122 lines
6.7 KiB
JSON
122 lines
6.7 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-40148",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-04-16T07:20:57.175Z",
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"datePublished": "2025-11-12T10:23:26.841Z",
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"dateUpdated": "2026-05-11T21:43:39.984Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T21:43:39.984Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/display/dc/core/dc_stream.c"
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],
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"versions": [
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{
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"version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8",
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"lessThan": "01e793e7d4d402c473f1a61ca5824f086693be65",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4465dd0e41e8223a46a41ce4fcdfc55fabd319d8",
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"lessThan": "bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/display/dc/core/dc_stream.c"
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],
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"versions": [
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{
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"version": "6.16",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.16",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.17.3",
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"lessThanOrEqual": "6.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "6.17.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "6.18"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/01e793e7d4d402c473f1a61ca5824f086693be65"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf4e4b97d0fdc66f04fc19d807e24dd8421b8f11"
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}
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],
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"title": "drm/amd/display: Add NULL pointer checks in dc_stream cursor attribute functions",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |