Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-27406

Severity CVSS v4.0:
Pending analysis
Type:
CWE-476 NULL Pointer Dereference
Publication date:
17/05/2024
Last modified:
18/09/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> lib/Kconfig.debug: TEST_IOV_ITER depends on MMU<br /> <br /> Trying to run the iov_iter unit test on a nommu system such as the qemu<br /> kc705-nommu emulation results in a crash.<br /> <br /> KTAP version 1<br /> # Subtest: iov_iter<br /> # module: kunit_iov_iter<br /> 1..9<br /> BUG: failure at mm/nommu.c:318/vmap()!<br /> Kernel panic - not syncing: BUG!<br /> <br /> The test calls vmap() directly, but vmap() is not supported on nommu<br /> systems, causing the crash. TEST_IOV_ITER therefore needs to depend on<br /> MMU.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.6 (including) 6.6.19 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc5:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools