CVE-2026-74362

In the Linux kernel, the following vulnerability has been resolved:

ext2: fix ignored return value of genericwritesync()

Fix ext2diowriteiter() to propagate the error returned by genericwritesync() instead of silently discarding it, which could cause write(2) to return success to userspace on OSYNC/O_DSYNC files even when the sync failed.

The correct pattern, already used in ext2daxwriteiter() in the same file and in ext4, xfs, f2fs among others, is: if (ret > 0) ret = genericwrite_sync(iocb, ret);

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[JK: Reflect also filemapwriteand_wait() return value]