CVE-2026-31753: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: auxdisplay: line-display: fix NULL dereference in linedisp_release linedisp_release() currently retrieves the enclosing struct linedisp via to_linedisp(). That lookup depends on the attachment list, but the attachment may already have been removed before put_device() invokes the release callback. This can happen in linedisp_unregister(), and can also be reached from some linedisp_register() error paths. In that case, to_linedisp() returns NULL and linedisp_release() dereferences it while freeing the display resources. The struct device released here is the embedded linedisp->dev used by linedisp_register(), so retrieve the enclosing object directly with container_of() instead.

Засегнати продукти

• Linux Linux: 66c93809487e62c4f59ef08625a3fbc0a7de6dd2 преди 625fdac41cfc4ca9e1774a0d31d7985aec2c1d66; 66c93809487e62c4f59ef08625a3fbc0a7de6dd2 преди 7f138de156b20d9f9da6f72f90b63c01941d97d3
• Linux Linux: 6.19; преди 6.19; 6.19.12 до 6.19.*; от 7.0 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-2026-31753
• https://nvd.nist.gov/vuln/detail/CVE-2026-31753
• https://git.kernel.org/stable/c/625fdac41cfc4ca9e1774a0d31d7985aec2c1d66
• https://git.kernel.org/stable/c/7f138de156b20d9f9da6f72f90b63c01941d97d3