In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: Workaround SQM/PSE stalls by disabling sticky
NIX SQ manager sticky mode is known to cause stalls when multiple SQs
share an SMQ and transmit concurrently. Additionally, PSE may deadlock
on transitions between sticky and non-sticky transmissions. There is
also a credit drop issue observed when certain condition clocks are
gated.
work around these hardware errata by:
- Disabling SQM sticky operation:
- Clear TM6 (bit 15)
- Clear TM11 (bit 14)
- Disabling sticky → non-sticky transition path that can deadlock PSE:
- Clear TM5 (bit 23)
- Preventing credit drops by keeping the control-flow clock enabled:
- Set TM9 (bit 21)
These changes are applied via NIX_AF_SQM_DBG_CTL_STATUS. With this
configuration the SQM/PSE maintain forward progress under load without
credit loss, at the cost of disabling sticky optimizations.
References
Configurations
Configuration 1 (hide)
|
History
15 May 2026, 15:03
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-667 | |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/36cc5a5e0178d5fb79e04173b8aa623b0108819a - Patch | |
| References | () https://git.kernel.org/stable/c/70e9a5760abfb6338d63994d4de6b0778ec795d6 - Patch | |
| References | () https://git.kernel.org/stable/c/8052d0587fb14b85539c3a14a226586c0c3d6b4c - Patch | |
| References | () https://git.kernel.org/stable/c/9a3fd301329474f449e75f86d8a4f6b9c603fd6c - Patch | |
| References | () https://git.kernel.org/stable/c/b7eba260a34e854e2487b8363c11976f082df00d - Patch | |
| References | () https://git.kernel.org/stable/c/cec2ceb35ce7bc874c43812bb39200d6cf691b87 - Patch | |
| References | () https://git.kernel.org/stable/c/d0b3c8a80336029d9356f429151eb27922d80a3c - Patch | |
| References | () https://git.kernel.org/stable/c/d9b549b6951ba178ec14339a031cae65f4e43fe1 - Patch |
11 May 2026, 08:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
08 May 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-08 14:16
Updated : 2026-05-15 15:03
NVD link : CVE-2026-43296
Mitre link : CVE-2026-43296
CVE.ORG link : CVE-2026-43296
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-667
Improper Locking