In the Linux kernel, the following vulnerability has been resolved:
enetc: Fix illegal access when reading affinity_hint
irq_set_affinity_hit() stores a reference to the cpumask_t
parameter in the irq descriptor, and that reference can be
accessed later from irq_affinity_hint_proc_show(). Since
the cpu_mask parameter passed to irq_set_affinity_hit() has
only temporary storage (it's on the stack memory), later
accesses to it are illegal. Thus reads from the corresponding
procfs affinity_hint file can result in paging request oops.
The issue is fixed by the get_cpu_mask() helper, which provides
a permanent storage for the cpumask_t parameter.
References
Configurations
No configuration.
History
03 Jul 2024, 01:37
Type | Values Removed | Values Added |
---|---|---|
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 8.1 |
Summary |
|
|
CWE | CWE-400 |
21 May 2024, 15:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2024-05-21 15:15
Updated : 2024-07-03 01:37
NVD link : CVE-2021-47368
Mitre link : CVE-2021-47368
CVE.ORG link : CVE-2021-47368
JSON object : View
Products Affected
No product.
CWE
CWE-400
Uncontrolled Resource Consumption