net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable()
Priority LOW 24CWE-476Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() The function of_phy_find_device may return NULL, so we need to take care before dereferencing phy_dev.
Why it matters now
EPSS 0.00153 4th percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.4.300, 4.20, 5.9 +8
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.4.73 to before 5.4.300; 4.19.153 to before 4.20; 5.8.17 to before 5.9; 5.9.2 to before 5.10 | 5.4.300, 4.20, 5.9, 5.10 | Patch available | CNA |
| Linux | Linux | 5.10 and later | 5.4.300, 5.10.245, 5.15.194, 6.1.153, 6.6.107, 6.12.48, 6.16.8, 6.17 | Patch available | CNA |
- Linux VendorLinux Affected 5.4.73 to before 5.4.300; 4.19.153 to before 4.20; 5.8.17 to before 5.9; 5.9.2 to before 5.10 Fixed in 5.4.300, 4.20, 5.9, 5.10 Patch available CNA
- Linux VendorLinux Affected 5.10 and later Fixed in 5.4.300, 5.10.245, 5.15.194, 6.1.153, 6.6.107, 6.12.48, 6.16.8, 6.17 Patch available CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.19.153 to before 4.20; 5.4.73 to before 5.4.300; 5.8.17 to before 5.9; 5.9.2 to before 5.10.245; 5.11 to before 5.15.194; 5.16 to before 6.1.153; 6.2 to before 6.6.107; 6.7 to before 6.12.48; 6.13 to before 6.16.8 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* | 6.17 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* | 6.17 rc2 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* | 6.17 rc3 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* | 6.17 rc4 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:* | 6.17 rc5 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.19.153 to before 4.20; 5.4.73 to before 5.4.300; 5.8.17 to before 5.9; 5.9.2 to before 5.10.245; 5.11 to before 5.15.194; 5.16 to before 6.1.153; 6.2 to before 6.6.107; 6.7 to before 6.12.48; 6.13 to before 6.16.8 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:* Versions 6.17 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:* Versions 6.17 rc2 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:* Versions 6.17 rc3 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:* Versions 6.17 rc4 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:* Versions 6.17 rc5 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.300, 4.20, 5.9, 5.10
- Fix · CNA Linux (Linux) Fixed in 5.4.300, 5.10.245, 5.15.194, 6.1.153, 6.6.107, 6.12.48, 6.16.8, 6.17
Vendor assessments
Red Hat
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-2025-39876
- 2026-10-03 Alias added: GHSA-88fr-f63h-6pq4
References
Patch 8
- https://git.kernel.org/stable/c/8c60d12bba14dc655d2d948b1dbf390b3ae39cb8
- https://git.kernel.org/stable/c/20a3433d31c2d2bf70ab0abec75f3136b42ae66c
- https://git.kernel.org/stable/c/93a699d6e92cfdfa9eb9dbb8c653b5322542ca4f
- https://git.kernel.org/stable/c/5f1bb554a131e59b28482abad21f691390651752
- https://git.kernel.org/stable/c/fe78891f296ac05bf4e5295c9829ef822f3c32e7
- https://git.kernel.org/stable/c/4fe53aaa4271a72fe5fe3e88a45ce01646b68dc5
- https://git.kernel.org/stable/c/eb148d85e126c47d65be34f2a465d69432ca5541
- https://git.kernel.org/stable/c/03e79de4608bdd48ad6eec272e196124cefaf798
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- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2025-39876 · CVE Program
- CVE-2025-39876 · NVD
- FIRST EPSS
- GHSA-88fr-f63h-6pq4 · GitHub Advisory Database · CC BY 4.0
- CVE-2025-39876 · Red Hat security data · CC BY 4.0
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