Improper resource shutdown or release in Linux kernel - CVE-2026-74459
Published: August 16, 2026
Vulnerability identifier: #VU143323
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-74459
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper resource shutdown or release in es58x_read_bulk_callback() in the etas_es58x CAN USB driver when handling a failed RX URB resubmission. A local user can trigger a URB resubmission failure to cause a denial of service.
Affected software
Linux kernel
Debian Linux
linux (Debian package)
Debian Linux
linux (Debian package)
How to mitigate CVE-2026-74459
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
linux (Debian package) - update to 6.12.105-1
linux (Debian package) - update to 6.12.105-1
External References
- https://git.kernel.org/stable/c/0ef136ba052101243ba117a1aca6f4a4c3a81142
- https://git.kernel.org/stable/c/19c6c8c6cd5dd14fab5fcd744584812a57cbb78d
- https://git.kernel.org/stable/c/7a0cf2b2497c757c3cb1286eddf2986abb0d387b
- https://git.kernel.org/stable/c/b85e5c310382803d27adf6fe6554d4208bc8951c
- https://git.kernel.org/stable/c/c311f17c261fd375ddf5755f2ebe1f022c19c5b0