bpf: Fix stackmap overflow check in __bpf_get_stackid()
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.11, 5.16, 5.17, 5.18
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.63, 6.17.13, 6.18.2, 6.19
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68378
- 2026-10-03 Alias added: GHSA-v87c-3vwm-rvcr
- 2026-10-21 Fix available: Linux/[email protected], Linux/Linux@d6028caa0ee39dccd005468adfa3223b92bd3ad3 · CNA
- 2026-10-21 1 new reference · CNA
- 2026-10-30 Fix available: Linux/Linux@03fe4c886667b3a09b9d6afc03bbc68afb35c82b, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
References
Other 6
- https://git.kernel.org/stable/c/03fe4c886667b3a09b9d6afc03bbc68afb35c82b
- https://git.kernel.org/stable/c/d6028caa0ee39dccd005468adfa3223b92bd3ad3
- https://git.kernel.org/stable/c/d1f424a77b6bd27b361737ed73df49a0158f1590
- https://git.kernel.org/stable/c/2a008f6de163279deffd488c1deab081bce5667c
- https://git.kernel.org/stable/c/4669a8db976c8cbd5427fe9945f12c5fa5168ff3
- https://git.kernel.org/stable/c/23f852daa4bab4d579110e034e4d513f7d490846
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- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2025-68378 · CVE Program
- CVE-2025-68378 · NVD
- FIRST EPSS
- GHSA-v87c-3vwm-rvcr · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68378 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences