CVE-2026-31463

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iomap: fix invalid folio access when i_blkbits differs from I/O granularity<br /> <br /> Commit aa35dd5cbc06 ("iomap: fix invalid folio access after<br /> folio_end_read()") partially addressed invalid folio access for folios<br /> without an ifs attached, but it did not handle the case where<br /> 1 cur_folio = NULL;<br /> <br /> in iomap_read_folio_iter() will not invalidate ctx-&gt;cur_folio, and<br /> iomap_read_end() will still be called on the folio even though the IO<br /> helper owns it and will finish the read on it.<br /> <br /> Fix this by unconditionally invalidating ctx-&gt;cur_folio for the !ifs<br /> case.