CVE-2022-49920 (GCVE-0-2022-49920)

Vulnerability from cvelistv5 – Published: 2025-05-01 14:10 – Updated: 2025-10-01 14:58
VLAI?
Title
netfilter: nf_tables: netlink notifier might race to release objects
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.
Severity ?
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < 1ffe7100411a8b9015115ce124cd6c9c9da6f8e3 (git)
Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0 (git)
Affected: 6001a930ce0378b62210d4f83583fc88a903d89d , < d4bc8271db21ea9f1c86a1ca4d64999f184d4aae (git)
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    Linux Linux Affected: 5.12
Unaffected: 0 , < 5.12 (semver)
Unaffected: 5.15.78 , ≤ 5.15.* (semver)
Unaffected: 6.0.8 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (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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