CVE-2022-48748 (GCVE-0-2022-48748)
Vulnerability from cvelistv5 – Published: 2024-06-20 11:13 – Updated: 2026-05-11 18:46
VLAI
EPSS
VEX
Title
net: bridge: vlan: fix memory leak in __allowed_ingress
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: vlan: fix memory leak in __allowed_ingress
When using per-vlan state, if vlan snooping and stats are disabled,
untagged or priority-tagged ingress frame will go to check pvid state.
If the port state is forwarding and the pvid state is not
learning/forwarding, untagged or priority-tagged frame will be dropped
but skb memory is not freed.
Should free skb when __allowed_ingress returns false.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-26 14:37 UTC
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
12 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
a580c76d534c7360ba68042b19cb255e8420e987 , < 446ff1fc37c74093e81db40811a07b5a19f1d797
(git)
Affected: a580c76d534c7360ba68042b19cb255e8420e987 , < c5e216e880fa6f2cd9d4a6541269377657163098 (git) Affected: a580c76d534c7360ba68042b19cb255e8420e987 , < 14be8d448fca6fe7b2a413831eedd55aef6c6511 (git) Affected: a580c76d534c7360ba68042b19cb255e8420e987 , < fd20d9738395cf8e27d0a17eba34169699fccdff (git) |
guessed | |
| Linux | Linux |
Affected:
5.6
Unaffected: 0 , < 5.6 (semver) Unaffected: 5.10.96 , ≤ 5.10.* (semver) Unaffected: 5.15.19 , ≤ 5.15.* (semver) Unaffected: 5.16.5 , ≤ 5.16.* (semver) Unaffected: 5.17 , ≤ * (original_commit_for_fix) |
guessed | |
| linux | linux_kernel |
Affected:
a580c76d534c , < 446ff1fc37c7
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
a580c76d534c , < c5e216e880fa
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
a580c76d534c , < 14be8d448fca
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
a580c76d534c , < fd20d9738395
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
5.6
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
0 , < 5.6
(custom)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
5.10.96 , ≤ 5.11
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
5.15.19 , ≤ 5.16
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
5.16.5 , ≤ 5.17
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Unaffected:
5.17
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- 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.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- 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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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