{"id":"CVE-2026-89994","published":"2026-09-16T11:17:10.593","lastModified":"2026-09-16T15:18:23.037","description":"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 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.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a","tags":[]},{"url":"https://git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501","tags":[]},{"url":"https://git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7","tags":[]},{"url":"https://git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}