CVE-2023-53181 (GCVE-0-2023-53181)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:04 – Updated: 2026-05-11 19:39
VLAI?
Title
dma-buf/dma-resv: Stop leaking on krealloc() failure
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: d3c80698c9f58a0683badf78793eebaa0c71afbd , < 19e7b9f1f7e1cb92a4cc53b4c064f7fb4b1f1983 (git)
Affected: d3c80698c9f58a0683badf78793eebaa0c71afbd , < 819656cc03dec7f7f7800274dfbc8eb49f888e9f (git)
Affected: d3c80698c9f58a0683badf78793eebaa0c71afbd , < 05abb3be91d8788328231ee02973ab3d47f5e3d2 (git)
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Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 6.1.42 , ≤ 6.1.* (semver)
Unaffected: 6.4.7 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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