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CVE-2026-72262: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

  • Експлоатация: няма данни за експлоатация
  • Атаката не може да се автоматизира

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get The ipc_control_data buffer is allocated as kzalloc(max_size), where max_size covers the entire struct sof_ipc_ctrl_data including its flexible array payload. However, the bounds checks in bytes_ext_put and _bytes_ext_get compared user data lengths against max_size directly, ignoring that cdata->data sits at an offset of sizeof(struct sof_ipc_ctrl_data) bytes into the allocation. This allowed writing up to sizeof(struct sof_ipc_ctrl_data) bytes past the end of the heap buffer from unprivileged userspace via the ALSA TLV kcontrol interface, and similarly allowed over-reading adjacent heap data on the get path. Fix all bounds checks to subtract sizeof(*cdata) from max_size so they reflect the actual space available at the cdata->data offset. Also fix the error-path restore in bytes_ext_put which wrote to cdata->data instead of cdata, causing the same overflow.

Засегнати продукти

  • Linux Linux: 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди af4b437a463ac0482ba705434a44da06783778e6; 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди 1adde1941bba7b0d7104b86ed819d48d81cb0ad9; 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди eaa67e139c9217099e2a7b717aeeb46c65de3494; 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди 121577383b5cf221e86581e0f2bcca4c66f17469; 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди f4933e1d11b97b6a0951648b7c3e53850e1b33a9; 67ec2a091630c28ea8d05db2bd7178a05b04b7e6 преди fd46668d538993218eea19c6925c868ac0f2630c
  • Linux Linux: 5.18; преди 5.18; 6.1.184 до 6.1.*; 6.6.145 до 6.6.*; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; 7.2 до *

История

  • 15 август 2026 Публикувано

Други уязвимости в Linux Linux

Първоизточници

CVE-2026-72262: Linux | freedomonline.bg