CVE-2026-23082
CVE-2026-23082 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (2nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-5460
- Weakness: CWE-835
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.
Frequently asked questions
- What is CVE-2026-23082?
- In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.
- How severe is CVE-2026-23082?
- CVE-2026-23082 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2026-23082 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-23082?
- CVE-2026-23082 primarily affects Linux Linux Kernel. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-23082?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-23082 have an EU (EUVD) identifier?
- Yes. CVE-2026-23082 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5460.
- When was CVE-2026-23082 published?
- CVE-2026-23082 was published on 2026-02-04 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7
- https://git.kernel.org/stable/c/aa8a8866c533a150be4763bcb27993603bd5426c
- https://git.kernel.org/stable/c/c3edc14da81a8d8398682f6e4ab819f09f37c0b7
- https://git.kernel.org/stable/c/c610b550ccc0438d456dfe1df9f4f36254ccaae3
- https://git.kernel.org/stable/c/ce4352057fc5a986c76ece90801b9755e7c6e56c
- https://git.kernel.org/stable/c/da01de754e455e2598a7f1ce4ff2078c4f0ecde1
Affected products (3)
- cpe:2.3:o:linux:linux_kernel:6.12.67:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.18.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
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