{"id":"CVE-2025-21998","state":"PUBLISHED","title":"firmware: qcom: uefisecapp: fix efivars registration race","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: uefisecapp: fix efivars registration race\n\nSince the conversion to using the TZ allocator, the efivars service is\nregistered before the memory pool has been allocated, something which\ncan lead to a NULL-pointer dereference in case of a racing EFI variable\naccess.\n\nMake sure that all resources have been set up before registering the\nefivars.","publishedAt":"2025-04-03T07:19:02.272Z","updatedAt":"2026-05-11T21:10:40.246Z","severity":{"score":4.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"c4e37b381a7a243c298a4858fc0a5a74e737c79a","versionType":"git"},{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"f15a2b96a0e41c426c63a932d0e63cde7b9784aa","versionType":"git"},{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"da8d493a80993972c427002684d0742560f3be4a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.21","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.9","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"]}],"references":["https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a","https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa","https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21998.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21998","state":"PUBLISHED","datePublished":"2025-04-03T07:19:02.272Z","dateUpdated":"2026-05-11T21:10:40.246Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.801Z"},"containers":{"cna":{"title":"firmware: qcom: uefisecapp: fix efivars registration race","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: uefisecapp: fix efivars registration race\n\nSince the conversion to using the TZ allocator, the efivars service is\nregistered before the memory pool has been allocated, something which\ncan lead to a NULL-pointer dereference in case of a racing EFI variable\naccess.\n\nMake sure that all resources have been set up before registering the\nefivars."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"c4e37b381a7a243c298a4858fc0a5a74e737c79a","versionType":"git"},{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"f15a2b96a0e41c426c63a932d0e63cde7b9784aa","versionType":"git"},{"version":"6612103ec35af6058bb85ab24dae28e119b3c055","status":"affected","lessThan":"da8d493a80993972c427002684d0742560f3be4a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.21","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.9","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a"},{"url":"https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa"},{"url":"https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:10:40.246Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.21"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.13.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":4.7,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T17:10:57.712246Z","id":"CVE-2025-21998","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T17:11:00.349Z"}}]}}}