{"cve":"CVE-2023-54026","nvd":{"published":"2025-12-24T11:15:55.610","modified":"2026-08-04T10:19:25.753","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nopp: Fix use-after-free in lazy_opp_tables after probe deferral\n\nWhen dev_pm_opp_of_find_icc_paths() in _allocate_opp_table() returns\n-EPROBE_DEFER, the opp_table is freed again, to wait until all the\ninterconnect paths are available.\n\nHowever, if the OPP table is using required-opps then it may already\nhave been added to the global lazy_opp_tables list. The error path\ndoes not remove the opp_table from the list again.\n\nThis can cause crashes later when the provider of the required-opps\nis added, since we will iterate over OPP tables that have already been\nfreed. E.g.:\n\n  Unable to handle kernel NULL pointer dereference when read\n  CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.4.0-rc3\n  PC is at _of_add_opp_table_v2 (include/linux/of.h:949\n  drivers/opp/of.c:98 drivers/opp/of.c:344 drivers/opp/of.c:404\n  drivers/opp/of.c:1032) -> lazy_link_required_opp_table()\n\nFix this by calling _of_clear_opp_table() to remove the opp_table from\nthe list and clear other allocated resources. While at it, also add the\nmissing mutex_destroy() calls in the error path.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc","https://git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54","https://git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d","https://git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2023-54026","score":0.0014,"percentile":0.03339,"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."]}