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CVE-2026-23037
Linux Kernel vulnerability analysis and mitigation

In the Linux kernel, the following vulnerability has been resolved:

can: etas_es58x: allow partial RX URB allocation to succeed

When es58x_alloc_rx_urbs() fails to allocate the requested number of URBs but succeeds in allocating some, it returns an error code. This causes es58x_open() to return early, skipping the cleanup label 'free_urbs', which leads to the anchored URBs being leaked.

As pointed out by maintainer Vincent Mailhol, the driver is designed to handle partial URB allocation gracefully. Therefore, partial allocation should not be treated as a fatal error.

Modify es58x_alloc_rx_urbs() to return 0 if at least one URB has been allocated, restoring the intended behavior and preventing the leak in es58x_open().


SourceNVD

Related Linux Kernel vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23395CRITICAL9.1
  • Linux KernelLinux Kernel
  • kernel-rt-64k-debug-devel-matched
NoYesMar 25, 2026
CVE-2026-23399MEDIUM6.5
  • Linux KernelLinux Kernel
  • kernel-rt-64k-debug-devel-matched
NoYesMar 28, 2026
CVE-2026-23398MEDIUM6.5
  • Linux KernelLinux Kernel
  • kernel-abi-stablelists
NoYesMar 26, 2026
CVE-2026-23397MEDIUM4.4
  • Linux KernelLinux Kernel
  • kernel-devel
NoYesMar 26, 2026
CVE-2026-31788N/AN/A
  • Linux KernelLinux Kernel
  • kernel-rt-trace-kvm
NoYesMar 25, 2026

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