Public vulnerability disclosure
CVE-2023-1077
CVE-2023-1077
publishedCWE-843
In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which would then be used as a type confused sched_rt_entity,causing memory corruption.
Technical severity7.0 highCVSS 3.1 · NVD: [email protected]
Published2023-03-27Source updated 2026-11-02
Collected2026-11-033 attributed sources
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: [email protected]Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: af854a3a-2127-422b-91ae-364da2661108Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux kernel n/a |
Version not specified (affected) | CNA: redhat |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Siemens |
≥ V3.1.0; < V3.1.5 (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Siemens |
≥ V3.1.0; < V3.1.5 (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Siemens |
≥ 0; < V1.1 (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Siemens |
≥ V3.1.0; < V3.1.5 (affected, custom)
Other versions: unknown |
ADP: siemens-SADP |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
NVD applicability configurations (12)
These expressions retain AND/OR operators, negation, and required environmental products. A listed product is not sufficient to establish exposure when additional conditions apply.
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.4.235",
"versionStartIncluding": "4.20",
"vulnerable": true
},
{
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"versionStartIncluding": "5.5",
"vulnerable": true
},
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"vulnerable": true
},
{
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"versionStartIncluding": "6.2",
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],
"operator": "OR"
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"nodes": [
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"operator": "OR"
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"nodes": [
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"operator": "OR"
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}
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"operator": "AND"
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{
"negate": false,
"nodes": [
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"vulnerable": true
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"negate": false,
"operator": "OR"
},
{
"cpeMatch": [
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],
"operator": "AND"
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{
"negate": false,
"nodes": [
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"vulnerable": true
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"operator": "OR"
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"negate": false,
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],
"operator": "AND"
},
{
"negate": false,
"nodes": [
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"cpeMatch": [
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"vulnerable": true
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],
"negate": false,
"operator": "OR"
},
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],
"negate": false,
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],
"operator": "AND"
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"negate": false,
"nodes": [
{
"cpeMatch": [
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"vulnerable": true
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"negate": false,
"operator": "OR"
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],
"operator": "AND"
}
]CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 7.0 high |
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD: [email protected] |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97CNA: redhat
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlCNA: redhat · mailing-list
- https://security.netapp.com/advisory/ntap-20230511-0002/CNA: redhat
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlCNA: redhat · mailing-list
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97ADP: CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlADP: CVE · mailing-list, x_transferred
- https://security.netapp.com/advisory/ntap-20230511-0002/ADP: CVE · x_transferred
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlADP: CVE · mailing-list, x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-794697.htmlADP: siemens-SADP
- https://cert-portal.siemens.com/productcert/html/ssa-398330.htmlADP: siemens-SADP
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97[email protected] · Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html[email protected] · Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html[email protected] · Mailing List
- https://security.netapp.com/advisory/ntap-20230511-0002/[email protected] · Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=7c4a5b89a0b5a57a64b601775b296abf77a9fe97af854a3a-2127-422b-91ae-364da2661108 · Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlaf854a3a-2127-422b-91ae-364da2661108 · Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlaf854a3a-2127-422b-91ae-364da2661108 · Mailing List
- https://security.netapp.com/advisory/ntap-20230511-0002/af854a3a-2127-422b-91ae-364da2661108 · Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
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