CVE-2026-46263

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When eng_id is 5 (ENGINE_ID_DIGF) or negative, this can\naccess memory past the end of the array.\n\nAdd a bounds check using ARRAY_SIZE() before using eng_id as an index.\nThe unsigned cast also rejects negative values.\n\nThis avoids out-of-bounds access.\n\nFixes the below smatch error:\ndcn*_resource.c: stream_encoder_create() may index\nstream_enc_regs[eng_id] out of bounds (size 5).\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn351/dcn351_resource.c\n 1246 static struct stream_encoder *dcn35_stream_encoder_create(\n 1247 enum engine_id eng_id,\n 1248 struct dc_context *ctx)\n 1249 {\n\n ...\n\n 1255\n 1256 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */\n 1257 if (eng_id <= ENGINE_ID_DIGF) {\n\nENGINE_ID_DIGF is 5. should <= be <?\n\nUnrelated but, ugh, why is Smatch saying that \"eng_id\" can be negative?\nend_id is type signed long, but there are checks in the caller which prevent it from being negative.\n\n 1258 vpg_inst = eng_id;\n 1259 afmt_inst = eng_id;\n 1260 } else\n 1261 return NULL;\n 1262\n\n ...\n\n 1281\n 1282 dcn35_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,\n 1283 eng_id, vpg, afmt,\n--> 1284 &stream_enc_regs[eng_id],\n ^^^^^^^^^^^^^^^^^^^^^^^ This stream_enc_regs[] array has 5 elements so we are one element beyond the end of the array.\n\n ...\n\n 1287 return &enc1->base;\n 1288 }\n\nv2: use explicit bounds check as suggested by Roman/Dan; avoid unsigned int cast\n\nv3: The compiler already knows how to compare the two values, so the\n cast (int) is not needed. (Roman)"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The flaw is in AMDGPU display core initialization (dc_create/resource_construct during GPU probe), reachable only from the local kernel context, not from the network or physical buses.\nAC:L - When an out-of-range eng_id is passed, the out-of-bounds index is deterministic with no race; the off-by-one check reliably allows ENGINE_ID_DIGF (5) past validation.\nPR:L - Exploitation requires local access on a system with a vulnerable AMD DCN3.x GPU driver loaded; typical desktop/cloud-GPU tenants have local DRM access without real root, though module reload generally needs elevated privileges.\nUI:N - No victim interaction is required; the bug fires during driver/display-core initialization, not from opening a file or approving a prompt.\nS:U - Impact stays within kernel/GPU driver context (wrong MMIO register maps, memory corruption); it does not cross a VM/hypervisor or IOMMU security boundary by itself.\nC:H - Out-of-bounds indexing of stream_enc_regs[] reads adjacent kernel memory into encoder register descriptors, which is an unbounded kernel memory disclosure primitive per kernel CVSS guidance.\nI:H - The corrupted register block pointer is used for subsequent GPU MMIO writes through stream-encoder helpers, enabling misdirected hardware register modification and potential control of display hardware state.\nA:H - Invalid register mappings and out-of-bounds kernel reads can cause kernel oops/panic or GPU hang when display paths are exercised, matching kernel guidance for crash-class availability impact."}]}], "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/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "versions": [{"version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "29f3824b08a98d41ecbbfd33580630d7607f962e", "status": "affected", "versionType": "git"}, {"version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "263e28add4f4472cfa95150d218955d1945aa413", "status": "affected", "versionType": "git"}, {"version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "ca3808d560ad946ab6d089fd1f5bee04b952ead4", "status": "affected", "versionType": "git"}, {"version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "abde491143e4e12eecc41337910aace4e8d59603", "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/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.14", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.4", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.9", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.19.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/29f3824b08a98d41ecbbfd33580630d7607f962e"}, {"url": "https://git.kernel.org/stable/c/263e28add4f4472cfa95150d218955d1945aa413"}, {"url": "https://git.kernel.org/stable/c/ca3808d560ad946ab6d089fd1f5bee04b952ead4"}, {"url": "https://git.kernel.org/stable/c/abde491143e4e12eecc41337910aace4e8d59603"}], "title": "drm/amd/display: Fix out-of-bounds stream encoder index v3", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46263", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-10-16T15:21:27.958639Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-19T19:36:56.301Z"}}]}}

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the off-by-one check reliably allows ENGINE_ID_DIGF (5) past validation.\nPR:L - Exploitation requires local access on a system with a vulnerable AMD DCN3.x GPU driver loaded; typical desktop/cloud-GPU tenants have local DRM access without real root, though module reload generally needs elevated privileges.\nUI:N - No victim interaction is required; the bug fires during driver/display-core initialization, not from opening a file or approving a prompt.\nS:U - Impact stays within kernel/GPU driver context (wrong MMIO register maps, memory corruption); it does not cross a VM/hypervisor or IOMMU security boundary by itself.\nC:H - Out-of-bounds indexing of stream_enc_regs[] reads adjacent kernel memory into encoder register descriptors, which is an unbounded kernel memory disclosure primitive per kernel CVSS guidance.\nI:H - The corrupted register block pointer is used for subsequent GPU MMIO writes through stream-encoder helpers, enabling misdirected hardware register modification and potential control of display hardware state.\nA:H - Invalid register mappings and out-of-bounds kernel reads can cause kernel oops/panic or GPU hang when display paths are exercised, matching kernel guidance for crash-class availability impact."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "29f3824b08a98d41ecbbfd33580630d7607f962e", "versionType": "git"}, {"status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "263e28add4f4472cfa95150d218955d1945aa413", "versionType": "git"}, {"status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "ca3808d560ad946ab6d089fd1f5bee04b952ead4", "versionType": "git"}, {"status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "lessThan": "abde491143e4e12eecc41337910aace4e8d59603", "versionType": "git"}], "programFiles": ["drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"status": "unaffected", "version": "0", "lessThan": "6.9", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.75", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.14", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.4", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/29f3824b08a98d41ecbbfd33580630d7607f962e"}, {"url": "https://git.kernel.org/stable/c/263e28add4f4472cfa95150d218955d1945aa413"}, {"url": "https://git.kernel.org/stable/c/ca3808d560ad946ab6d089fd1f5bee04b952ead4"}, {"url": "https://git.kernel.org/stable/c/abde491143e4e12eecc41337910aace4e8d59603"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bounds stream encoder index v3\n\neng_id can be negative and that stream_enc_regs[]\ncan be indexed out of bounds.\n\neng_id is used directly as an index into stream_enc_regs[], which has\nonly 5 entries. When eng_id is 5 (ENGINE_ID_DIGF) or negative, this can\naccess memory past the end of the array.\n\nAdd a bounds check using ARRAY_SIZE() before using eng_id as an index.\nThe unsigned cast also rejects negative values.\n\nThis avoids out-of-bounds access.\n\nFixes the below smatch error:\ndcn*_resource.c: stream_encoder_create() may index\nstream_enc_regs[eng_id] out of bounds (size 5).\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn351/dcn351_resource.c\n 1246 static struct stream_encoder *dcn35_stream_encoder_create(\n 1247 enum engine_id eng_id,\n 1248 struct dc_context *ctx)\n 1249 {\n\n ...\n\n 1255\n 1256 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */\n 1257 if (eng_id <= ENGINE_ID_DIGF) {\n\nENGINE_ID_DIGF is 5. should <= be <?\n\nUnrelated but, ugh, why is Smatch saying that \"eng_id\" can be negative?\nend_id is type signed long, but there are checks in the caller which prevent it from being negative.\n\n 1258 vpg_inst = eng_id;\n 1259 afmt_inst = eng_id;\n 1260 } else\n 1261 return NULL;\n 1262\n\n ...\n\n 1281\n 1282 dcn35_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,\n 1283 eng_id, vpg, afmt,\n--> 1284 &stream_enc_regs[eng_id],\n ^^^^^^^^^^^^^^^^^^^^^^^ This stream_enc_regs[] array has 5 elements so we are one element beyond the end of the array.\n\n ...\n\n 1287 return &enc1->base;\n 1288 }\n\nv2: use explicit bounds check as suggested by Roman/Dan; avoid unsigned int cast\n\nv3: The compiler already knows how to compare the two values, so the\n cast (int) is not needed. 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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "29f3824b08a98d41ecbbfd33580630d7607f962e", "status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "versionType": "git"}, {"lessThan": "263e28add4f4472cfa95150d218955d1945aa413", "status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "versionType": "git"}, {"lessThan": "ca3808d560ad946ab6d089fd1f5bee04b952ead4", "status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "versionType": "git"}, {"lessThan": "abde491143e4e12eecc41337910aace4e8d59603", "status": "affected", "version": "2728e9c7c84235d2d7bc1403174d071ffc82d6d2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn316/dcn316_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn321/dcn321_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c", "drivers/gpu/drm/amd/display/dc/resource/dcn351/dcn351_resource.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.14", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F8A1C6F6-2847-4C53-ABFC-8F07D96900D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.9", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BF463CB7-1F58-4607-B847-77ED23E4B9B7", "versionEndExcluding": "6.18.14", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "672A3E79-EC03-479D-8503-361DFBDC8092", "versionEndExcluding": "6.19.4", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bounds stream encoder index v3\n\neng_id can be negative and that stream_enc_regs[]\ncan be indexed out of bounds.\n\neng_id is used directly as an index into stream_enc_regs[], which has\nonly 5 entries. When eng_id is 5 (ENGINE_ID_DIGF) or negative, this can\naccess memory past the end of the array.\n\nAdd a bounds check using ARRAY_SIZE() before using eng_id as an index.\nThe unsigned cast also rejects negative values.\n\nThis avoids out-of-bounds access.\n\nFixes the below smatch error:\ndcn*_resource.c: stream_encoder_create() may index\nstream_enc_regs[eng_id] out of bounds (size 5).\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn351/dcn351_resource.c\n 1246 static struct stream_encoder *dcn35_stream_encoder_create(\n 1247 enum engine_id eng_id,\n 1248 struct dc_context *ctx)\n 1249 {\n\n ...\n\n 1255\n 1256 /* Mapping of VPG, AFMT, DME register blocks to DIO block instance */\n 1257 if (eng_id <= ENGINE_ID_DIGF) {\n\nENGINE_ID_DIGF is 5. should <= be <?\n\nUnrelated but, ugh, why is Smatch saying that \"eng_id\" can be negative?\nend_id is type signed long, but there are checks in the caller which prevent it from being negative.\n\n 1258 vpg_inst = eng_id;\n 1259 afmt_inst = eng_id;\n 1260 } else\n 1261 return NULL;\n 1262\n\n ...\n\n 1281\n 1282 dcn35_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,\n 1283 eng_id, vpg, afmt,\n--> 1284 &stream_enc_regs[eng_id],\n ^^^^^^^^^^^^^^^^^^^^^^^ This stream_enc_regs[] array has 5 elements so we are one element beyond the end of the array.\n\n ...\n\n 1287 return &enc1->base;\n 1288 }\n\nv2: use explicit bounds check as suggested by Roman/Dan; avoid unsigned int cast\n\nv3: The compiler already knows how to compare the two values, so the\n cast (int) is not needed. (Roman)"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/amd/display: Correcci\u00f3n de \u00edndice de codificador de flujo fuera de l\u00edmites v3\n\neng_id puede ser negativo y que stream_enc_regs[]\npuede ser indexado fuera de l\u00edmites.\n\neng_id se usa directamente como un \u00edndice en stream_enc_regs[], que tiene\nsolo 5 entradas. Cuando eng_id es 5 (ENGINE_ID_DIGF) o negativo, esto puede\nacceder a memoria m\u00e1s all\u00e1 del final del array.\n\nA\u00f1adir una comprobaci\u00f3n de l\u00edmites usando ARRAY_SIZE() antes de usar eng_id como un \u00edndice.\nLa conversi\u00f3n a tipo sin signo tambi\u00e9n rechaza valores negativos.\n\nEsto evita el acceso fuera de l\u00edmites.\n\nCorrige el siguiente error de smatch:\ndcn_resource.c: stream_encoder_create() puede indexar\nstream_enc_regs[eng_id] fuera de l\u00edmites (tama\u00f1o 5).\n\ndrivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn351/dcn351_resource.c\n 1246 static struct stream_encoder dcn35_stream_encoder_create(\n 1247 enum engine_id eng_id,\n 1248 struct dc_context ctx)\n 1249 {\n\n ...\n\n 1255\n 1256 /* Mapeo de bloques de registro VPG, AFMT, DME a instancia de bloque DIO */\n 1257 if (eng_id <= ENGINE_ID_DIGF) {\n\nENGINE_ID_DIGF es 5. \u00bfdeber\u00eda <= ser <?\n\nSin relaci\u00f3n, pero, ugh, \u00bfpor qu\u00e9 Smatch dice que 'eng_id' puede ser negativo?\nend_id es de tipo signed long, pero hay comprobaciones en la funci\u00f3n llamadora que impiden que sea negativo.\n\n 1258 vpg_inst = eng_id;\n 1259 afmt_inst = eng_id;\n 1260 } else\n 1261 return NULL;\n 1262\n\n ...\n\n 1281\n 1282 dcn35_dio_stream_encoder_construct(enc1, ctx, ctx->dc_bios,\n 1283 eng_id, vpg, afmt,\n--> 1284 &stream_enc_regs[eng_id],\n ^^^^^^^^^^^^^^^^^^^^^^^ Este array stream_enc_regs[] tiene 5 elementos, por lo que estamos un elemento m\u00e1s all\u00e1 del final del array.\n\n ...\n\n 1287 return &enc1->base;\n 1288 }\n\nv2: usar comprobaci\u00f3n de l\u00edmites expl\u00edcita como sugirieron Roman/Dan; evitar conversi\u00f3n a unsigned int\n\nv3: El compilador ya sabe c\u00f3mo comparar los dos valores, por lo que la\n conversi\u00f3n (int) no es necesaria. (Roman)"}], "id": "CVE-2026-46263", "lastModified": "2026-10-19T20:18:40.083", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46263", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:21:27.958639Z", "version": "2.0.3"}}]}, "published": "2026-06-03T18:16:27.743", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/263e28add4f4472cfa95150d218955d1945aa413"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/29f3824b08a98d41ecbbfd33580630d7607f962e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/abde491143e4e12eecc41337910aace4e8d59603"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ca3808d560ad946ab6d089fd1f5bee04b952ead4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: drm/amd/display: Fix out-of-bounds stream encoder index v3", "id": "2484484", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2484484"}, "csaw": false, "cwe": "CWE-1285", "details": ["A flaw was found in the Linux kernel's `drm/amd/display` component. This vulnerability arises from an out-of-bounds array access when an invalid `eng_id` value is used to index the `stream_enc_regs` array. A local attacker or a privileged process could exploit this memory corruption to potentially execute arbitrary code or cause a denial of service on the affected system."], "name": "CVE-2026-46263", "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": "2026-06-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46263\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46263\nhttps://lore.kernel.org/linux-cve-announce/2026060337-CVE-2026-46263-952d@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2728e9c7c84235d2d7bc1403174d071ffc82d6d2,29f3824b08a98d41ecbbfd33580630d7607f962e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2728e9c7c84235d2d7bc1403174d071ffc82d6d2,263e28add4f4472cfa95150d218955d1945aa413)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2728e9c7c84235d2d7bc1403174d071ffc82d6d2,ca3808d560ad946ab6d089fd1f5bee04b952ead4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2728e9c7c84235d2d7bc1403174d071ffc82d6d2,abde491143e4e12eecc41337910aace4e8d59603)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.14,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-03T19:30:35.942917+00:00", "updated": "2026-06-09T23:45:15.691825+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}