CVE-2026-64256: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that q_id is an unsigned 32-bit variable. If it happens to be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot for ID_MAX, then this addition will truncate to zero and the iteration starts over. Fix this by casting to u64.

Засегнати продукти

• Linux Linux: 21d7500929c8a0b10e22a6755850c6f9a9280284 преди 249e311c2ba392ceaf9ebfc145a46922946f069a; 21d7500929c8a0b10e22a6755850c6f9a9280284 преди d1c4c40599c376aeb0c93068a2ae344e79ee4b90; 21d7500929c8a0b10e22a6755850c6f9a9280284 преди 2b14fe1e0924c6b901f4256456342569c5397abe; 21d7500929c8a0b10e22a6755850c6f9a9280284 преди d766e4e5e85d829629c3ba503802fe1303d7b591
• Linux Linux: 6.8; преди 6.8; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-64256
• https://nvd.nist.gov/vuln/detail/CVE-2026-64256
• https://git.kernel.org/stable/c/249e311c2ba392ceaf9ebfc145a46922946f069a
• https://git.kernel.org/stable/c/d1c4c40599c376aeb0c93068a2ae344e79ee4b90
• https://git.kernel.org/stable/c/2b14fe1e0924c6b901f4256456342569c5397abe
• https://git.kernel.org/stable/c/d766e4e5e85d829629c3ba503802fe1303d7b591