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EUVD-2026-309749
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 07:10
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": "2026-10-02T07:10:02.745632+00:00",
"id": "EUVD-2026-309749"
}
CVE-2021-47456 (GCVE-0-2021-47456)
Vulnerability from cvelistv5 – Published: 2024-05-22 06:19 – Updated: 2026-05-11 13:55
VLAI
EPSS
VEX
Title
can: peak_pci: peak_pci_remove(): fix UAF
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: peak_pci: peak_pci_remove(): fix UAF
When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.
Fix this by releasing 'dev' later.
The following log reveals it:
[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[ 35.965513 ] Call Trace:
[ 35.965718 ] dump_stack_lvl+0xa8/0xd1
[ 35.966028 ] print_address_description+0x87/0x3b0
[ 35.966420 ] kasan_report+0x172/0x1c0
[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170
[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20
[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]
[ 35.968752 ] pci_device_remove+0xa9/0x250
Severity
8.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-22 14:47 UTC
Assigner
References
8 references
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 1c616528ba4aeb1125a06b407572ab7b56acae38
(git)
Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 447d44cd2f67a20b596ede3ca3cd67086dfd9ca9 (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 34914971bb3244db4ce2be44e9438a9b30c56250 (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < adbda14730aacce41c0d3596415aa39ad63eafd9 (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 1248582e47a9f7ce0ecd156c39fc61f8b6aa3699 (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 28f28e4bc3a5e0051faa963f10b778ab38c1db69 (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 0e5afdc2315b0737edcf55bede4ee1640d2d464d (git) Affected: e6d9c80b7ca1504411ad6d7acdb8683e4ae1c9cd , < 949fe9b35570361bc6ee2652f89a0561b26eec98 (git) |
|
| Linux | Linux |
Affected:
3.4
Unaffected: 0 , < 3.4 (semver) Unaffected: 4.4.290 , ≤ 4.4.* (semver) Unaffected: 4.9.288 , ≤ 4.9.* (semver) Unaffected: 4.14.253 , ≤ 4.14.* (semver) Unaffected: 4.19.214 , ≤ 4.19.* (semver) Unaffected: 5.4.156 , ≤ 5.4.* (semver) Unaffected: 5.10.76 , ≤ 5.10.* (semver) Unaffected: 5.14.15 , ≤ 5.14.* (semver) Unaffected: 5.15 , ≤ * (original_commit_for_fix) |
|
| linux | linux_kernel |
Affected:
e6d9c80b7ca1
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Affected:
3.4
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
0
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
4.4.290
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
4.9.288
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
4.14.253
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
4.19.214
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
5.4.156
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
5.10.76
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
5.14.15
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
|
| linux | linux_kernel |
Unaffected:
5.15
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 8.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
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"options": [
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},
{
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{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-05-22T14:47:53.013850Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
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"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
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"description": "CWE-467 Use of sizeof() on a Pointer Type",
"lang": "en",
"type": "CWE"
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}
],
"providerMetadata": {
"dateUpdated": "2024-06-04T17:15:08.225Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"providerMetadata": {
"dateUpdated": "2024-08-04T05:39:59.411Z",
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],
"title": "CVE Program Container"
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],
"cna": {
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"product": "Linux",
"programFiles": [
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"cpeApplicability": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_pci: peak_pci_remove(): fix UAF\n\nWhen remove the module peek_pci, referencing \u0027chan\u0027 again after\nreleasing \u0027dev\u0027 will cause UAF.\n\nFix this by releasing \u0027dev\u0027 later.\n\nThe following log reveals it:\n\n[ 35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537\n[ 35.965513 ] Call Trace:\n[ 35.965718 ] dump_stack_lvl+0xa8/0xd1\n[ 35.966028 ] print_address_description+0x87/0x3b0\n[ 35.966420 ] kasan_report+0x172/0x1c0\n[ 35.966725 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.967137 ] ? trace_irq_enable_rcuidle+0x10/0x170\n[ 35.967529 ] ? peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.967945 ] __asan_report_load8_noabort+0x14/0x20\n[ 35.968346 ] peak_pci_remove+0x16f/0x270 [peak_pci]\n[ 35.968752 ] pci_device_remove+0xa9/0x250"
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"title": "can: peak_pci: peak_pci_remove(): fix UAF",
"x_generator": {
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"datePublished": "2024-05-22T06:19:45.363Z",
"dateReserved": "2024-05-21T14:58:30.833Z",
"dateUpdated": "2026-05-11T13:55:04.351Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(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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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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