{"cve":"CVE-2023-54324","nvd":{"published":"2025-12-30T13:16:21.733","modified":"2026-06-17T06:47:13.727","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm: fix a race condition in retrieve_deps\n\nThere's a race condition in the multipath target when retrieve_deps\nraces with multipath_message calling dm_get_device and dm_put_device.\nretrieve_deps walks the list of open devices without holding any lock\nbut multipath may add or remove devices to the list while it is\nrunning. The end result may be memory corruption or use-after-free\nmemory access.\n\nSee this description of a UAF with multipath_message():\nhttps://listman.redhat.com/archives/dm-devel/2022-October/052373.html\n\nFix this bug by introducing a new rw semaphore \"devices_lock\". We grab\ndevices_lock for read in retrieve_deps and we grab it for write in\ndm_get_device and dm_put_device.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/38f6e5ae5d9ff4a4050ea6f7b543d5d5a4e087cf","https://git.kernel.org/stable/c/dbf1a719850577bb51fc7512a3972994b797a17b","https://git.kernel.org/stable/c/f6007dce0cd35d634d9be91ef3515a6385dcee16"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2023-54324","score":0.00186,"percentile":0.08185,"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."]}