{"id":"CVE-2026-80737","title":"serial: amba-pl011: synchronize DMA teardown","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","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 44bd0ecc3444882d08ecfbc2b2418d2f463d3186","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < c8c8e895f65fbf71ea6224e27cf8dab91b776e0d","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 9f6989e477f03a4721d34bb4b09b17accd40283e","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 5974cb66681eac367107b05924744d7e3b49d41c","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < fdfb46c387241b4eddd36d746793764413285913","Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 440915499231e9db1c361aa45bb702e8fd3b4a32","Linux 2.6.39"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T19:21:17.321670Z"},"published":"2026-09-03","updated":"2026-10-16","sourceUpdated":"2026-10-16T19:26:36.178Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80737","references":[{"url":"https://git.kernel.org/stable/c/a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e"},{"url":"https://git.kernel.org/stable/c/44bd0ecc3444882d08ecfbc2b2418d2f463d3186"},{"url":"https://git.kernel.org/stable/c/f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03"},{"url":"https://git.kernel.org/stable/c/c8c8e895f65fbf71ea6224e27cf8dab91b776e0d"},{"url":"https://git.kernel.org/stable/c/9f6989e477f03a4721d34bb4b09b17accd40283e"},{"url":"https://git.kernel.org/stable/c/5974cb66681eac367107b05924744d7e3b49d41c"},{"url":"https://git.kernel.org/stable/c/fdfb46c387241b4eddd36d746793764413285913"},{"url":"https://git.kernel.org/stable/c/440915499231e9db1c361aa45bb702e8fd3b4a32"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.0228,"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## Affected\n\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < a38fae9d212e2d3ed5e9ec0ef773f8c0a27fb76e`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 44bd0ecc3444882d08ecfbc2b2418d2f463d3186`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < f70c9d4fba46463a5b1c7b3ee9ee3b40c90dac03`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < c8c8e895f65fbf71ea6224e27cf8dab91b776e0d`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 9f6989e477f03a4721d34bb4b09b17accd40283e`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 5974cb66681eac367107b05924744d7e3b49d41c`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < fdfb46c387241b4eddd36d746793764413285913`\n- `Linux >= ead76f329f777c7301e0a5456a0a1c7a081570bd < 440915499231e9db1c361aa45bb702e8fd3b4a32`\n- `Linux 2.6.39`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}