CVE-2022-48637 (GCVE-0-2022-48637)

Vulnerability from cvelistv5 – Published: 2024-04-28 12:59 – Updated: 2025-05-04 08:20
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free. Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.
Severity ?
No CVSS data available.
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 83bb623c968e7351aee5111547693f95f330dc5a , < 08483e4c0c83b221b8891434a04cec405dee94a6 (git)
Affected: 83bb623c968e7351aee5111547693f95f330dc5a , < 32afa1f23e42cc635ccf4c39f24514d03d1e8338 (git)
Affected: 83bb623c968e7351aee5111547693f95f330dc5a , < c31f26c8f69f776759cbbdfb38e40ea91aa0dd65 (git)
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    Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.71 , ≤ 5.15.* (semver)
Unaffected: 5.19.12 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (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.
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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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