{"cve":"CVE-2022-50541","nvd":{"published":"2025-10-07T16:15:38.437","modified":"2026-06-17T05:23:45.290","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: ti: k3-udma: Reset UDMA_CHAN_RT byte counters to prevent overflow\n\nUDMA_CHAN_RT_*BCNT_REG stores the real-time channel bytecount statistics.\nThese registers are 32-bit hardware counters and the driver uses these\ncounters to monitor the operational progress status for a channel, when\ntransferring more than 4GB of data it was observed that these counters\noverflow and completion calculation of a operation gets affected and the\ntransfer hangs indefinitely.\n\nThis commit adds changes to decrease the byte count for every complete\ntransaction so that these registers never overflow and the proper byte\ncount statistics is maintained for ongoing transaction by the RT counters.\n\nEarlier uc->bcnt used to maintain a count of the completed bytes at driver\nside, since the RT counters maintain the statistics of current transaction\nnow, the maintenance of uc->bcnt is not necessary.","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/7c94dcfa8fcff2dba53915f1dabfee49a3df8b88","https://git.kernel.org/stable/c/a065657643a62a24b4435ddcaea45f1e9378749e","https://git.kernel.org/stable/c/d68da10b0cceb4177b653833e794b2923a4ffbd7","https://git.kernel.org/stable/c/e0b16bfbd3a4a8d09614046335f4482313e7c0c4"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2022-50541","score":0.00159,"percentile":0.05025,"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."]}