net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()
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-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register() bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices. of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount. The current implementation does not decrement the refcount, which causes memory leak. This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.
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 | 5.10 and later | 5.10.224, 5.15.165, 6.1.105, 6.6.46, 6.10.5, 6.11 | Patch available | CNA |
- Linux VendorLinux Affected 5.10 and later Fixed in 5.10.224, 5.15.165, 6.1.105, 6.6.46, 6.10.5, 6.11 Patch available CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10 to before 5.10.224; 5.11 to before 5.15.165; 5.16 to before 6.1.105; 6.2 to before 6.6.46; 6.7 to before 6.10.5 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* | 6.11 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* | 6.11 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10 to before 5.10.224; 5.11 to before 5.15.165; 5.16 to before 6.1.105; 6.2 to before 6.6.46; 6.7 to before 6.10.5 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* Versions 6.11 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* Versions 6.11 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.224, 5.15.165, 6.1.105, 6.6.46, 6.10.5, 6.11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 4 products
- 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-2024-44971
- 2026-10-03 Alias added: GHSA-xqr4-wc4c-36xj
References
Patch 6
- https://git.kernel.org/stable/c/b7b8d9f5e679af60c94251fd6728dde34be69a71
- https://git.kernel.org/stable/c/c05516c072903f6fb9134b8e7e1ad4bffcdc4819
- https://git.kernel.org/stable/c/7feef10768ea71d468d9bbc1e0d14c461876768c
- https://git.kernel.org/stable/c/a7d2808d67570e6acae45c2a96e0d59986888e4c
- https://git.kernel.org/stable/c/f3d5efe18a11f94150fee8b3fda9d62079af640a
- https://git.kernel.org/stable/c/e3862093ee93fcfbdadcb7957f5f8974fffa806a
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- 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-2024-44971 · CVE Program
- CVE-2024-44971 · NVD
- FIRST EPSS
- GHSA-xqr4-wc4c-36xj · GitHub Advisory Database · CC BY 4.0
- CVE-2024-44971 · Red Hat security data · CC BY 4.0
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