CVE-2026-53067: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-ep-msi: Fix error unwind and prevent double alloc pci_epf_alloc_doorbell() stores the allocated doorbell message array in epf->db_msg/epf->num_db before requesting MSI vectors. If MSI allocation fails, the array is freed but the EPF state may still point to freed memory. Clear epf->db_msg and epf->num_db on the MSI allocation failure path so that later cleanup cannot double-free the array and callers can retry allocation. Also return -EBUSY when doorbells have already been allocated to prevent leaking or overwriting an existing allocation.

Засегнати продукти

• Linux Linux: 1c3b002c6bf684b445a7107609979bca5f21bc03 преди 175717cfc06cab79f84cd037d66dda1b8564cd9e; 1c3b002c6bf684b445a7107609979bca5f21bc03 преди 3c25587fbf8797b92090b064a6d239a873e55fb1; 1c3b002c6bf684b445a7107609979bca5f21bc03 преди 1cba96c0a795124c3229293ed7b5b5765e66f259
• Linux Linux: 6.17; преди 6.17; 6.18.33 до 6.18.*; 7.0.10 до 7.0.*; 7.1 до *

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-2026-53067
• https://nvd.nist.gov/vuln/detail/CVE-2026-53067
• https://git.kernel.org/stable/c/175717cfc06cab79f84cd037d66dda1b8564cd9e
• https://git.kernel.org/stable/c/3c25587fbf8797b92090b064a6d239a873e55fb1
• https://git.kernel.org/stable/c/1cba96c0a795124c3229293ed7b5b5765e66f259