CVE-2026-74306: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: vfio/qat: fix f_pos race in qat_vf_resume_write() qat_vf_resume_write() checks filp->f_pos before taking migf->lock, but copies into the migration-state buffer after taking the lock and re-reading the shared file position. Two concurrent writers could therefore pass the bounds check with the old offset, then have the second writer copy after the first advanced f_pos, writing past the end of the migration-state buffer. Take migf->lock before doing the boundary checks.

Засегнати продукти

• Linux Linux: bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 преди 6465af0004dc1b067129a26ef44f19cdf13bbce6; bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 преди d416dcefdbac90d96b22485fd93f28229ad9984b; bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 преди b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281; bb208810b1abf1c84870cfbe1cc9cf1a1d35c607 преди 4ec5e932e636896e97e4c6a8205b0ac76d52421a
• Linux Linux: 6.10; преди 6.10; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74306
• https://nvd.nist.gov/vuln/detail/CVE-2026-74306
• https://git.kernel.org/stable/c/6465af0004dc1b067129a26ef44f19cdf13bbce6
• https://git.kernel.org/stable/c/d416dcefdbac90d96b22485fd93f28229ad9984b
• https://git.kernel.org/stable/c/b6fd7a40a66485c8aa8156d8fcf50b95cb8ba281
• https://git.kernel.org/stable/c/4ec5e932e636896e97e4c6a8205b0ac76d52421a