CVE-2025-71138

// PoC concept for CVE-2025-71138 // This demonstrates triggering the NULL pointer dereference in dpu_encoder_phys_wb_setup_ctl // Note: Actual exploitation requires specific hardware and display configuration #include <stdio.h> #include <stdlib.h> #include <fcntl.h> /* * Trigger conditions for CVE-2025-71138: * 1. Target system with MSM DRM driver * 2. Configure display pipeline for writeback mode * 3. Create conditions where pingpong interface is NULL * 4. Trigger dpu_encoder_phys_wb_setup_ctl() with NULL pingpong * * This is a kernel vulnerability - exploitation requires: * - Local access to the system * - Ability to interact with DRM subsystem * - Specific display hardware configuration */ int main() { printf("CVE-2025-71138 PoC Concept\n"); printf("Target: Linux kernel drm/msm/dpu driver\n"); printf("Vulnerability: Missing NULL pointer check in dpu_encoder_phys_wb_setup_ctl\n"); printf("\nNote: This is a conceptual demonstration.\n"); printf("Actual exploitation requires:\n"); printf(" - Kernel module with vulnerable dpu driver\n"); printf(" - Specific display hardware (typically Qualcomm SoC)\n"); printf(" - Custom kernel module or ioctl to trigger the condition\n"); return 0; }

{"cve": {"id": "CVE-2025-71138", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2026-01-14T15:16:03.593", "lastModified": "2026-03-25T18:03:14.163", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/dpu: Add missing NULL pointer check for pingpong interface\n\nIt is checked almost always in dpu_encoder_phys_wb_setup_ctl(), but in a\nsingle place the check is missing.\nAlso use convenient locals instead of phys_enc->* where available.\n\nPatchwork: https://patchwork.freedesktop.org/patch/693860/"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/msm/dpu: Añadir comprobación de puntero NULL faltante para la interfaz pingpong\n\nSe comprueba casi siempre en dpu_encoder_phys_wb_setup_ctl(), pero en un solo lugar falta la comprobación.\nTambién usar variables locales convenientes en lugar de phys_enc-&gt;* donde esté disponible.\n\nPatchwork: https://patchwork.freedesktop.org/patch/693860/"}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-476"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19.1", "versionEndExcluding": "6.6.120", "matchCriteriaId": "AE4129CB-9537-4D7F-B4A1-3DC36D6D5B24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.64", "matchCriteriaId": "32BF4A52-377C-44ED-B5E6-7EA5D896E98B"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "6.18.4", "matchCriteriaId": "DC988EA0-0E32-457A-BF95-89BEB31A227B"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*", "matchCriteriaId": "9D759CCF-9E1B-41B2-81AA-CB580C5F3EEC"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*", "matchCriteriaId": "EB5B7DFC-C36B-45D8-922C-877569FDDF43"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/35ea3282136a630a3fd92b76f5a3a02651145ef1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/471baae774a30a04cf066907b60eaf3732928cb7", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/678d1c86566dfbb247ba25482d37fddde6140cc9", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}, {"url": "https://git.kernel.org/stable/c/88733a0b64872357e5ecd82b7488121503cb9cc6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"]}]}}