Vulnerability Details : CVE-2021-47525
In the Linux kernel, the following vulnerability has been resolved:
serial: liteuart: fix use-after-free and memleak on unbind
Deregister the port when unbinding the driver to prevent it from being
used after releasing the driver data and leaking memory allocated by
serial core.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-47525
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47525
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47525
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-06-10 |
CWE ids for CVE-2021-47525
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47525
-
https://git.kernel.org/stable/c/05f929b395dec8957b636ff14e66b277ed022ed9
serial: liteuart: fix use-after-free and memleak on unbind - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/602824cf9aa9db8830ffe5cfb2cd54365cada4fe
serial: liteuart: fix use-after-free and memleak on unbind - kernel/git/stable/linux.git - Linux kernel stable treePatch
Jump to