CVE-2023-53181
dma-buf/dma-resv: Stop leaking on krealloc() failure
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 15, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
d3c80698c9f58a0683badf78793eebaa0c71afbd < 19e7b9f1f7e1cb92a4cc53b4c064f7fb4b1f1983 d3c80698c9f58a0683badf78793eebaa0c71afbd < 819656cc03dec7f7f7800274dfbc8eb49f888e9f d3c80698c9f58a0683badf78793eebaa0c71afbd < 05abb3be91d8788328231ee02973ab3d47f5e3d2
Linux / Linux
5.16