Not yet scoredPublished Jan 31, 2026

CVE-2026-23037can: etas_es58x: allow partial RX URB allocation to succeed

Updated under an hour ago (Oct 27, 2026, 11:10 AM ET)

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Exploited in the last 30 days

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().

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Jun 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	8537257874e949a59c834cecfd5a063e11b64b0b builds before 97250eb05e4b6afe787290e8fd97d0675116c61b; from 8537257874e949a59c834cecfd5a063e11b64b0b before aec888f44853584b5a7cd01249806030cf94a73d; 8537257874e949a59c834cecfd5a063e11b64b0b builds before 611e839d2d552416b498ed5593e10670f61fcd4d; from 8537257874e949a59c834cecfd5a063e11b64b0b before ba45e3d6b02c97dbb4578fbae7027fd66f3caa10; 8537257874e949a59c834cecfd5a063e11b64b0b builds before 6c5124a60989051799037834f0a1a4b428718157; from 8537257874e949a59c834cecfd5a063e11b64b0b before b1979778e98569c1e78c2c7f16bb24d76541ab00	CNA record
Siemens RUGGEDCOM RST2428P siemens:ruggedcom_rst2428p (from the name)	before V4.0	CISA ADP

References

References

https://git.kernel.org/stable/c/97250eb05e4b6afe787290e8fd97d0675116c61b
https://git.kernel.org/stable/c/aec888f44853584b5a7cd01249806030cf94a73d
https://git.kernel.org/stable/c/611e839d2d552416b498ed5593e10670f61fcd4d
https://git.kernel.org/stable/c/ba45e3d6b02c97dbb4578fbae7027fd66f3caa10
https://git.kernel.org/stable/c/6c5124a60989051799037834f0a1a4b428718157
https://git.kernel.org/stable/c/b1979778e98569c1e78c2c7f16bb24d76541ab00
https://cert-portal.siemens.com/productcert/html/ssa-253495.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.