dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Initialize IRQ data before requesting IRQs dw_edma_irq_request() passes struct dw_edma_irq to request_irq() before dw_edma_channel_setup() fills the back pointer. A shared interrupt can therefore enter the handler with dw_irq->dw still NULL, leading to a NULL pointer dereference. Set the back pointer before installing each handler.
CVE-2026-89993
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-2026-89993
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": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "b86280b12ccf33b68b309b7cb0e4476894dfe77c",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "07e50cef557def076418c67051a336e4c6bd50e1",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "d232bc6cf4562132ef50644484dfd4b23a593295",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "fac202d73e7a649b7d4010325c6c6dcd9334fe65",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "d91fb6c0d10dad32929dc5c6850f89df34e1bfcd",
"versionType": "git"
},
{
"status": "affected",
"version": "e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf",
"lessThan": "647217abea849d3d45f8cb0b8ee5b78d50f26985",
"versionType": "git"
}
],
"programFiles": [
"drivers/dma/dw-edma/dw-edma-core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"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/dw-edma/dw-edma-core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89993
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36428 · Revision 1
- Added to Heist Feed
- Publisher date