drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix fence put before wait in amdgpu_amdkfd_submit_ib amdgpu_amdkfd_submit_ib() submits a GPU job and gets a fence from amdgpu_ib_schedule(). This fence is used to wait for job completion. Currently, the code drops the fence reference using dma_fence_put() before calling dma_fence_wait(). If dma_fence_put() releases the last reference, the fence may be freed before dma_fence_wait() is called. This can lead to a use-after-free. Fix this by waiting on the fence first and releasing the reference only after dma_fence_wait() completes. Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c:697 amdgpu_amdkfd_submit_ib() warn: passing freed memory 'f' (line 696) (cherry picked from commit 8b9e5259adc385b61a6590a13b82ae0ac2bd3482)
CVE-2026-31566
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-2026-31566
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": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "bc7760c107dc08ef3e231d72c492e67b0a86848b",
"versionType": "git"
},
{
"status": "affected",
"version": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "e23602eb0779760544314ed3905fa6a89a4e4070",
"versionType": "git"
},
{
"status": "affected",
"version": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "138e42be35ff2ce6572ae744de851ea286cf3c69",
"versionType": "git"
},
{
"status": "affected",
"version": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "39820864eacd886f1a6f817414fb8f9ea3e9a2b4",
"versionType": "git"
},
{
"status": "affected",
"version": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "42d248726a0837640452b71c5a202ca3d35239ec",
"versionType": "git"
},
{
"status": "affected",
"version": "9ae55f030dc523fc4dc6069557e4a887ea815453",
"lessThan": "7150850146ebfa4ca998f653f264b8df6f7f85be",
"versionType": "git"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.168",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.131",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.80",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.21",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "6.19.11",
"versionType": "semver",
"lessThanOrEqual": "6.19.*"
},
{
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-31566
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #39923 · Revision 1
- Added to Heist Feed
- Publisher date