{"id":"CVE-2023-53251","state":"PUBLISHED","title":"wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()\n\nrxq can be NULL only when trans_pcie->rxq is NULL and entry->entry\nis zero. For the case when entry->entry is not equal to 0, rxq\nwon't be NULL even if trans_pcie->rxq is NULL. Modify checker to\ncheck for trans_pcie->rxq.","publishedAt":"2025-09-15T14:46:20.886Z","updatedAt":"2026-05-11T19:41:10.094Z","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":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"2d690495eb2766d58e25c83676f422219c4fcf18","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"390e44efcf4d390b5053ad112553155d2d097c73","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"f71d0fc407dd028416bec002ddcc62f5acb0346a","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"1902f1953b8ba100ee8705cb8a6f1a9795550eca","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/pcie/rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"5.15.121","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.39","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.13","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4.4","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/pcie/rx.c"]}],"references":["https://git.kernel.org/stable/c/3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2","https://git.kernel.org/stable/c/2d690495eb2766d58e25c83676f422219c4fcf18","https://git.kernel.org/stable/c/390e44efcf4d390b5053ad112553155d2d097c73","https://git.kernel.org/stable/c/f71d0fc407dd028416bec002ddcc62f5acb0346a","https://git.kernel.org/stable/c/1902f1953b8ba100ee8705cb8a6f1a9795550eca"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/53xxx/CVE-2023-53251.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53251","state":"PUBLISHED","datePublished":"2025-09-15T14:46:20.886Z","dateUpdated":"2026-05-11T19:41:10.094Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T14:19:21.849Z"},"containers":{"cna":{"title":"wifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: pcie: fix NULL pointer dereference in iwl_pcie_irq_rx_msix_handler()\n\nrxq can be NULL only when trans_pcie->rxq is NULL and entry->entry\nis zero. For the case when entry->entry is not equal to 0, rxq\nwon't be NULL even if trans_pcie->rxq is NULL. Modify checker to\ncheck for trans_pcie->rxq."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"2d690495eb2766d58e25c83676f422219c4fcf18","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"390e44efcf4d390b5053ad112553155d2d097c73","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"f71d0fc407dd028416bec002ddcc62f5acb0346a","versionType":"git"},{"version":"abc599efa67bb4138536360e07d677052b19e392","status":"affected","lessThan":"1902f1953b8ba100ee8705cb8a6f1a9795550eca","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/pcie/rx.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.12","versionType":"semver"},{"version":"5.15.121","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.39","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.3.13","status":"unaffected","lessThanOrEqual":"6.3.*","versionType":"semver"},{"version":"6.4.4","status":"unaffected","lessThanOrEqual":"6.4.*","versionType":"semver"},{"version":"6.5","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/intel/iwlwifi/pcie/rx.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3b9de981fe7f1c6e07c7b852421ad69be3d4b6c2"},{"url":"https://git.kernel.org/stable/c/2d690495eb2766d58e25c83676f422219c4fcf18"},{"url":"https://git.kernel.org/stable/c/390e44efcf4d390b5053ad112553155d2d097c73"},{"url":"https://git.kernel.org/stable/c/f71d0fc407dd028416bec002ddcc62f5acb0346a"},{"url":"https://git.kernel.org/stable/c/1902f1953b8ba100ee8705cb8a6f1a9795550eca"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:41:10.094Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"5.15.121"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.1.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.3.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.4.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12","versionEndExcluding":"6.5"}]}]}],"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-2023-53251","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T18:00:25.796184Z"}}}],"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":"2026-01-14T18:02:52.107Z"}}]}}}