CVE-2026-80737

CVE-2026-80737

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: synchronize DMA teardown dmaengine_terminate_all() does not wait for a running callback, so the TX callback can still touch the TX buffer after it is freed. The RX poll timer reads the RX buffers without the port lock. Switch to dmaengine_terminate_sync() and delete the RX timer before freeing the buffers.

EPSS: 0.002 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

References

Frequently asked questions

What is CVE-2026-80737?
CVE-2026-80737 is a high-severity vulnerability. CVSS score: 7.8/10. Published 2026-09-03.
How severe is CVE-2026-80737?
High severity. CVSS v3 base score is 7.8 out of 10.