Vulnerability CVE-2021-4148
Published: 2022-03-23

Description:
A vulnerability was found in the Linux kernel's block_invalidatepage in fs/buffer.c in the filesystem. A missing sanity check may allow a local attacker with user privilege to cause a denial of service (DOS) problem.

Type:

CWE-354

 (Improper Validation of Integrity Check Value)

CVSS2 => (AV:L/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.9/10
6.9/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Linux -> Linux kernel 
Fedoraproject -> Fedora 

 References:
https://lkml.org/lkml/2021/9/12/323
https://bugzilla.redhat.com/show_bug.cgi?id=2026487
https://lkml.org/lkml/2021/9/17/1037
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