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CVE-2022-49956

nvd nist
Published: Jun 18, 2025Modified: Jun 17, 2026

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.

Affected (10)

Products: Linux: Linux Kernel
Linux
1 product
Linux Kernel
Configuration A
10 vulnerable
Vulnerable SoftwareAffected Versions
Linux
Linux Kernel
From 2.6.37 to 4.9.328
Linux Kernel
From 4.10 to 4.14.293
Linux Kernel
From 4.15 to 4.19.258
Linux Kernel
From 4.20 to 5.4.213
Linux Kernel
From 5.11 to 5.15.66
Linux Kernel
From 5.16 to 5.19.8
Linux Kernel
From 5.5 to 5.10.142
Linux Kernel
Version 6.0 rc1
Linux Kernel
Version 6.0 rc2
Linux Kernel
Version 6.0 rc3

Related CWEs

CWE-416
Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (8)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

Timeline

No history available yet.