{"id":"CVE-2023-53332","state":"PUBLISHED","title":"genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()\n\nIf ipi_send_{mask|single}() is called with an invalid interrupt number, all\nthe local variables there will be NULL. ipi_send_verify() which is invoked\nfrom these functions does verify its 'data' parameter, resulting in a\nkernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets\ndereferenced.\n\nAdd a missing NULL pointer check in ipi_send_verify()...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool.","publishedAt":"2025-09-16T16:12:07.573Z","updatedAt":"2026-05-11T19:42:54.034Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/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":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"926aef60ea64cd9becf2829f7388f48dbe8bcb11","versionType":"git"},{"version":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"7448c73d64075051f50caed2c62f46553b69ab8a","versionType":"git"},{"version":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"feabecaff5902f896531dde90646ca5dfa9d4f7d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/irq/ipi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.1.18","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.5","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/irq/ipi.c"]}],"references":["https://git.kernel.org/stable/c/926aef60ea64cd9becf2829f7388f48dbe8bcb11","https://git.kernel.org/stable/c/7448c73d64075051f50caed2c62f46553b69ab8a","https://git.kernel.org/stable/c/feabecaff5902f896531dde90646ca5dfa9d4f7d"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53332.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53332","state":"PUBLISHED","datePublished":"2025-09-16T16:12:07.573Z","dateUpdated":"2026-05-11T19:42:54.034Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-16T16:08:59.564Z"},"containers":{"cna":{"title":"genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngenirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask()\n\nIf ipi_send_{mask|single}() is called with an invalid interrupt number, all\nthe local variables there will be NULL. ipi_send_verify() which is invoked\nfrom these functions does verify its 'data' parameter, resulting in a\nkernel oops in irq_data_get_affinity_mask() as the passed NULL pointer gets\ndereferenced.\n\nAdd a missing NULL pointer check in ipi_send_verify()...\n\nFound by Linux Verification Center (linuxtesting.org) with the SVACE static\nanalysis tool."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"926aef60ea64cd9becf2829f7388f48dbe8bcb11","versionType":"git"},{"version":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"7448c73d64075051f50caed2c62f46553b69ab8a","versionType":"git"},{"version":"3b8e29a82dd16c1f2061e0b955a71cd36eeb061b","status":"affected","lessThan":"feabecaff5902f896531dde90646ca5dfa9d4f7d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/irq/ipi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.6","versionType":"semver"},{"version":"6.1.18","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2.5","status":"unaffected","lessThanOrEqual":"6.2.*","versionType":"semver"},{"version":"6.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/irq/ipi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/926aef60ea64cd9becf2829f7388f48dbe8bcb11"},{"url":"https://git.kernel.org/stable/c/7448c73d64075051f50caed2c62f46553b69ab8a"},{"url":"https://git.kernel.org/stable/c/feabecaff5902f896531dde90646ca5dfa9d4f7d"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:42:54.034Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.1.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.6","versionEndExcluding":"6.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2023-53332","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:30:29.380714Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-01-14T18:33:00.091Z"}}]}}}