In the Linux kernel, the following vulnerability has been resolved:
apparmor: avoid per-cpu hold underflow in aa_get_buffer
When aa_get_buffer() pulls from the per-cpu list it unconditionally
decrements cache->hold. If hold reaches 0 while count is still non-zero,
the unsigned decrement wraps to UINT_MAX. This keeps hold non-zero for a
very long time, so aa_put_buffer() never returns buffers to the global
list, which can starve other CPUs and force repeated kmalloc(aa_g_path_max)
allocations.
Guard the decrement so hold never underflows.
References
Configurations
Configuration 1 (hide)
|
History
25 Jun 2026, 21:12
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| CWE | CWE-191 | |
| References | () https://git.kernel.org/stable/c/202824a1f89a9786c20a3d646a7c88d223abb1b2 - Patch | |
| References | () https://git.kernel.org/stable/c/4bcddd0f6b2e52b4c7b520e4d36a115caf5b7169 - Patch | |
| References | () https://git.kernel.org/stable/c/640cf2f09575c9dc344b3f7be2498d31e3923ead - Patch | |
| References | () https://git.kernel.org/stable/c/80c334acc6d0bee8605a358a33e69b4aea1ffb92 - Patch |
27 May 2026, 14:17
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-27 14:17
Updated : 2026-06-25 21:12
NVD link : CVE-2026-45884
Mitre link : CVE-2026-45884
CVE.ORG link : CVE-2026-45884
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-191
Integer Underflow (Wrap or Wraparound)