CVE-2026-89745: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmap_prepare Commit 651fdda8406d ("relay: update relay to use mmap_prepare") changed the `mmap` file operation to `mmap_prepare` for relayfs, but the lockdown check in debugfs was not updated accordingly. This prevents debugfs from being locked down when the kernel is in integrity mode if a file uses `mmap_prepare` but not `mmap`. Since the conversion to `mmap_prepare` across the kernel is not yet complete, update the lockdown check to look for both `mmap` and `mmap_prepare` to ensure comprehensive coverage.

Засегнати продукти

• Linux Linux: 651fdda8406d42a5004c5c79f269540a85d6a1ab преди e7f6a6b5741d16fdac7adaecbe0fa52ae756f208; 651fdda8406d42a5004c5c79f269540a85d6a1ab преди f81808de37338aac8e167f99bfae647b1b835c70
• Linux Linux: 6.19; преди 6.19; 7.2.4 до 7.2.*; от 7.3 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-2026-89745
• https://nvd.nist.gov/vuln/detail/CVE-2026-89745
• https://git.kernel.org/stable/c/e7f6a6b5741d16fdac7adaecbe0fa52ae756f208
• https://git.kernel.org/stable/c/f81808de37338aac8e167f99bfae647b1b835c70