CVE-2021-47655 (GCVE-0-2021-47655)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:54 – Updated: 2026-05-11 13:58
VLAI
Title
media: venus: vdec: fixed possible memory leak issue
Summary
In the Linux kernel, the following vulnerability has been resolved: media: venus: vdec: fixed possible memory leak issue The venus_helper_alloc_dpb_bufs() implementation allows an early return on an error path when checking the id from ida_alloc_min() which would not release the earlier buffer allocation. Move the direct kfree() from the error checking of dma_alloc_attrs() to the common fail path to ensure that allocations are released on all error paths in this function. Addresses-Coverity: 1494120 ("Resource leak")
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:50 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 745e6d8bbe6a6e2e40b1609cea114c129f17031a , < 5cedfe8aaf1875a5305897107b7f298db4260019 (git)
Affected: 40d87aafee29fb01ce1e1868502fb2059a6a7f34 , < 55bccafc246b2e64763a155ec454470c07a54a6e (git)
Affected: 40d87aafee29fb01ce1e1868502fb2059a6a7f34 , < 5f89d05ba93df9c2cdfe493843f93288e55e99eb (git)
Affected: 40d87aafee29fb01ce1e1868502fb2059a6a7f34 , < 8403fdd775858a7bf04868d43daea0acbe49ddfc (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.16
Unaffected: 0 , < 5.16 (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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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