{"api_version":"1","generated_at":"2026-10-29T10:25:53+00:00","cve":"CVE-2023-54026","urls":{"html":"https://cve.report/CVE-2023-54026","api":"https://cve.report/api/cve/CVE-2023-54026.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-54026","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-54026"},"summary":{"title":"opp: Fix use-after-free in lazy_opp_tables after probe deferral","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.","state":"PUBLISHED","assigner":"Linux","published_at":"2025-12-24 11:15:55","updated_at":"2026-08-04 10:19:25"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54","name":"https://git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0","name":"https://git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc","name":"https://git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d","name":"https://git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2023-54026","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54026","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 76ab057de777723ec924654502d1a260ba7d7d54 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 c05e76d6b249e5254c31994eedd06dd3cc90dee0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 b2a2ab039bd58f51355e33d7d3fc64605d7f870d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.121 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.40 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4.5 6.4.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.5 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2023","cve_id":"54026","cve":"CVE-2023-54026","epss":"0.001210000","percentile":"0.022700000","score_date":"2026-08-06","updated_at":"2026-08-07 00:14:20"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/opp/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc","status":"affected","version":"7eba0c7641b0009818e469dbfcdd87a0155ab9d4","versionType":"git"},{"lessThan":"76ab057de777723ec924654502d1a260ba7d7d54","status":"affected","version":"7eba0c7641b0009818e469dbfcdd87a0155ab9d4","versionType":"git"},{"lessThan":"c05e76d6b249e5254c31994eedd06dd3cc90dee0","status":"affected","version":"7eba0c7641b0009818e469dbfcdd87a0155ab9d4","versionType":"git"},{"lessThan":"b2a2ab039bd58f51355e33d7d3fc64605d7f870d","status":"affected","version":"7eba0c7641b0009818e469dbfcdd87a0155ab9d4","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/opp/core.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.121","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.40","versionType":"semver"},{"lessThanOrEqual":"6.4.*","status":"unaffected","version":"6.4.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.5","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.121","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.40","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.4.5","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.5","versionStartIncluding":"5.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-08-04T09:17:13.362Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc"},{"url":"https://git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54"},{"url":"https://git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0"},{"url":"https://git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d"}],"title":"opp: Fix use-after-free in lazy_opp_tables after probe deferral","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2023-54026","datePublished":"2025-12-24T10:55:55.182Z","dateReserved":"2025-12-24T10:53:46.179Z","dateUpdated":"2026-08-04T09:17:13.362Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-12-24 11:15:55","lastModifiedDate":"2026-08-04 10:19:25","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2023","CveId":"54026","Ordinal":"1","Title":"opp: Fix use-after-free in lazy_opp_tables after probe deferral","CVE":"CVE-2023-54026","Year":"2023"},"notes":[{"CveYear":"2023","CveId":"54026","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"opp: Fix use-after-free in lazy_opp_tables after probe deferral"}]}}}