CVE-2026-72311: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: drm/xe: free madvise VMA array on L2 flush failure xe_vm_madvise_ioctl() allocates madvise_range.vmas in get_vmas(). After get_vmas() succeeds with at least one VMA, error paths must go through free_vmas so the array is released before the madvise details are destroyed. The L2 flush validation path added for PAT madvise rejects some SVM/userptr ranges after get_vmas() has succeeded, but jumps directly to madv_fini. This skips kfree(madvise_range.vmas), leaking the VMA array on each failed ioctl. Jump to free_vmas instead, matching the other validation failure paths after get_vmas() has succeeded. (cherry picked from commit c3a1c3579b1250060da73507a4acef712974c78a)

Засегнати продукти

• Linux Linux: 4f39a194d41e6b8cb61a91a7bb01b17be59a7d73 преди bf126747e7bff55e5ba0b1ec10fc5fce99feaed9; 4f39a194d41e6b8cb61a91a7bb01b17be59a7d73 преди 14abbed336a2d1bbd726c25d148d2ec0ff928073
• Linux Linux: 7.1; преди 7.1; 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-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72311
• https://nvd.nist.gov/vuln/detail/CVE-2026-72311
• https://git.kernel.org/stable/c/bf126747e7bff55e5ba0b1ec10fc5fce99feaed9
• https://git.kernel.org/stable/c/14abbed336a2d1bbd726c25d148d2ec0ff928073