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CVE-2026-80737

HIGHCVSS 7.8/10EPSS 0.21%

Last modified

CVE-2026-80737 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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 estimates a 0.21% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.21%

11.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= ead76f329f777c7301e0a5456a0a1c7a081570bd, < a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < 44bd0ecc3444882d08ecfbc2b2418d2f463d3186; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < c8c8e895f65fbf71ea6224e27cf8dab91b776e0d; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < 9f6989e477f03a4721d34bb4b09b17accd40283e; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < 5974cb66681eac367107b05924744d7e3b49d41c; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < fdfb46c387241b4eddd36d746793764413285913; >= ead76f329f777c7301e0a5456a0a1c7a081570bd, < 440915499231e9db1c361aa45bb702e8fd3b4a32
LinuxLinux2.6.39

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is 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.
How severe is CVE-2026-80737?
CVE-2026-80737 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80737?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST