CVE-2022-49490

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Because of this, there is a possibility of\nmdp5_pipe_release hitting a NULL dereference error.\n\nTo avoid this, let's have mdp5_pipe_release check if\nmdp5_get_global_state returns an error and propogate that error.\n\nChanges since v1:\n- Separated declaration and initialization of *new_state to avoid\n compiler warning\n- Fixed some spelling mistakes in commit message\n\nChanges since v2:\n- Return 0 in case where hwpipe is NULL as this is considered normal\n behavior\n- Added 2nd patch in series to fix a similar NULL dereference issue in\n mdp5_mixer_release\n\nPatchwork: https://patchwork.freedesktop.org/patch/485179/"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.c", "drivers/gpu/drm/msm/disp/mdp5/mdp5_pipe.h", "drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c"], "versions": [{"version": 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"https://git.kernel.org/stable/c/d59be579fa932c46b908f37509f319cbd4ca9a68"}], "title": "drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected", "x_generator": {"engine": "bippy-1.2.0"}}}}

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Because of this, there is a possibility of\nmdp5_pipe_release hitting a NULL dereference error.\n\nTo avoid this, let's have mdp5_pipe_release check if\nmdp5_get_global_state returns an error and propogate that error.\n\nChanges since v1:\n- Separated declaration and initialization of *new_state to avoid\n compiler warning\n- Fixed some spelling mistakes in commit message\n\nChanges since v2:\n- Return 0 in case where hwpipe is NULL as this is considered normal\n behavior\n- Added 2nd patch in series to fix a similar NULL dereference issue in\n mdp5_mixer_release\n\nPatchwork: https://patchwork.freedesktop.org/patch/485179/"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/mdp5: Devuelve un c\u00f3digo de error en mdp5_pipe_release cuando se detecta un bloqueo mdp5_get_global_state corre el riesgo de alcanzar un -EDEADLK al adquirir el bloqueo modeset, pero actualmente mdp5_pipe_release no verifica si se devuelve un error. Debido a esto, existe la posibilidad de que mdp5_pipe_release alcance un error de desreferencia NULL. Para evitar esto, hagamos que mdp5_pipe_release verifique si mdp5_get_global_state devuelve un error y propague ese error. Cambios desde v1: - Declaraci\u00f3n separada e inicializaci\u00f3n de *new_state para evitar advertencias del compilador - Se corrigieron algunos errores ortogr\u00e1ficos en el mensaje de confirmaci\u00f3n Cambios desde v2: - Devuelve 0 en caso de que hwpipe sea NULL, ya que esto se considera un comportamiento normal - Se agreg\u00f3 el segundo parche en serie para corregir un problema de desreferencia NULL similar en mdp5_mixer_release Patchwork: https://patchwork.freedesktop.org/patch/485179/"}], "id": "CVE-2022-49490", "lastModified": "2026-06-17T05:18:13.017", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:01:25.183", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/04bef5f1ba8ea6d7c1c8f5f65e0395c62db59cb8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/19964dfb39bda4d7716a71009488f0668ecbcf52"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/33dc5aac46e0fad8f5eb193e5906ed0eb6b66ceb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/49dc28b4b2e28ef7564e355c91487996c1cbebd7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/776f5c58bfe16cf322d71eeed3c5dda1eeac7e6b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b2aa2c4efe93e2580d6a8774b04fe2b99756a322"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d59be579fa932c46b908f37509f319cbd4ca9a68"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected", "id": "2348145", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348145"}, "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/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected\nmdp5_get_global_state runs the risk of hitting a -EDEADLK when acquiring\nthe modeset lock, but currently mdp5_pipe_release doesn't check for if\nan error is returned. Because of this, there is a possibility of\nmdp5_pipe_release hitting a NULL dereference error.\nTo avoid this, let's have mdp5_pipe_release check if\nmdp5_get_global_state returns an error and propogate that error.\nChanges since v1:\n- Separated declaration and initialization of *new_state to avoid\ncompiler warning\n- Fixed some spelling mistakes in commit message\nChanges since v2:\n- Return 0 in case where hwpipe is NULL as this is considered normal\nbehavior\n- Added 2nd patch in series to fix a similar NULL dereference issue in\nmdp5_mixer_release\nPatchwork: https://patchwork.freedesktop.org/patch/485179/"], "name": "CVE-2022-49490", "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": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49490\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49490\nhttps://lore.kernel.org/linux-cve-announce/2025022606-CVE-2022-49490-e38c@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T21:07:54.061049+00:00", "updated": "2025-07-13T21:07:54.061103+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}