CVE-2026-46074spi: ch341: fix memory leaks on probe failures
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: spi: ch341: fix memory leaks on probe failures Make sure to deregister the controller, disable pins, and kill and free the RX URB on probe failures to mirror disconnect and avoid memory leaks and use-after-free. Also add an explicit URB kill on disconnect for symmetry (even if that is not strictly required as USB core would have stopped it in the current setup).
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- 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
- Undergoing Analysis
- Record last updated
- Jun 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 8846739f52afa07e63395c80227dc544f54bd7b1 builds before 5c6518633702d7f7b1153e9d8e042af847f11ef3; from 8846739f52afa07e63395c80227dc544f54bd7b1 before ff8a7996dc8bf433efe2126ffdaee5b374a89e30; 8846739f52afa07e63395c80227dc544f54bd7b1 builds before 9bee2faf9e21c796d0d222c9d84a98f41bd303a0; from 8846739f52afa07e63395c80227dc544f54bd7b1 before b99e3ddb91b499d920e63a2daff8880be68cfe9e | CNA record |
linux linux_kernel linux:linux_kernel | from 6.11 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/5c6518633702d7f7b1153e9d8e042af847f11ef3patch
- https://git.kernel.org/stable/c/ff8a7996dc8bf433efe2126ffdaee5b374a89e30patch
- https://git.kernel.org/stable/c/9bee2faf9e21c796d0d222c9d84a98f41bd303a0patch
- https://git.kernel.org/stable/c/b99e3ddb91b499d920e63a2daff8880be68cfe9epatch
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.