Vulnerability 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.
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/440915499231e9db1c361aa45bb702e8fd3b4a32
- https://git.kernel.org/stable/c/44bd0ecc3444882d08ecfbc2b2418d2f463d3186
- https://git.kernel.org/stable/c/5974cb66681eac367107b05924744d7e3b49d41c
- https://git.kernel.org/stable/c/9f6989e477f03a4721d34bb4b09b17accd40283e
- https://git.kernel.org/stable/c/a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e
- https://git.kernel.org/stable/c/c8c8e895f65fbf71ea6224e27cf8dab91b776e0d
- https://git.kernel.org/stable/c/f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03
- https://git.kernel.org/stable/c/fdfb46c387241b4eddd36d746793764413285913
FAQ
What is CVE-2026-80737?
CVE-2026-80737 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 ca...
How severe is CVE-2026-80737?
CVE-2026-80737 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-80737?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.