Pavel Sakharov

**Name of the Vulnerable Software and Affected Versions** Linux kernel (affected versions not specified) **Description** The issue is related to a NULL pointer dereference in the `sanitycheck()` function. If a memory allocation failure occurs and `mock chain()` returns NULL, it is passed to `dma fence enable sw signaling()`, resulting in a NULL pointer dereference. The fix involves calling `dma fence enable sw signaling()` only if `mock chain()` succeeds. This vulnerability may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.