In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Fix possible dereference of uninitialized pointer
There is a pointer head_page in rb_meta_validate_events() which is not
initialized at the beginning of a function. This pointer can be dereferenced
if there is a failure during reader page validation. In this case the control
is passed to "invalid" label where the pointer is dereferenced in a loop.
To fix the issue initialize orig_head and head_page before calling
rb_validate_buffer.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
Configurations
Configuration 1 (hide)
|
History
08 May 2026, 20:00
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CWE | CWE-476 | |
| References | () https://git.kernel.org/stable/c/bc77986f3cb7476637052edf2d87137fa39f153d - Patch | |
| References | () https://git.kernel.org/stable/c/d9942396845fef2369478c157b26738fe07142f6 - Patch | |
| References | () https://git.kernel.org/stable/c/f1547779402c4cd67755c33616b7203baa88420b - Patch |
06 May 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-06 12:16
Updated : 2026-05-08 20:00
NVD link : CVE-2026-43272
Mitre link : CVE-2026-43272
CVE.ORG link : CVE-2026-43272
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference