CVE-2026-23037

can: etas_es58x: allow partial RX URB allocation to succeed

State: Published
Severity: Not scored
Published: Jan 31, 2026
Updated: Jun 2, 2026
Reserved: Jan 13, 2026

Description

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().

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	8537257874e949a59c834cecfd5a063e11b64b0b to before 97250eb05e4b6afe787290e8fd97d0675116c61bAffected 8537257874e949a59c834cecfd5a063e11b64b0b to before aec888f44853584b5a7cd01249806030cf94a73dAffected 8537257874e949a59c834cecfd5a063e11b64b0b to before 611e839d2d552416b498ed5593e10670f61fcd4dAffected 8537257874e949a59c834cecfd5a063e11b64b0b to before ba45e3d6b02c97dbb4578fbae7027fd66f3caa10Affected 8537257874e949a59c834cecfd5a063e11b64b0b to before 6c5124a60989051799037834f0a1a4b428718157Affected 8537257874e949a59c834cecfd5a063e11b64b0b to before b1979778e98569c1e78c2c7f16bb24d76541ab00Affected
LinuxLinux	5.13Affected before 5.13Not affected 5.15.199 through 5.15.Not affected 6.1.162 through 6.1.Not affected 6.6.122 through 6.6.Not affected 6.12.67 through 6.12.Not affected 6.18.7 through 6.18.*Not affected 6.19 and laterNot affected

Product

Versions

LinuxLinux

8537257874e949a59c834cecfd5a063e11b64b0b to before 97250eb05e4b6afe787290e8fd97d0675116c61bAffected
8537257874e949a59c834cecfd5a063e11b64b0b to before aec888f44853584b5a7cd01249806030cf94a73dAffected
8537257874e949a59c834cecfd5a063e11b64b0b to before 611e839d2d552416b498ed5593e10670f61fcd4dAffected
8537257874e949a59c834cecfd5a063e11b64b0b to before ba45e3d6b02c97dbb4578fbae7027fd66f3caa10Affected
8537257874e949a59c834cecfd5a063e11b64b0b to before 6c5124a60989051799037834f0a1a4b428718157Affected
8537257874e949a59c834cecfd5a063e11b64b0b to before b1979778e98569c1e78c2c7f16bb24d76541ab00Affected

LinuxLinux

5.13Affected
before 5.13Not affected
5.15.199 through 5.15.*Not affected
6.1.162 through 6.1.*Not affected
6.6.122 through 6.6.*Not affected
6.12.67 through 6.12.*Not affected
6.18.7 through 6.18.*Not affected
6.19 and laterNot affected

References

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