forcedeth: fix UAF of txrx_stats in nv_remove
Priority LOW 35Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: forcedeth: fix UAF of txrx_stats in nv_remove nv_remove() frees the per-CPU txrx_stats before unregister_netdev(). Until unregister completes, ndo_get_stats64, the NAPI/xmit data path, and nv_close()/drain may still access txrx_stats, leading to a use-after-free. Free the stats only after unregister_netdev().
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00126 2nd percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.265, 5.15.216, 6.1.183 +5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 5.10.265, 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-74548
- 2026-10-03 Alias added: GHSA-xvfj-3828-276m
- 2026-10-18 CISA SSVC decision points changed
References
Other 8
- https://git.kernel.org/stable/c/cdf864d5d3c813ae1876f2bacc1cf3ac3c66dfc9
- https://git.kernel.org/stable/c/7c22b4ee0bd003cecfc14ca28981cb213e201f70
- https://git.kernel.org/stable/c/d51ce7a63b76eda02cabfed1b0cc277b2f5c9bcc
- https://git.kernel.org/stable/c/cf2dcde2284562ff87830ca0b7fa2b06e95aef1e
- https://git.kernel.org/stable/c/c9d24a205fd508b9999fcab6aca4c590490a12cf
- https://git.kernel.org/stable/c/ae20a8a4de06a289d40b0a0633d8d573f1fcb049
- https://git.kernel.org/stable/c/201e05aa531eba0dfe2ee05b4e178f6ffa12c8b1
- https://git.kernel.org/stable/c/22666ba1420164753d7b0f5a841986b25ace5435
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- 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-2026-74548 · CVE Program
- CVE-2026-74548 · NVD
- FIRST EPSS
- GHSA-xvfj-3828-276m · GitHub Advisory Database · CC BY 4.0
- CVE-2026-74548 · Red Hat security data · CC BY 4.0
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