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CVE-2026-23037

can: etas_es58x: allow partial RX URB allocation to succeed PUBLISHED

Description (CNA)

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().

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 8537257874e949a59c834cecfd5a063e11b64b0b before 97250eb05e4b6afe787290e8fd97d0675116c61b; affected 8537257874e949a59c834cecfd5a063e11b64b0b before aec888f44853584b5a7cd01249806030cf94a73d; affected 8537257874e949a59c834cecfd5a063e11b64b0b before 611e839d2d552416b498ed5593e10670f61fcd4d; affected 8537257874e949a59c834cecfd5a063e11b64b0b before ba45e3d6b02c97dbb4578fbae7027fd66f3caa10; affected 8537257874e949a59c834cecfd5a063e11b64b0b before 6c5124a60989051799037834f0a1a4b428718157; affected 8537257874e949a59c834cecfd5a063e11b64b0b before b1979778e98569c1e78c2c7f16bb24d76541ab00
Linux / Linuxaffected 5.13; unaffected 0 before 5.13; unaffected 5.15.199 through 5.15.*; unaffected 6.1.162 through 6.1.*; unaffected 6.6.122 through 6.6.*; unaffected 6.12.67 through 6.12.*; unaffected 6.18.7 through 6.18.*; unaffected 6.19 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.