CVE-2026-89994
- Source
- https://cve.org/CVERecord?id=CVE-2026-89994
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89994.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89994
- Downstream
- Published
- 2026-09-16T10:33:07Z
- Modified
- 2026-09-17T03:47:20Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- dmaengine: fsl-edma: tracing: no ptr dereference during log output
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: fsl-edma: tracing: no ptr dereference during log output
The fsl edma events store a pointer to a struct fsl_edma_engine in the ringbuffer and dereference it when a log entry is printed. At this time, the pointer may no longer be valid.
Event injection can be used to trigger a crash:
$ cd /sys/kernel/tracing $ echo 'value = 0' > events/fsl_edma/edma_writeb/inject $ cat trace
The log output needs only edma->membase. Add a membase field at the end of the event and use the new field for log output. Keep the existing fields for backward compatibility.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89994.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2a3801ae5c344473e648006c5b03a9216ac54a6a
- https://git.kernel.org/stable/c/2ea04dca8e627f722caa7a2037cfbae0257f3501
- https://git.kernel.org/stable/c/d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7
- https://git.kernel.org/stable/c/ef02cd3807f39ae1dbc924788d8fa6a85334c435
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89994.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89994
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced11102d0c343ba06ddd303f2503c0ce46d70052f2Fixedef02cd3807f39ae1dbc924788d8fa6a85334c435Fixedd382aaf5fed38c6dd2e0cc710d97cb81d660ffa7Fixed2a3801ae5c344473e648006c5b03a9216ac54a6aFixed2ea04dca8e627f722caa7a2037cfbae0257f3501