net: dsa: mv88e6xxx: Correct check for empty list
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Correct check for empty list Since commit a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") mv88e6xxx_default_mdio_bus() has checked that the return value of list_first_entry() is non-NULL. This appears to be intended to guard against the list chip->mdios being empty. However, it is not the correct check as the implementation of list_first_entry is not designed to return NULL for empty lists. Instead, use list_first_entry_or_null() which does return NULL if the list is empty. Flagged by Smatch. Compile tested only.
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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 4.11 and later | 4.19.318, 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10 | Patch available | CNA |
- Linux VendorLinux Affected 4.11 and later Fixed in 4.19.318, 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.11 to before 4.19.318; 4.20 to before 5.4.280; 5.5 to before 5.10.222; 5.11 to before 5.15.163; 5.16 to before 6.1.98; 6.2 to before 6.6.39; 6.7 to before 6.9.9 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.11 to before 4.19.318; 4.20 to before 5.4.280; 5.5 to before 5.10.222; 5.11 to before 5.15.163; 5.16 to before 6.1.98; 6.2 to before 6.6.39; 6.7 to before 6.9.9 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.19.318, 5.4.280, 5.10.222, 5.15.163, 6.1.98, 6.6.39, 6.9.9, 6.10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
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-2024-42224
- 2026-10-03 Alias added: GHSA-3q3x-839r-4xrh
References
Patch 8
- https://git.kernel.org/stable/c/47d28dde172696031c880c5778633cdca30394ee
- https://git.kernel.org/stable/c/3bf8d70e1455f87856640c3433b3660a31001618
- https://git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5
- https://git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114
- https://git.kernel.org/stable/c/aa03f591ef31ba603a4a99d05d25a0f21ab1cd89
- https://git.kernel.org/stable/c/3f25b5f1635449036692a44b771f39f772190c1d
- https://git.kernel.org/stable/c/f75625db838ade28f032dacd0f0c8baca42ecde4
- https://git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b
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-2024-42224 · CVE Program
- CVE-2024-42224 · NVD
- FIRST EPSS
- GHSA-3q3x-839r-4xrh · GitHub Advisory Database · CC BY 4.0
- CVE-2024-42224 · Red Hat security data · CC BY 4.0
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