CVE-2024-56721

Source
https://nvd.nist.gov/vuln/detail/CVE-2024-56721
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-56721.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-56721
Downstream
Related
Published
2024-12-29T11:29:59Z
Modified
2025-10-17T19:11:16.727282Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
x86/CPU/AMD: Terminate the erratum_1386_microcode array
Details

In the Linux kernel, the following vulnerability has been resolved:

x86/CPU/AMD: Terminate the erratum1386microcode array

The erratum1386microcode array requires an empty entry at the end. Otherwise x86matchcpuwithstepping() will continue iterate the array after it ended.

Add an empty entry to erratum1386microcode to its end.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
29ba89f1895285f06c333546882e0c5ae9a6df23
Fixed
82d6b82cf89d950982ac240ba068c3a7e1f23b0a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
29ba89f1895285f06c333546882e0c5ae9a6df23
Fixed
ccfee14f08b8699132b87bc6d78e0fa75bf094dd
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
29ba89f1895285f06c333546882e0c5ae9a6df23
Fixed
ff6cdc407f4179748f4673c39b0921503199a0ad

Affected versions

v6.*

v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.11.10
v6.11.2
v6.11.3
v6.11.4
v6.11.5
v6.11.6
v6.11.7
v6.11.8
v6.11.9
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7

Database specific

vanir_signatures

[
    {
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ff6cdc407f4179748f4673c39b0921503199a0ad",
        "signature_version": "v1",
        "target": {
            "file": "arch/x86/kernel/cpu/amd.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "67568762080391875333684776631121639978",
                "228004631204117998113664143713912992516",
                "115690478112355922841322234113358799413",
                "68273369894354075660050683847714222625"
            ]
        },
        "id": "CVE-2024-56721-274b312a"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@ccfee14f08b8699132b87bc6d78e0fa75bf094dd",
        "signature_version": "v1",
        "target": {
            "file": "arch/x86/kernel/cpu/amd.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "67568762080391875333684776631121639978",
                "228004631204117998113664143713912992516",
                "115690478112355922841322234113358799413",
                "68273369894354075660050683847714222625"
            ]
        },
        "id": "CVE-2024-56721-d403b1b3"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@82d6b82cf89d950982ac240ba068c3a7e1f23b0a",
        "signature_version": "v1",
        "target": {
            "file": "arch/x86/kernel/cpu/amd.c"
        },
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "67568762080391875333684776631121639978",
                "228004631204117998113664143713912992516",
                "115690478112355922841322234113358799413",
                "68273369894354075660050683847714222625"
            ]
        },
        "id": "CVE-2024-56721-f9fd8a30"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.10.0
Fixed
6.11.11
Type
ECOSYSTEM
Events
Introduced
6.12.0
Fixed
6.12.2