{"cve":"CVE-2026-43393","nvd":{"published":"2026-05-08T15:16:50.693","modified":"2026-06-17T10:49:30.823","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()\n\nFix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,\nwe're not freeing the chunk map that we've just looked up.","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":["CWE-401"],"references":["https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5","https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab","https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a","https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-43393","score":0.00122,"percentile":0.01954,"date":"2026-11-01"},"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."]}