{"id":"CVE-2026-89994","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: fsl-edma: tracing: no ptr dereference during log output\n\nThe fsl edma events store a pointer to a struct fsl_edma_engine in the\nringbuffer and dereference it…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: fsl-edma: tracing: no ptr dereference during log output\n\nThe fsl edma events store a pointer to a struct fsl_edma_engine in the\nringbuffer and dereference 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","vendor":"Linux","product":"Linux","affected":["Linux >= 11102d0c343ba06ddd303f2503c0ce46d70052f2 < ef02cd3807f39ae1dbc924788d8fa6a85334c435","Linux >= 11102d0c343ba06ddd303f2503c0ce46d70052f2 < d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7","Linux >= 11102d0c343ba06ddd303f2503c0ce46d70052f2 < 2a3801ae5c344473e648006c5b03a9216ac54a6a","Linux >= 11102d0c343ba06ddd303f2503c0ce46d70052f2 < 2ea04dca8e627f722caa7a2037cfbae0257f3501","Linux 6.10"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:18:23.037","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89994","references":[{"url":"https://git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.948Z","epss":0.00184,"epssPercentile":0.08248,"slug":"CVE-2026-89994","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: fsl-edma: tracing: no ptr dereference during log output\n\nThe fsl edma events store a pointer to a struct fsl_edma_engine in the\nringbuffer and dereference it when a log entry is printed. At this time,\nthe pointer may no longer be valid.\n\nEvent injection can be used to trigger a crash:\n\n$ cd /sys/kernel/tracing\n$ echo 'value = 0' > events/fsl_edma/edma_writeb/inject\n$ cat trace\n\nThe log output needs only edma->membase. Add a membase field at the end\nof the event and use the new field for log output. Keep the existing\nfields for backward compatibility.\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":[{"seq":205039,"id":"CVE-2026-89994","ts":1789570704896,"field":"cvss","old":null,"new":"7.8"},{"seq":205038,"id":"CVE-2026-89994","ts":1789570704896,"field":"severity","old":"none","new":"high"}]}