{"id":"CVE-2026-98267","state":"PUBLISHED","title":"9p: Fix v9fs_issue_write() to update i_size and remote_i_size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\n9p: Fix v9fs_issue_write() to update i_size and remote_i_size\n\nFix v9fs_issue_write() to update i_size and remote_i_size to the new size\nof the server file if we made it larger, using the start fpos and the count\nreturned by p9_client_write() to calculate the new minimum file size.\n\nThis assumes that if the 9P server makes a short write (say it hits\nENOSPC), a reduced count is returned.","publishedAt":"2026-10-06T08:45:30.042Z","updatedAt":"2026-10-19T09:16:38.154Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"aeb1fe55583836744aef11fbfa2a09122aa9816c","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"88871ab548c1d7b11cde9b04063f3c1c6fbd7039","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"9cd92e3392bdd14568e9e44aec1ac05e1fcd62e5","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"c60ae98c5aa64021751b38ab1313b19d620bf640","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/9p/vfs_addr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/9p/vfs_addr.c"]}],"references":["https://git.kernel.org/stable/c/aeb1fe55583836744aef11fbfa2a09122aa9816c","https://git.kernel.org/stable/c/88871ab548c1d7b11cde9b04063f3c1c6fbd7039","https://git.kernel.org/stable/c/9cd92e3392bdd14568e9e44aec1ac05e1fcd62e5","https://git.kernel.org/stable/c/c60ae98c5aa64021751b38ab1313b19d620bf640"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98267.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98267","state":"PUBLISHED","datePublished":"2026-10-06T08:45:30.042Z","dateUpdated":"2026-10-19T09:16:38.154Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.333Z"},"containers":{"cna":{"title":"9p: Fix v9fs_issue_write() to update i_size and remote_i_size","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\n9p: Fix v9fs_issue_write() to update i_size and remote_i_size\n\nFix v9fs_issue_write() to update i_size and remote_i_size to the new size\nof the server file if we made it larger, using the start fpos and the count\nreturned by p9_client_write() to calculate the new minimum file size.\n\nThis assumes that if the 9P server makes a short write (say it hits\nENOSPC), a reduced count is returned."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"aeb1fe55583836744aef11fbfa2a09122aa9816c","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"88871ab548c1d7b11cde9b04063f3c1c6fbd7039","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"9cd92e3392bdd14568e9e44aec1ac05e1fcd62e5","versionType":"git"},{"version":"5fb70e7275a61dd404f684370e1add7fe0ebe9c5","status":"affected","lessThan":"c60ae98c5aa64021751b38ab1313b19d620bf640","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/9p/vfs_addr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/9p/vfs_addr.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/aeb1fe55583836744aef11fbfa2a09122aa9816c"},{"url":"https://git.kernel.org/stable/c/88871ab548c1d7b11cde9b04063f3c1c6fbd7039"},{"url":"https://git.kernel.org/stable/c/9cd92e3392bdd14568e9e44aec1ac05e1fcd62e5"},{"url":"https://git.kernel.org/stable/c/c60ae98c5aa64021751b38ab1313b19d620bf640"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:16:38.154Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}