drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram When migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set + MIGRATE_PFN_VALID unset) driver still allocates device pages. There is no dma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart() will return an uninitialized r. That can trigger out_free_vram_pages to drop all VRAM just set up. Initialize r and only call the last svm_migrate_copy_memory_gart if j > 0. Current code postponed the last page to the final copy. This patch flushes on the last page when reach to the end of current drm_buddy_block; avoids another svm_migrate_copy_memory_gart.
CVE-2026-89808
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-2026-89808
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": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11",
"lessThan": "6e1a6f3ddb87d7f89a775c55fb399680c02bdcc2",
"versionType": "git"
},
{
"status": "affected",
"version": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11",
"lessThan": "bd1adb2e5101db649121b59e601c92773a302a70",
"versionType": "git"
},
{
"status": "affected",
"version": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11",
"lessThan": "ae806a95b28fcecb913430cfa45a252e91a945d6",
"versionType": "git"
},
{
"status": "affected",
"version": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11",
"lessThan": "0a9a0e8a97da70a0336c9115178aaf1be29bcfb1",
"versionType": "git"
},
{
"status": "affected",
"version": "50ea50cf6f6d31d3235ad1853c5dbea766a3ed11",
"lessThan": "520e345ffe05aabef1db82beda4288afb1757ff2",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdkfd/kfd_migrate.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"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/gpu/drm/amd/amdkfd/kfd_migrate.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89808
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48549 · Revision 1
- Added to Heist Feed
- Publisher date