CVE-2026-43493
critical
CVSS v3
9.8
CVSS v2
—
VIR risk
9.8
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - Fix handling of MAY_BACKLOG requests MAY_BACKLOG requests can return EBUSY. Handle them by checking for that value and filtering out EINPROGRESS notifications.
Predictions
Exploit likelihood
97%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-43493
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-43493.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | fixed | 7.0.4-1 |
| debian | sid | fixed | 7.0.4-1 |
| debian | trixie | fixed | 6.12.86-1 |
References
- https://git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a
- https://git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67
- https://git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110
- https://git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2
- https://git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276
- https://www.suse.com/security/cve/CVE-2026-43493.html
- https://security-tracker.debian.org/tracker/CVE-2026-43493
Verify integrity in audit chain (admin only). AS-IS.