CVE-2023-54285
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
30/12/2025
Last modified:
30/12/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
iomap: Fix possible overflow condition in iomap_write_delalloc_scan<br />
<br />
folio_next_index() returns an unsigned long value which left shifted<br />
by PAGE_SHIFT could possibly cause an overflow on 32-bit system. Instead<br />
use folio_pos(folio) + folio_size(folio), which does this correctly.