CVE-2021-47301 (GCVE-0-2021-47301)
Vulnerability from cvelistv5
Published
2024-05-21 14:35
Modified
2025-05-04 07:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: igb: Fix use-after-free error during reset Cleans the next descriptor to watch (next_to_watch) when cleaning the TX ring. Failure to do so can cause invalid memory accesses. If igb_poll() runs while the controller is reset this can lead to the driver try to free a skb that was already freed. (The crash is harder to reproduce with the igb driver, but the same potential problem exists as the code is identical to igc)
References
Impacted products
Vendor Product Version
Linux Linux Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
Version: 7cc6fd4c60f267e17b0baef1580d7a6258c0a6f0
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Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.