CVE-2026-43296
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-667
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.252
- Linux Kernel < 5.15.202
- Linux Kernel < 6.1.165
- Linux Kernel < 6.6.128
- Linux Kernel < 6.12.75
- Linux Kernel < 6.18.16
- Linux Kernel < 6.19.6
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-43296.md and follow it. Check whether this project is affected by CVE-2026-43296. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/36cc5a5e0178d5fb79e04173b8aa623b0108819a
- https://git.kernel.org/stable/c/70e9a5760abfb6338d63994d4de6b0778ec795d6
- https://git.kernel.org/stable/c/8052d0587fb14b85539c3a14a226586c0c3d6b4c
- https://git.kernel.org/stable/c/9a3fd301329474f449e75f86d8a4f6b9c603fd6c
- https://git.kernel.org/stable/c/b7eba260a34e854e2487b8363c11976f082df00d
- https://git.kernel.org/stable/c/cec2ceb35ce7bc874c43812bb39200d6cf691b87
- https://git.kernel.org/stable/c/d0b3c8a80336029d9356f429151eb27922d80a3c
- https://git.kernel.org/stable/c/d9b549b6951ba178ec14339a031cae65f4e43fe1
References
- https://git.kernel.org/stable/c/36cc5a5e0178d5fb79e04173b8aa623b0108819a
- https://git.kernel.org/stable/c/70e9a5760abfb6338d63994d4de6b0778ec795d6
- https://git.kernel.org/stable/c/8052d0587fb14b85539c3a14a226586c0c3d6b4c
- https://git.kernel.org/stable/c/9a3fd301329474f449e75f86d8a4f6b9c603fd6c
- https://git.kernel.org/stable/c/b7eba260a34e854e2487b8363c11976f082df00d
- https://git.kernel.org/stable/c/cec2ceb35ce7bc874c43812bb39200d6cf691b87
- https://git.kernel.org/stable/c/d0b3c8a80336029d9356f429151eb27922d80a3c
- https://git.kernel.org/stable/c/d9b549b6951ba178ec14339a031cae65f4e43fe1