CVE-2022-48911
netfilter: nf_queue: fix possible use-after-free
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_queue: fix possible use-after-free Eric Dumazet says: The sock_hold() side seems suspect, because there is no guarantee that sk_refcnt is not already 0. On failure, we cannot queue the packet and need to indicate an error. The packet will be dropped by the caller. v2: split skb prefetch hunk into separate change
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 24 months later
· 24 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < 21b27b2baa27423286e9b8d3f0b194d587083d95
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < ef97921ccdc243170fcef857ba2a17cf697aece5
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < 34dc4a6a7f261736ef7183868a5bddad31c7f9e3
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < 43c25da41e3091b31a906651a43e80a2719aa1ff
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < 4d05239203fa38ea8a6f31e228460da4cb17a71a
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < dd648bd1b33a828f62befa696b206c688da0ec43
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee
- affected 271b72c7fa82c2c7a795bc16896149933110672d – < c3873070247d9e3c7a6b0cf9bf9b45e8018427b1
- affected 2.6.29
- unaffected < 2.6.29
- unaffected 4.9.305 – ≤ 4.9.*
- unaffected 4.14.270 – ≤ 4.14.*
- unaffected 4.19.233 – ≤ 4.19.*
- unaffected 5.4.183 – ≤ 5.4.*
- unaffected 5.10.104 – ≤ 5.10.*
- unaffected 5.15.27 – ≤ 5.15.*
- unaffected 5.16.13 – ≤ 5.16.*
- unaffected 5.17 – ≤ *
References (8)
- https://git.kernel.org/stable/c/21b27b2baa27423286e9b8d3f0b194d587083d95 (opens in a new tab)
- https://git.kernel.org/stable/c/ef97921ccdc243170fcef857ba2a17cf697aece5 (opens in a new tab)
- https://git.kernel.org/stable/c/34dc4a6a7f261736ef7183868a5bddad31c7f9e3 (opens in a new tab)
- https://git.kernel.org/stable/c/43c25da41e3091b31a906651a43e80a2719aa1ff (opens in a new tab)
- https://git.kernel.org/stable/c/4d05239203fa38ea8a6f31e228460da4cb17a71a (opens in a new tab)
- https://git.kernel.org/stable/c/dd648bd1b33a828f62befa696b206c688da0ec43 (opens in a new tab)
- https://git.kernel.org/stable/c/dcc3cb920bf7ba66ac5e9272293a9ba5f80917ee (opens in a new tab)
- https://git.kernel.org/stable/c/c3873070247d9e3c7a6b0cf9bf9b45e8018427b1 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-48911)Record last updated .