CVE-2026-43440
Description
In the Linux kernel, the following vulnerability has been resolved: net/mana: Null service_wq on setup error to prevent double destroy In mana_gd_setup() error path, set gc->service_wq to NULL after destroy_workqueue() to match the cleanup in mana_gd_cleanup(). This prevents a use-after-free if the workqueue pointer is checked after a failed setup.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.19.10-1 |
| debian | sid | fixed | 6.19.10-1 |
| debian | trixie | fixed | 0 |
| linux-kernel | affected | 6.18.19 | |
| linux-kernel | 7.0 | affected | |
References
- https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916
- https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13
- https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666
- https://www.suse.com/security/cve/CVE-2026-43440.html
- https://security-tracker.debian.org/tracker/CVE-2026-43440
CWEs
CWE-416
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.