{"cve":"CVE-2023-52646","nvd":{"published":"2024-04-26T13:15:46.453","modified":"2026-06-17T06:43:15.010","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naio: fix mremap after fork null-deref\n\nCommit e4a0d3e720e7 (\"aio: Make it possible to remap aio ring\") introduced\na null-deref if mremap is called on an old aio mapping after fork as\nmm->ioctx_table will be set to NULL.\n\n[jmoyer@redhat.com: fix 80 column issue]","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-476"],"references":["https://git.kernel.org/stable/c/178993157e8c50aef7f35d7d6d3b44bb428199e1","https://git.kernel.org/stable/c/4326d0080f7e84fba775da41d158f46cf9d3f1c2","https://git.kernel.org/stable/c/808f1e4b5723ae4eda724d2ad6f6638905eefd95","https://git.kernel.org/stable/c/81e9d6f8647650a7bead74c5f926e29970e834d1","https://git.kernel.org/stable/c/af126acf01a12bdb04986fd26fc2eb3b40249e0d"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:49:08.435428910+00:00"},"epss":{"cve":"CVE-2023-52646","score":0.00238,"percentile":0.14935,"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."]}