{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"bdaa8871b53fe9b1730ef64dda2fcd662fd83339","status":"affected","version":"763d61ded752fbb3116efc951eff4363f237b7e0","versionType":"git"},{"lessThan":"f85a42fb90399dedcf81c146d09c07e4548b1e8c","status":"affected","version":"c7d190bb07bf4e3b217c69370e94d1b4c80a40ad","versionType":"git"},{"lessThan":"4ea933a36a14bec19b71025cdd8407bafbd67ec1","status":"affected","version":"0b3ed3fa227ba778cabed96e7f8d84addb8bdf9c","versionType":"git"},{"lessThan":"1096397c31f6bffa95e77bdd18fbca085be83e10","status":"affected","version":"587afb06a5d1dc5092d3d9e9ac3ccf22094d50c6","versionType":"git"},{"lessThan":"600dcd548fb2b00a69f447684f52ba45d5a3540e","status":"affected","version":"977855894bca4b87afa50d21e3f3e85a5a0e901f","versionType":"git"},{"lessThan":"b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56","status":"affected","version":"1cd54e217c6e2cdb794a897b2f855e13ffcee586","versionType":"git"},{"lessThan":"8cbad52ccfa6a7f089cfab34979bc6cc3bff25be","status":"affected","version":"9690e8a342632344984af72bc56b7a1fba61e6cb","versionType":"git"},{"lessThan":"7fb13fd7e9a59a37cd911efff83abe19e3ee029d","status":"affected","version":"b1b4efea05a56c0995e4702a86d6624b4fdff32f","versionType":"git"}]},{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"5.10.266","status":"affected","version":"5.10.261","versionType":"semver"},{"lessThan":"5.15.217","status":"affected","version":"5.15.212","versionType":"semver"},{"lessThan":"6.1.183","status":"affected","version":"6.1.178","versionType":"semver"},{"lessThan":"6.6.148","status":"affected","version":"6.6.145","versionType":"semver"},{"lessThan":"6.12.101","status":"affected","version":"6.12.96","versionType":"semver"},{"lessThan":"6.18.42","status":"affected","version":"6.18.39","versionType":"semver"},{"lessThan":"7.1.6","status":"affected","version":"7.1.4","versionType":"semver"}]}],"cveId":"CVE-2026-68434","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms\n\nCommit b1b4efea05a5 (\"serial: 8250_mid: Disable DMA for selected\nplatforms\") replaced the dnv_board setup and exit callbacks with\nPTR_IF(false, ...), which evaluates to NULL. However, the three call\nsites in mid8250_probe() and mid8250_remove() unconditionally\ndereference these function pointers without NULL checks, causing a NULL\npointer dereference (kernel oops) on any Denverton (DNV), Ice Lake Xeon\nD (ICX-D/CDF), or Snowridge (SNR) platform.\n\nFix this by adding the missing NULL checks before calling the setup and\nexit callbacks.","epss":{"date":"2026-11-06","percentile":0.07344,"score":0.00177},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793985573380,"publishedAt":1786493241897,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/bdaa8871b53fe9b1730ef64dda2fcd662fd83339"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/f85a42fb90399dedcf81c146d09c07e4548b1e8c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/4ea933a36a14bec19b71025cdd8407bafbd67ec1"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/1096397c31f6bffa95e77bdd18fbca085be83e10"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/600dcd548fb2b00a69f447684f52ba45d5a3540e"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/8cbad52ccfa6a7f089cfab34979bc6cc3bff25be"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/7fb13fd7e9a59a37cd911efff83abe19e3ee029d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/1096397c31f6bffa95e77bdd18fbca085be83e10"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/4ea933a36a14bec19b71025cdd8407bafbd67ec1"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/600dcd548fb2b00a69f447684f52ba45d5a3540e"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/7fb13fd7e9a59a37cd911efff83abe19e3ee029d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/8cbad52ccfa6a7f089cfab34979bc6cc3bff25be"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/b2a3eeb57ba24f8a0e34a69d40adcc63e5b9ca56"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/bdaa8871b53fe9b1730ef64dda2fcd662fd83339"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/f85a42fb90399dedcf81c146d09c07e4548b1e8c"}],"remediation":[],"revision":"ea96e750375a64540df6edb54d63e825c1984e6eab348c9cd63d40042dab8b10","sources":[{"modifiedAt":1793984116879,"name":"CNA: Linux","retrievedAt":1793986006602,"url":"https://www.cve.org/CVERecord?id=CVE-2026-68434"},{"modifiedAt":1793985573380,"name":"NVD","retrievedAt":1793989653863,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68434"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793986039051,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-68434"}],"ssvc":{"assessedAt":1793983772358,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"serial: 8250_mid: Fix NULL function pointer dereference on DNV/ICX-D/SNR platforms","updatedAt":1793989653863}