dmaengine: fsl-edma: tracing: no ptr dereference during log output
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.
CVE-2026-89994
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89994
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "11102d0c343ba06ddd303f2503c0ce46d70052f2",
"lessThan": "ef02cd3807f39ae1dbc924788d8fa6a85334c435",
"versionType": "git"
},
{
"status": "affected",
"version": "11102d0c343ba06ddd303f2503c0ce46d70052f2",
"lessThan": "d382aaf5fed38c6dd2e0cc710d97cb81d660ffa7",
"versionType": "git"
},
{
"status": "affected",
"version": "11102d0c343ba06ddd303f2503c0ce46d70052f2",
"lessThan": "2a3801ae5c344473e648006c5b03a9216ac54a6a",
"versionType": "git"
},
{
"status": "affected",
"version": "11102d0c343ba06ddd303f2503c0ce46d70052f2",
"lessThan": "2ea04dca8e627f722caa7a2037cfbae0257f3501",
"versionType": "git"
}
],
"programFiles": [
"drivers/dma/fsl-edma-trace.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.51",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.5",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/dma/fsl-edma-trace.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89994
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #36430 · Revision 1
- Added to Heist Feed
- Publisher date