Vulnerability in Linux
CVE-2023-53181
In the Linux kernel, the following vulnerability has been resolved: dma-buf/dma-resv: Stop leaking on krealloc() failure Currently dma_resv_get_fences() will leak the previously allocated array if the fence iteration got restarted and the krealloc_array() fails. Free the old array by hand, and make sure we still clear the returned *fences so the caller won't end up accessing freed memory. Some (but not all) of the callers of dma_resv_get_fences() seem to still trawl through the array even when dma_resv_get_fences() failed. And let's zero out *num_fences as well for good measure.
EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions d3c80698c9f58a0683badf78793eebaa0c71afbd, 5.16, 0
- Linux Linux_kernel — versions 6.5
References
Frequently asked questions
- What is CVE-2023-53181?
- CVE-2023-53181 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2025-09-15.
- How severe is CVE-2023-53181?
- Medium severity. CVSS v3 base score is 5.5 out of 10.