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EUVD-2026-345553
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 08:02
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T08:02:36.842515+00:00",
"id": "EUVD-2026-345553"
}
CVE-2024-26883 (GCVE-0-2024-26883)
Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-08-05 11:28
VLAI
EPSS
VEX
Title
bpf: Fix stackmap overflow check on 32-bit arches
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix stackmap overflow check on 32-bit arches
The stackmap code relies on roundup_pow_of_two() to compute the number
of hash buckets, and contains an overflow check by checking if the
resulting value is 0. However, on 32-bit arches, the roundup code itself
can overflow by doing a 32-bit left-shift of an unsigned long value,
which is undefined behaviour, so it is not guaranteed to truncate
neatly. This was triggered by syzbot on the DEVMAP_HASH type, which
contains the same check, copied from the hashtab code.
The commit in the fixes tag actually attempted to fix this, but the fix
did not account for the UB, so the fix only works on CPUs where an
overflow does result in a neat truncation to zero, which is not
guaranteed. Checking the value before rounding does not have this
problem.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:48 UTC
Assigner
References
12 references
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
063c722dd9d285d877e6fd499e753d6224f4c046 , < d0e214acc59145ce25113f617311aa79dda39cb3
(git)
Affected: 7e3a6b820535eb395784060ae26c5af579528fa0 , < 21e5fa4688e1a4d3db6b72216231b24232f75c1d (git) Affected: 8032bf2af9ce26b3a362b9711d15f626ab946a74 , < 15641007df0f0d35fa28742b25c2a7db9dcd6895 (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < ca1f06e72dec41ae4f76e7b1a8a97265447b46ae (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < f06899582ccee09bd85d0696290e3eaca9aa042d (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < 7070b274c7866a4c5036f8d54fcaf315c64ac33a (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < 43f798b9036491fb014b55dd61c4c5c3193267d0 (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < 0971126c8164abe2004b8536b49690a0d6005b0a (git) Affected: 6183f4d3a0a2ad230511987c6c362ca43ec0055f , < 7a4b21250bf79eef26543d35bd390448646c536b (git) Affected: 253150830a012adfccf90afcebae8fda5b05a80f (git) Affected: 766107351731ae223ebf60ca22bdfeb47ce6acc8 (git) Affected: 4.19.177 , < 4.19.311 (semver) Affected: 5.4.99 , < 5.4.273 (semver) Affected: 5.10.17 , < 5.10.214 (semver) Affected: 4.9.258 , < 4.10 (semver) Affected: 4.14.222 , < 4.15 (semver) |
|
| Linux | Linux |
Affected:
5.11
Unaffected: 0 , < 5.11 (semver) Unaffected: 4.19.311 , ≤ 4.19.* (semver) Unaffected: 5.4.273 , ≤ 5.4.* (semver) Unaffected: 5.10.214 , ≤ 5.10.* (semver) Unaffected: 5.15.153 , ≤ 5.15.* (semver) Unaffected: 6.1.83 , ≤ 6.1.* (semver) Unaffected: 6.6.23 , ≤ 6.6.* (semver) Unaffected: 6.7.11 , ≤ 6.7.* (semver) Unaffected: 6.8.2 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
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Trend slope:
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(linear fit over daily sighting counts)
Show additional events:
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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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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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