{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-40148", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.175Z", "datePublished": "2025-11-12T10:23:26.841Z", "dateUpdated": "2025-11-12T10:23:26.841Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-11-12T10:23:26.841Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions\n\nThe function dc_stream_set_cursor_attributes() currently dereferences\nthe `stream` pointer and nested members `stream->ctx->dc->current_state`\nwithout checking for NULL.\n\nAll callers of these functions, such as in\n`dcn30_apply_idle_power_optimizations()` and\n`amdgpu_dm_plane_handle_cursor_update()`, already perform NULL checks\nbefore calling these functions.\n\nFixes below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:336 dc_stream_program_cursor_attributes()\nerror: we previously assumed 'stream' could be null (see line 334)\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n 327 bool dc_stream_program_cursor_attributes(\n 328 struct dc_stream_state *stream,\n 329 const struct dc_cursor_attributes *attributes)\n 330 {\n 331 struct dc *dc;\n 332 bool reset_idle_optimizations = false;\n 333\n 334 dc = stream ? stream->ctx->dc : NULL;\n ^^^^^^\nThe old code assumed stream could be NULL.\n\n 335\n--> 336 if (dc_stream_set_cursor_attributes(stream, attributes)) {\n ^^^^^^\nThe refactor added an unchecked dereference.\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n 313 bool dc_stream_set_cursor_attributes(\n 314 struct dc_stream_state *stream,\n 315 const struct dc_cursor_attributes *attributes)\n 316 {\n 317 bool result = false;\n 318\n 319 if (dc_stream_check_cursor_attributes(stream, stream->ctx->dc->current_state, attributes)) {\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Here.\nThis function used to check for if stream as NULL and return false at\nthe start. Probably we should add that back."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/display/dc/core/dc_stream.c"], "versions": [{"version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8", "lessThan": "01e793e7d4d402c473f1a61ca5824f086693be65", "status": "affected", "versionType": "git"}, {"version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8", "lessThan": "bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/amd/display/dc/core/dc_stream.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.17.3", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.17.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/01e793e7d4d402c473f1a61ca5824f086693be65"}, {"url": "https://git.kernel.org/stable/c/bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11"}], "title": "drm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions\n\nThe function dc_stream_set_cursor_attributes() currently dereferences\nthe `stream` pointer and nested members `stream->ctx->dc->current_state`\nwithout checking for NULL.\n\nAll callers of these functions, such as in\n`dcn30_apply_idle_power_optimizations()` and\n`amdgpu_dm_plane_handle_cursor_update()`, already perform NULL checks\nbefore calling these functions.\n\nFixes below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:336 dc_stream_program_cursor_attributes()\nerror: we previously assumed 'stream' could be null (see line 334)\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n 327 bool dc_stream_program_cursor_attributes(\n 328 struct dc_stream_state *stream,\n 329 const struct dc_cursor_attributes *attributes)\n 330 {\n 331 struct dc *dc;\n 332 bool reset_idle_optimizations = false;\n 333\n 334 dc = stream ? stream->ctx->dc : NULL;\n ^^^^^^\nThe old code assumed stream could be NULL.\n\n 335\n--> 336 if (dc_stream_set_cursor_attributes(stream, attributes)) {\n ^^^^^^\nThe refactor added an unchecked dereference.\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n 313 bool dc_stream_set_cursor_attributes(\n 314 struct dc_stream_state *stream,\n 315 const struct dc_cursor_attributes *attributes)\n 316 {\n 317 bool result = false;\n 318\n 319 if (dc_stream_check_cursor_attributes(stream, stream->ctx->dc->current_state, attributes)) {\n ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Here.\nThis function used to check for if stream as NULL and return false at\nthe start. Probably we should add that back."}], "id": "CVE-2025-40148", "lastModified": "2025-11-12T16:19:12.850", "metrics": {}, "published": "2025-11-12T11:15:44.700", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/01e793e7d4d402c473f1a61ca5824f086693be65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: drm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions", "id": "2414483", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2414483"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions\nThe function dc_stream_set_cursor_attributes() currently dereferences\nthe `stream` pointer and nested members `stream->ctx->dc->current_state`\nwithout checking for NULL.\nAll callers of these functions, such as in\n`dcn30_apply_idle_power_optimizations()` and\n`amdgpu_dm_plane_handle_cursor_update()`, already perform NULL checks\nbefore calling these functions.\nFixes below:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c:336 dc_stream_program_cursor_attributes()\nerror: we previously assumed 'stream' could be null (see line 334)\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n327 bool dc_stream_program_cursor_attributes(\n328 struct dc_stream_state *stream,\n329 const struct dc_cursor_attributes *attributes)\n330 {\n331 struct dc *dc;\n332 bool reset_idle_optimizations = false;\n333\n334 dc = stream ? stream->ctx->dc : NULL;\n^^^^^^\nThe old code assumed stream could be NULL.\n335\n--> 336 if (dc_stream_set_cursor_attributes(stream, attributes)) {\n^^^^^^\nThe refactor added an unchecked dereference.\ndrivers/gpu/drm/amd/amdgpu/../display/dc/core/dc_stream.c\n313 bool dc_stream_set_cursor_attributes(\n314 struct dc_stream_state *stream,\n315 const struct dc_cursor_attributes *attributes)\n316 {\n317 bool result = false;\n318\n319 if (dc_stream_check_cursor_attributes(stream, stream->ctx->dc->current_state, attributes)) {\n^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Here.\nThis function used to check for if stream as NULL and return false at\nthe start. Probably we should add that back."], "name": "CVE-2025-40148", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-11-12T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-40148\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-40148\nhttps://lore.kernel.org/linux-cve-announce/2025111257-CVE-2025-40148-eef5@gregkh/T"], "threat_severity": "Moderate"}