CVE-2026-74362
In the Linux kernel, the following vulnerability has been resolved: ext2: fix ignored return value of generic_write_sync() Fix ext2_dio_write_iter() to propagate the error returned by generic_write_sync() instead of silently discarding it, which could cause write(2) to return success to userspace on O_SYNC/O_DSYNC files even when the sync failed. The correct pattern, already used in ext2_dax_write_iter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = generic_write_sync(iocb, ret); Found by Linux Verification Center (linuxtesting.org) with SVACE. [JK: Reflect also filemap_write_and_wait() return value]
Affected versions
Linux kernel versions
6.5
and later are affected. Fixed in
6.6.145,
6.12.97,
6.18.40,
7.1.5,
7.2-rc1
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74362?
CVE-2026-74362 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.5 onward and has been patched in 6.6.145, 6.12.97, 6.18.40 and others. CVE-2026-74362 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74362?
Yes. CVE-2026-74362 has been patched. Fixed versions include 6.6.145, 6.12.97, 6.18.40 and others. If you are running Linux kernel 6.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74362 actively exploited?
No. CVE-2026-74362 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.