drm/amd/display: set new_stream to NULL after release
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.271, 5.15.222, 6.1.189, 6.12.101, 6.18.42, 6.6.148, 7.1.6
- CVEs
- CVE-2026-68236
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 02:02 UTC · Revision 1
Source evidence
drm/amd/display: set new_stream to NULL after release
core-osv · Original sourcePublished 10 Aug 2026, 12:01 UTC
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)
osv:CVE-2026-68236
Kernel
Fixed versions: 5.10.271, 5.15.222, 6.1.189, 6.6.148, 6.12.101, 6.18.42, 7.1.6
Complete source record
{
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"url": "https://osv.dev/vulnerability/CVE-2026-68236",
"method": "structured",
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"title": "drm/amd/display: set new_stream to NULL after release",
"summary": "In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: set new_stream to NULL after release In dm_update_crtc_state(), the skip_modeset path releases new_stream via dc_stream_release() but does not set the pointer to NULL. If a later error (e.g., color management failure) triggers the fail label, the error path calls dc_stream_release() again on the same dangling pointer, causing a double release and potential use-after-free. Fix this by setting new_stream to NULL after the initial release. (cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)",
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"modified": "2026-10-28T02:30:48.891190621Z",
"provider": "osv",
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"source_id": "core-osv",
"document_id": 517199,
"published_at": "2026-08-10T12:01:01.114+00:00"
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