{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31744", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.138Z", "datePublished": "2026-05-01T14:14:38.820Z", "dateUpdated": "2026-05-01T14:14:38.820Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T14:14:38.820Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: EM: Fix NULL pointer dereference when perf domain ID is not found\n\ndev_energymodel_nl_get_perf_domains_doit() calls\nem_perf_domain_get_by_id() but does not check the return value before\npassing it to __em_nl_get_pd_size(). When a caller supplies a\nnon-existent perf domain ID, em_perf_domain_get_by_id() returns NULL,\nand __em_nl_get_pd_size() immediately dereferences pd->cpus\n(struct offset 0x30), causing a NULL pointer dereference.\n\nThe sister handler dev_energymodel_nl_get_perf_table_doit() already\nhandles this correctly via __em_nl_get_pd_table_id(), which returns\nNULL and causes the caller to return -EINVAL. Add the same NULL check\nin the get-perf-domains do handler.\n\n[ rjw: Subject and changelog edits ]"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/power/em_netlink.c"], "versions": [{"version": "380ff27af25e49e2cb2ff8fd0ecd7c95be2976ee", "lessThan": "ab09b9a1e3b02ff62c5aebe3b12b0cb4cb4ea8ab", "status": "affected", "versionType": "git"}, {"version": "380ff27af25e49e2cb2ff8fd0ecd7c95be2976ee", "lessThan": "9badc2a84e688be1275bb740942d5f6f51746908", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/power/em_netlink.c"], "versions": [{"version": "6.19", "status": "affected"}, {"version": "0", "lessThan": "6.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ab09b9a1e3b02ff62c5aebe3b12b0cb4cb4ea8ab"}, {"url": "https://git.kernel.org/stable/c/9badc2a84e688be1275bb740942d5f6f51746908"}], "title": "PM: EM: Fix NULL pointer dereference when perf domain ID is not found", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPM: EM: Fix NULL pointer dereference when perf domain ID is not found\n\ndev_energymodel_nl_get_perf_domains_doit() calls\nem_perf_domain_get_by_id() but does not check the return value before\npassing it to __em_nl_get_pd_size(). When a caller supplies a\nnon-existent perf domain ID, em_perf_domain_get_by_id() returns NULL,\nand __em_nl_get_pd_size() immediately dereferences pd->cpus\n(struct offset 0x30), causing a NULL pointer dereference.\n\nThe sister handler dev_energymodel_nl_get_perf_table_doit() already\nhandles this correctly via __em_nl_get_pd_table_id(), which returns\nNULL and causes the caller to return -EINVAL. Add the same NULL check\nin the get-perf-domains do handler.\n\n[ rjw: Subject and changelog edits ]"}], "id": "CVE-2026-31744", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:37.157", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9badc2a84e688be1275bb740942d5f6f51746908"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab09b9a1e3b02ff62c5aebe3b12b0cb4cb4ea8ab"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[380ff27af25e49e2cb2ff8fd0ecd7c95be2976ee,ab09b9a1e3b02ff62c5aebe3b12b0cb4cb4ea8ab)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[380ff27af25e49e2cb2ff8fd0ecd7c95be2976ee,9badc2a84e688be1275bb740942d5f6f51746908)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T18:30:05.211639+00:00", "updated": "2026-05-01T18:30:05.212495+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}