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

bpf: Fix stackmap overflow check in __bpf_get_stackid()

Syzkaller reported a KASAN slab-out-of-bounds write in __bpf_get_stackid()
when copying stack trace data. The issue occurs when the perf trace
contains more stack entries than the stack map bucket can hold,
leading to an out-of-bounds write in the bucket's data array.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00025.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
ee2a098851bfbe8bcdd964c0121f4246f00ff41e affected < d1f424a77b6bd27b361737ed73df49a0158f1590
ee2a098851bfbe8bcdd964c0121f4246f00ff41e affected < 2a008f6de163279deffd488c1deab081bce5667c
ee2a098851bfbe8bcdd964c0121f4246f00ff41e affected < 4669a8db976c8cbd5427fe9945f12c5fa5168ff3
ee2a098851bfbe8bcdd964c0121f4246f00ff41e affected < 23f852daa4bab4d579110e034e4d513f7d490846
90805175a206f784b6a77f16f07b07f6803e286b affected —
398ac11f4425d1e52aaf0d05d4fc90524e1a5b5e affected —
e750f78c4ed7cefbcefb9769b3b9e08033db39da affected —
6c4f243b58f5362e983386488b2d563764c567af affected —
Linux Linux affected
Version Status Constraints
5.18 affected —
0 unaffected < 5.18
6.12.63 unaffected ≤ 6.12.*
6.17.13 unaffected ≤ 6.17.*
6.18.2 unaffected ≤ 6.18.*
6.19 unaffected ≤ *

No data.

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/23f852daa4bab4d579110e034e4d513f7d490846 cve-icon cve-icon
https://git.kernel.org/stable/c/2a008f6de163279deffd488c1deab081bce5667c cve-icon cve-icon
https://git.kernel.org/stable/c/4669a8db976c8cbd5427fe9945f12c5fa5168ff3 cve-icon cve-icon
https://git.kernel.org/stable/c/d1f424a77b6bd27b361737ed73df49a0158f1590 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025122403-CVE-2025-68378-60d1@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-68378 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-68378 cve-icon
History

Fri, 26 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Wed, 24 Dec 2025 10:45:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: bpf: Fix stackmap overflow check in __bpf_get_stackid() Syzkaller reported a KASAN slab-out-of-bounds write in __bpf_get_stackid() when copying stack trace data. The issue occurs when the perf trace contains more stack entries than the stack map bucket can hold, leading to an out-of-bounds write in the bucket's data array.
Title bpf: Fix stackmap overflow check in __bpf_get_stackid()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-02-09T08:32:16.792Z

Reserved: 2025-12-16T14:48:05.311Z

Link: CVE-2025-68378

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-24T11:16:01.390

Modified: 2025-12-29T15:58:34.503

Link: CVE-2025-68378

cve-icon Redhat

Severity : Low

Publid Date: 2025-12-24T00:00:00Z

Links: CVE-2025-68378 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.