CVE-2021-47071 (GCVE-0-2021-47071)

Vulnerability from cvelistv5 – Published: 2024-03-01 21:15 – Updated: 2025-05-04 07:03
VLAI?
Title
uio_hv_generic: Fix a memory leak in error handling paths
Summary
In the Linux kernel, the following vulnerability has been resolved: uio_hv_generic: Fix a memory leak in error handling paths If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be updated and 'hv_uio_cleanup()' in the error handling path will not be able to free the corresponding buffer. In such a case, we need to free the buffer explicitly.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < cdd91637d4ef33e2be19a8e16e72e7d00c996d76 (git)
Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < d84b5e912212b05f6b5bde9f682046accfbe0354 (git)
Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < 53486c467e356e06aa37047c984fccd64d78c827 (git)
Affected: cdfa835c6e5e87d145f9f632b58843de97509f2b , < 3ee098f96b8b6c1a98f7f97915f8873164e6af9d (git)
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    Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.122 , ≤ 5.4.* (semver)
Unaffected: 5.10.40 , ≤ 5.10.* (semver)
Unaffected: 5.12.7 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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  • 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.
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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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