{"id":"CVE-2026-74362","state":"PUBLISHED","title":"ext2: fix ignored return value of generic_write_sync()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next2: fix ignored return value of generic_write_sync()\n\nFix ext2_dio_write_iter() to propagate the error returned by\ngeneric_write_sync() instead of silently discarding it, which could\ncause write(2) to return success to userspace on O_SYNC/O_DSYNC files\neven when the sync failed.\n\nThe correct pattern, already used in ext2_dax_write_iter() in the same\nfile and in ext4, xfs, f2fs among others, is:\n    if (ret > 0)\n        ret = generic_write_sync(iocb, ret);\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[JK: Reflect also filemap_write_and_wait() return value]","publishedAt":"2026-08-15T05:58:45.553Z","updatedAt":"2026-08-17T05:17:56.829Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"8990dbb7065b0b002b1e58b9091a5b61f5e94dbe","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"8d70b3973020e59845c0bdad90e0b9c2295fd493","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"ffa974b2f50ad8b911b9066d7aed84ad0afabcdb","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"b6bc07e49a5fbb335f56eb90cd63dec6584c77d3","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"a4659be0bc7cb1856ffb15b67f903229ae8891ec","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/file.c"]}],"references":["https://git.kernel.org/stable/c/8990dbb7065b0b002b1e58b9091a5b61f5e94dbe","https://git.kernel.org/stable/c/8d70b3973020e59845c0bdad90e0b9c2295fd493","https://git.kernel.org/stable/c/ffa974b2f50ad8b911b9066d7aed84ad0afabcdb","https://git.kernel.org/stable/c/b6bc07e49a5fbb335f56eb90cd63dec6584c77d3","https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74362.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74362","state":"PUBLISHED","datePublished":"2026-08-15T05:58:45.553Z","dateUpdated":"2026-08-17T05:17:56.829Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.887Z"},"containers":{"cna":{"title":"ext2: fix ignored return value of generic_write_sync()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next2: fix ignored return value of generic_write_sync()\n\nFix ext2_dio_write_iter() to propagate the error returned by\ngeneric_write_sync() instead of silently discarding it, which could\ncause write(2) to return success to userspace on O_SYNC/O_DSYNC files\neven when the sync failed.\n\nThe correct pattern, already used in ext2_dax_write_iter() in the same\nfile and in ext4, xfs, f2fs among others, is:\n    if (ret > 0)\n        ret = generic_write_sync(iocb, ret);\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n[JK: Reflect also filemap_write_and_wait() return value]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"8990dbb7065b0b002b1e58b9091a5b61f5e94dbe","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"8d70b3973020e59845c0bdad90e0b9c2295fd493","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"ffa974b2f50ad8b911b9066d7aed84ad0afabcdb","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"b6bc07e49a5fbb335f56eb90cd63dec6584c77d3","versionType":"git"},{"version":"fb5de4358e1aa4753dce73c4dc1aca73ff39cedd","status":"affected","lessThan":"a4659be0bc7cb1856ffb15b67f903229ae8891ec","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.5","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext2/file.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8990dbb7065b0b002b1e58b9091a5b61f5e94dbe"},{"url":"https://git.kernel.org/stable/c/8d70b3973020e59845c0bdad90e0b9c2295fd493"},{"url":"https://git.kernel.org/stable/c/ffa974b2f50ad8b911b9066d7aed84ad0afabcdb"},{"url":"https://git.kernel.org/stable/c/b6bc07e49a5fbb335f56eb90cd63dec6584c77d3"},{"url":"https://git.kernel.org/stable/c/a4659be0bc7cb1856ffb15b67f903229ae8891ec"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:17:56.829Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}