CVE-2026-23037
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().
How to fix
- Linux Linux97250eb05e4b6afe787290e8fd97d0675116c61b, aec888f44853584b5a7cd01249806030cf94a73d, 611e839d2d552416b498ed5593e10670f61fcd4d, ba45e3d6b02c97dbb4578fbae7027fd66f3caa10, 6c5124a60989051799037834f0a1a4b428718157, b1979778e98569c1e78c2c7f16bb24d76541ab00 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < 97250eb05e4b6afe787290e8fd97d0675116c61b, 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < aec888f44853584b5a7cd01249806030cf94a73d, 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < 611e839d2d552416b498ed5593e10670f61fcd4d, 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < ba45e3d6b02c97dbb4578fbae7027fd66f3caa10, 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < 6c5124a60989051799037834f0a1a4b428718157, 8537257874e949a59c834cecfd5a063e11b64b0b ≤ v < b1979778e98569c1e78c2c7f16bb24d76541ab00, 5.13 | 97250eb05e4b6afe787290e8fd97d0675116c61b, aec888f44853584b5a7cd01249806030cf94a73d, 611e839d2d552416b498ed5593e10670f61fcd4d, ba45e3d6b02c97dbb4578fbae7027fd66f3caa10, 6c5124a60989051799037834f0a1a4b428718157, b1979778e98569c1e78c2c7f16bb24d76541ab00 |
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