net: stmmac: make sure that ptp_rate is not 0 before configuring EST
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: make sure that ptp_rate is not 0 before configuring EST If the ptp_rate recorded earlier in the driver happens to be 0, this bogus value will propagate up to EST configuration, where it will trigger a division by 0. Prevent this division by 0 by adding the corresponding check and error code.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.15.199, 6.1.162, 6.6.120, 6.12.34, 6.15.3, 6.16
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
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-2025-38125
- 2026-10-03 Alias added: GHSA-vr36-j5gc-36m5
- 2026-11-05 CISA SSVC decision points changed
References
Patch 6
- https://git.kernel.org/stable/c/b15c9a21950e1af6d440ce5a8edfa8a94b9acb9b
- https://git.kernel.org/stable/c/d6b0f7ed3e9b6c5e2e3a006c8f72c95aa4ac4b74
- https://git.kernel.org/stable/c/b92ec4a848728460f181def33735605f154d438f
- https://git.kernel.org/stable/c/451ee661d0f6272017fa012f99617101aa8ddf2c
- https://git.kernel.org/stable/c/d5e3bfdba0dc419499b801937128957f77503761
- https://git.kernel.org/stable/c/cbefe2ffa7784525ec5d008ba87c7add19ec631a
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- 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
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-38125 · CVE Program
- CVE-2025-38125 · NVD
- FIRST EPSS
- GHSA-vr36-j5gc-36m5 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-38125 · 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