinx: use FIFO occupancy register to determine buffer size",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74276",
    "datePublished": "2026-08-15T05:57:48.115Z",
    "dateReserved": "2026-08-15T05:44:03.880Z",
    "dateUpdated": "2026-08-17T05:16:20.426Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-H2G9-C4GR-QG58

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32

Details

In the Linux kernel, the following vulnerability has been resolved:

spi: xilinx: use FIFO occupancy register to determine buffer size

The method the driver uses to determine the size of the FIFO has a problem. What it currently does is this: It stops the SPI hardware and writes to the TX FIFO register until TX FIFO FULL asserts in the status register. But the hardware does not only have the FIFO, it also has a shift register which can hold a byte. This can be seen, when writing a byte to the FIFO (while the SPI hardware is stopped,) the TX FIFO EMPTY is still empty. So, if we have a FIFO size of 16 for example, the current method returns a 17. This is a problem, at least when using the driver in irq mode. The same size determined for the TX FIFO is also assumed for the RX FIFO. When a SPI transaction wants to write the amount of the FIFO size or more bytes, the following happens, for example with 16 bytes FIFO size: The driver stops the SPI hardware and writes 17 bytes to the TX FIFO and starts the SPI hardware and goes sleep. The hardware then shifts out 17 bytes (FIFO + shift register) and simultaneously reads bytes into the RX FIFO, but it only has 16 places, so it looses one byte. Then TX FIFO empty asserts, wakes the driver again, which has a fast path and reads 16 bytes from the RX FIFO, but before reading the last 17th byte (which is lost) it does this:

sr = xspi->read_fn(xspi->regs + XSPI_SR_OFFSET);
if (!(sr & XSPI_SR_RX_EMPTY_MASK)) {
    xilinx_spi_rx(xspi);
    rx_words--;
}

It reads the status register and checks if the RX FIFO is not empty. But it is empty in our case. So this check spins in a while loop forever locking the driver.

This patch fixes the logic to determine the FIFO size.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-74276"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:22:26Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nspi: xilinx: use FIFO occupancy register to determine buffer size\n\nThe method the driver uses to determine the size of the FIFO has a\nproblem. What it currently does is this:\nIt stops the SPI hardware and writes to the TX FIFO register until TX\nFIFO FULL asserts in the status register. But the hardware does not only\nhave the FIFO, it also has a shift register which can hold a byte. This\ncan be seen, when writing a byte to the FIFO (while the SPI hardware is\nstopped,) the TX FIFO EMPTY is still empty. So, if we have a FIFO size\nof 16 for example, the current method returns a 17.\nThis is a problem, at least when using the driver in irq mode. The same\nsize determined for the TX FIFO is also assumed for the RX FIFO. When a\nSPI transaction wants to write the amount of the FIFO size or more\nbytes, the following happens, for example with 16 bytes FIFO size:\nThe driver stops the SPI hardware and writes 17 bytes to the TX FIFO and\nstarts the SPI hardware and goes sleep.\nThe hardware then shifts out 17 bytes (FIFO + shift register) and\nsimultaneously reads bytes into the RX FIFO, but it only has 16 places,\nso it looses one byte. Then TX FIFO empty asserts, wakes the driver\nagain, which has a fast path and reads 16 bytes from the RX FIFO, but\nbefore reading the last 17th byte (which is lost) it does this:\n\n\tsr = xspi-\u003eread_fn(xspi-\u003eregs + XSPI_SR_OFFSET);\n\tif (!(sr \u0026 XSPI_SR_RX_EMPTY_MASK)) {\n\t\txilinx_spi_rx(xspi);\n\t\trx_words--;\n\t}\n\nIt reads the status register and checks if the RX FIFO is not empty.\nBut it is empty in our case. So this check spins in a while loop\nforever locking the driver.\n\nThis patch fixes the logic to determine the FIFO size.",
  "id": "GHSA-h2g9-c4gr-qg58",
  "modified": "2026-08-15T06:32:27Z",
  "published": "2026-08-15T06:32:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74276"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c9246a199e19b2fd36e94feed60e55f27103a4f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fc6a6c0cc7796b0c1cf4eec3f0720f422f09273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47f3b5365536e8c38f264824ab15fdb74454e066"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ee65558a7fda463222f5edc631b6d7862218725"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1944b71c18e7494756bff1a6f80c25be99eaecb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7ccd8736b67550eca746ed7fa39a36016ff114b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfab0d4698a642bab9b895e2e6d240838cfe2cc6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e98f589d54068dfcc7da42d9b730e47b84e2991a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

Sightings

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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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.
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BDU:2026-16632 (CVE-2026-74276)

CVE-2026-74276 (GCVE-0-2026-74276)

GHSA-H2G9-C4GR-QG58

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