{"cve":"CVE-2026-43428","nvd":{"published":"2026-05-08T15:16:54.990","modified":"2026-06-17T10:49:34.820","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: core: Limit the length of unkillable synchronous timeouts\n\nThe usb_control_msg(), usb_bulk_msg(), and usb_interrupt_msg() APIs in\nusbcore allow unlimited timeout durations.  And since they use\nuninterruptible waits, this leaves open the possibility of hanging a\ntask for an indefinitely long time, with no way to kill it short of\nunplugging the target device.\n\nTo prevent this sort of problem, enforce a maximum limit on the length\nof these unkillable timeouts.  The limit chosen here, somewhat\narbitrarily, is 60 seconds.  On many systems (although not all) this\nis short enough to avoid triggering the kernel's hung-task detector.\n\nIn addition, clear up the ambiguity of negative timeout values by\ntreating them the same as 0, i.e., using the maximum allowed timeout.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/06d2bbc4c66c6b0e8a43728c4949026026a5be67","https://git.kernel.org/stable/c/1015c27a5e1a63efae2b18a9901494474b4d1dc3","https://git.kernel.org/stable/c/24b31a227f679a942d820840a4dea7f0c09a387f","https://git.kernel.org/stable/c/2d34cb4d1d6283b4be9c78f4a83ed6956d3069ec","https://git.kernel.org/stable/c/4e86f5b79e62ded7e3c3ebd688cf5775e618148a"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-43428","score":0.00123,"percentile":0.02021,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}