{"api_version":"1","generated_at":"2026-07-13T07:00:35+00:00","cve":"CVE-2026-53344","urls":{"html":"https://cve.report/CVE-2026-53344","api":"https://cve.report/api/cve/CVE-2026-53344.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53344","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53344"},"summary":{"title":"pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init\n\nRegmap initialization triggers regcache_maple_populate() which attempts\nSPI read to populate cache. SPI read requires mcp->dev and mcp->addr to\nbe set, without them, NULL pointer dereference occurs during probe.\n\nMove initialization before mcp23s08_spi_regmap_init() call.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-01 14:16:42","updated_at":"2026-07-01 14:16:42"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673","name":"https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4","name":"https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53344","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53344","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9f4fda15e720686f1b2b436591ab11255e4e85e 3a13bb9540dfd7014c5601608afcbbadbbcfd673 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f9f4fda15e720686f1b2b436591ab11255e4e85e 8473c3a197b57ff01396f7a2ec6ddf65383820d4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53344","cve":"CVE-2026-53344","epss":"0.001450000","percentile":"0.040900000","score_date":"2026-07-04","updated_at":"2026-07-05 00:02:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pinctrl/pinctrl-mcp23s08_spi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3a13bb9540dfd7014c5601608afcbbadbbcfd673","status":"affected","version":"f9f4fda15e720686f1b2b436591ab11255e4e85e","versionType":"git"},{"lessThan":"8473c3a197b57ff01396f7a2ec6ddf65383820d4","status":"affected","version":"f9f4fda15e720686f1b2b436591ab11255e4e85e","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/pinctrl/pinctrl-mcp23s08_spi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init\n\nRegmap initialization triggers regcache_maple_populate() which attempts\nSPI read to populate cache. SPI read requires mcp->dev and mcp->addr to\nbe set, without them, NULL pointer dereference occurs during probe.\n\nMove initialization before mcp23s08_spi_regmap_init() call."}],"providerMetadata":{"dateUpdated":"2026-07-01T13:32:24.546Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3a13bb9540dfd7014c5601608afcbbadbbcfd673"},{"url":"https://git.kernel.org/stable/c/8473c3a197b57ff01396f7a2ec6ddf65383820d4"}],"title":"pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53344","datePublished":"2026-07-01T13:32:24.546Z","dateReserved":"2026-06-09T07:44:35.399Z","dateUpdated":"2026-07-01T13:32:24.546Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-01 14:16:42","lastModifiedDate":"2026-07-01 14:16:42","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53344","Ordinal":"1","Title":"pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regm","CVE":"CVE-2026-53344","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53344","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regmap init\n\nRegmap initialization triggers regcache_maple_populate() which attempts\nSPI read to populate cache. SPI read requires mcp->dev and mcp->addr to\nbe set, without them, NULL pointer dereference occurs during probe.\n\nMove initialization before mcp23s08_spi_regmap_init() call.","Type":"Description","Title":"pinctrl: mcp23s08: Initialize mcp->dev and mcp->addr before regm"}]}}}