{"id":"CVE-2026-98681","aliases":[],"cve":{"records":[{"id":"CVE-2026-98681","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.364Z","published":"2026-10-18T15:45:45.654Z","modified":"2026-10-30T12:38:43.025Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-10-30T12:38:43.025Z"}],"references":[{"url":"https://git.kernel.org/stable/c/f255e87b4f7eda568c37d6eae5db1d1a8aca5968","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/7fa619367869be705942f087b2ecd209efc78fe1","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/e961baf9c1a4f2e93a55f8eb2c6151fc27b96a4c","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/3b8e7928cf1928555dc05d172dd02fb0e7692ec4","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/3786ee67658a2c80fef2544e7de2cd329e043cf9","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/4165641d06ef44f3a31b77a28048b6c737e885e7","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/d9d23d115610e0342e768f6cb525d91c7b154027","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/19465a9aeb664f1d710d0d22c07c31bfb7c85446","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"7.3"}]}]}]}],"prioritization":[]},"title":"smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races\n\nThe invalidHandle, swapfile, oplock_break_cancelled, offload,\nand status_file_deleted fields are stored in the same bitfield byte\nin struct cifsFileInfo, but are updated in different code paths that\nmay run simultaneously, and are protected by different locks.  Since\nbitfield assignments generate byte-level read-modify-write operations,\na modification to one flag can overwrite a concurrent modification to\nanother flag.\n\nTo avoid these races, convert these flags from a bitfield to\nseparate bool fields.","score":null,"severity":"unknown","published":"2026-10-18T15:45:45.654Z","modified":"2026-10-30T12:38:43.025Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"f255e87b4f7eda568c37d6eae5db1d1a8aca5968","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"7fa619367869be705942f087b2ecd209efc78fe1","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"e961baf9c1a4f2e93a55f8eb2c6151fc27b96a4c","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"3b8e7928cf1928555dc05d172dd02fb0e7692ec4","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"3786ee67658a2c80fef2544e7de2cd329e043cf9","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"4165641d06ef44f3a31b77a28048b6c737e885e7","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"d9d23d115610e0342e768f6cb525d91c7b154027","versionType":"git"},{"version":"3bc303c254335dbd7c7012cc1760b12f1d5514d3","status":"affected","lessThan":"19465a9aeb664f1d710d0d22c07c31bfb7c85446","versionType":"git"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98681"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-98681"}],"remediation":[],"references":["https://git.kernel.org/stable/c/f255e87b4f7eda568c37d6eae5db1d1a8aca5968","https://git.kernel.org/stable/c/7fa619367869be705942f087b2ecd209efc78fe1","https://git.kernel.org/stable/c/e961baf9c1a4f2e93a55f8eb2c6151fc27b96a4c","https://git.kernel.org/stable/c/3b8e7928cf1928555dc05d172dd02fb0e7692ec4","https://git.kernel.org/stable/c/3786ee67658a2c80fef2544e7de2cd329e043cf9","https://git.kernel.org/stable/c/4165641d06ef44f3a31b77a28048b6c737e885e7","https://git.kernel.org/stable/c/d9d23d115610e0342e768f6cb525d91c7b154027","https://git.kernel.org/stable/c/19465a9aeb664f1d710d0d22c07c31bfb7c85446"],"sources":[{"name":"CVE","id":"CVE-2026-98681","modified":"2026-10-30T12:38:43.025Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-98681"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-10-30T14:02:15.543Z","kev":{"status":"not-listed","checkedAt":"2026-11-14T22:40:32.870Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}