Description

In the Linux kernel, the following vulnerability has been resolved:

dma-buf: Fix NULL pointer dereference in sanitycheck()

If due to a memory allocation failure mock_chain() returns NULL, it is
passed to dma_fence_enable_sw_signaling() resulting in NULL pointer
dereference there.

Call dma_fence_enable_sw_signaling() only if mock_chain() succeeds.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Classification

CVE ID: CVE-2024-35916

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.83% (scored less or equal to compared to others)

EPSS Date: 2025-02-04 (when was this score calculated)

References

https://git.kernel.org/stable/c/0336995512cdab0c65e99e4cdd47c4606debe14e
https://git.kernel.org/stable/c/156c226cbbdcf5f3bce7b2408a33b59fab7fae2c
https://git.kernel.org/stable/c/eabf131cba1db12005a68378305f13b9090a7a6b
https://git.kernel.org/stable/c/2295bd846765c766701e666ed2e4b35396be25e6

Timeline