{"id":"CVE-2026-80737","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: amba-pl011: synchronize DMA teardown\n\ndmaengine_terminate_all() does not wait for a running callback, so the TX\ncallback can still touch the TX buffer after it …","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: amba-pl011: synchronize DMA teardown\n\ndmaengine_terminate_all() does not wait for a running callback, so the TX\ncallback can still touch the TX buffer after it …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-03","updated":"2026-10-16","sourceUpdated":"2026-10-16T20:18:09.597","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80737","references":[{"url":"https://git.kernel.org/stable/c/440915499231e9db1c361aa45bb702e8fd3b4a32","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/44bd0ecc3444882d08ecfbc2b2418d2f463d3186","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5974cb66681eac367107b05924744d7e3b49d41c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9f6989e477f03a4721d34bb4b09b17accd40283e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c8c8e895f65fbf71ea6224e27cf8dab91b776e0d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fdfb46c387241b4eddd36d746793764413285913","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80737.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80737"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2527861"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80737"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80737"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80737.mbox"},{"url":"https://kernelcve.org/list/?q=CVE-2026-80737"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00129,"epssPercentile":0.02533,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:21:17.321670Z"},"scores":{"nvd":7.8,"vendor":4.7,"cna":7.8},"ingestedAt":"2026-10-16T19:46:24.300Z","slug":"CVE-2026-80737","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nserial: amba-pl011: synchronize DMA teardown\n\ndmaengine_terminate_all() does not wait for a running callback, so the TX\ncallback can still touch the TX buffer after it is freed. The RX poll\ntimer reads the RX buffers without the port lock.\n\nSwitch to dmaengine_terminate_sync() and delete the RX timer before\nfreeing the buffers.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-26 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80737.json)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":230441,"id":"CVE-2026-80737","ts":1793134644290,"field":"cvss","old":"4.7","new":"7.8"},{"seq":230440,"id":"CVE-2026-80737","ts":1793134644290,"field":"severity","old":"medium","new":"high"},{"seq":229438,"id":"CVE-2026-80737","ts":1793019776112,"field":"cvss","old":"7.8","new":"4.7"},{"seq":229437,"id":"CVE-2026-80737","ts":1793019776112,"field":"severity","old":"high","new":"medium"}]}