usb: ulpi: fix memory leak on ulpi_register() error paths
Priority LOW 24CWE-401Published · 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-401.
Summary
In the Linux kernel, the following vulnerability has been resolved: usb: ulpi: fix memory leak on ulpi_register() error paths Commit 01af542392b5 ("usb: ulpi: fix double free in ulpi_register_interface() error path") removed kfree(ulpi) from ulpi_register_interface() to fix a double-free when device_register() fails. But when ulpi_of_register() or ulpi_read_id() fail before device_register() is called, the ulpi allocation is leaked. Add kfree(ulpi) on both error paths to properly clean up the allocation.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00123 2nd percentileScored 2026-11-07
Fix Fixed Linux (Linux): 5.10.258, 5.15.209, 6.1.175 +6
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 | 5.10.253 to before 5.10.258; 5.15.203 to before 5.15.209; 6.1.168 to before 6.1.175; 6.6.134 to before 6.6.140; 6.12.81 to before 6.12.88; 6.18.22 to before 6.18.30; 6.19.12 to before 6.20 | 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 6.20 | Patch available | CNA |
| Linux | Linux | 7.0 and later | 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.253 to before 5.10.258; 5.15.203 to before 5.15.209; 6.1.168 to before 6.1.175; 6.6.134 to before 6.6.140; 6.12.81 to before 6.12.88; 6.18.22 to before 6.18.30; 6.19.12 to before 6.20 Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 6.20 Patch available CNA
- Linux VendorLinux Affected 7.0 and later Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1 Patch available CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.10.253 to before 5.10.258; 5.15.203 to before 5.15.209; 6.1.168 to before 6.1.175; 6.6.134 to before 6.6.140; 6.12.81 to before 6.12.88; 6.18.22 to before 6.18.30; 6.19.12 to before 7.0; 7.0.1 to before 7.0.7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:* | 7.0 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* | 7.0 rc7 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | 7.1 rc1 | Vulnerable | Linux |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | 7.1 rc2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.10.253 to before 5.10.258; 5.15.203 to before 5.15.209; 6.1.168 to before 6.1.175; 6.6.134 to before 6.6.140; 6.12.81 to before 6.12.88; 6.18.22 to before 6.18.30; 6.19.12 to before 7.0; 7.0.1 to before 7.0.7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.0:-:*:*:*:*:*:* Versions 7.0 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* Versions 7.0 rc7 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
- cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 6.20
- Fix · CNA Linux (Linux) Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, 6.18.30, 7.0.7, 7.1
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-2026-46109
- 2026-10-03 Alias added: GHSA-q7hg-qx63-q53r
- 2026-11-06 CISA SSVC decision points changed
References
Patch 8
- https://git.kernel.org/stable/c/0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c
- https://git.kernel.org/stable/c/f1b855c00988a9cb41134cab7cf9faedba775dd9
- https://git.kernel.org/stable/c/7bd61ed0bf9f4f1f2673d489b3bda1555b48d054
- https://git.kernel.org/stable/c/b0c0d44adb55c66663886cb6e30ee92cbb0f5385
- https://git.kernel.org/stable/c/be2c1d825f54277472c87019e82013ac534ddc4c
- https://git.kernel.org/stable/c/2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d
- https://git.kernel.org/stable/c/f30ccfc2985590b33a23a3d8bed7ca16c0af551b
- https://git.kernel.org/stable/c/0b9fcab1b8608d429e5f239afb197de928d4de7d
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- 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-2026-46109 · CVE Program
- CVE-2026-46109 · NVD
- FIRST EPSS
- GHSA-q7hg-qx63-q53r · GitHub Advisory Database · CC BY 4.0
- CVE-2026-46109 · Red Hat security data · CC BY 4.0
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