CVE-2025-21872 — Linux vulnerability
40 documents7 sources
Severity
5.5MEDIUMNVD
OSV4.7
EPSS
0.1%
top 76.27%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 27
Latest updateOct 15
Description
In the Linux kernel, the following vulnerability has been resolved:
efi: Don't map the entire mokvar table to determine its size
Currently, when validating the mokvar table, we (re)map the entire table
on each iteration of the loop, adding space as we discover new entries.
If the table grows over a certain size, this fails due to limitations of
early_memmap(), and we get a failure and traceback:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 0 at mm/early_ioremap.c:139 __early_iore…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages8 packages
▶CVEListV5linux/linux58c909022a5a56cd1d9e89c8c5461fd1f6a27bb5 — 46c0454ffb78ce9d3355a3cccac86383ea8ddd55+5