CVE-2026-23158: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: gpio: virtuser: fix UAF in configfs release path The gpio-virtuser configfs release path uses guard(mutex) to protect the device structure. However, the device is freed before the guard cleanup runs, causing mutex_unlock() to operate on freed memory. Specifically, gpio_virtuser_device_config_group_release() destroys the mutex and frees the device while still inside the guard(mutex) scope. When the function returns, the guard cleanup invokes mutex_unlock(&dev->lock), resulting in a slab use-after-free. Limit the mutex lifetime by using a scoped_guard() only around the activation check, so that the lock is released before mutex_destroy() and kfree() are called.

Засегнати продукти

• Linux Linux: 91581c4b3f29e2e22aeb1a62e842d529ca638b2d преди 815a8e3bf72811d402b30bd4a53cde5e9df7a563; 91581c4b3f29e2e22aeb1a62e842d529ca638b2d преди 7bec90f605cfb138006f5ba575f2310593347110; 91581c4b3f29e2e22aeb1a62e842d529ca638b2d преди 53ad4a948a4586359b841d607c08fb16c5503230
• Linux Linux: 6.11; преди 6.11; 6.12.69 до 6.12.*; 6.18.9 до 6.18.*; от 6.19 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-2026-23158
• https://nvd.nist.gov/vuln/detail/CVE-2026-23158
• https://git.kernel.org/stable/c/815a8e3bf72811d402b30bd4a53cde5e9df7a563
• https://git.kernel.org/stable/c/7bec90f605cfb138006f5ba575f2310593347110
• https://git.kernel.org/stable/c/53ad4a948a4586359b841d607c08fb16c5503230