cve-2024-27040
Vulnerability from cvelistv5
Published
2024-05-01 12:54
Modified
2024-11-07 16:20
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
drm/amd/display: Add 'replay' NULL check in 'edp_set_replay_allow_active()'
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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    "dateReserved": "2024-02-19T14:20:24.212Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-27040\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T13:15:49.600\",\"lastModified\":\"2024-11-07T17:35:15.913\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: Add \u0027replay\u0027 NULL check in \u0027edp_set_replay_allow_active()\u0027\\n\\nIn the first if statement, we\u0027re checking if \u0027replay\u0027 is NULL. But in\\nthe second if statement, we\u0027re not checking if \u0027replay\u0027 is NULL again\\nbefore calling replay-\u003efuncs-\u003ereplay_set_power_opt().\\n\\nif (replay == NULL \u0026\u0026 force_static)\\n    return false;\\n\\n...\\n\\nif (link-\u003ereplay_settings.replay_feature_enabled \u0026\u0026\\n    replay-\u003efuncs-\u003ereplay_set_power_opt) {\\n\\treplay-\u003efuncs-\u003ereplay_set_power_opt(replay, *power_opts, panel_inst);\\n\\tlink-\u003ereplay_settings.replay_power_opt_active = *power_opts;\\n}\\n\\nIf \u0027replay\u0027 is NULL, this will cause a null pointer dereference.\\n\\nFixes the below found by smatch:\\ndrivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active() error: we previously assumed \u0027replay\u0027 could be null (see line 887)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: drm/amd/display: agregue la verificaci\u00f3n NULL \u0027replay\u0027 en \u0027edp_set_replay_allow_active()\u0027 En la primera declaraci\u00f3n if, estamos verificando si \u0027replay\u0027 es NULL. Pero en la segunda declaraci\u00f3n if, no estamos verificando si \u0027replay\u0027 es NULL nuevamente antes de llamar a replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt(). si (repetici\u00f3n == NULL \u0026amp;\u0026amp; force_static) devuelve falso; ... if (enlace-\u0026gt;replay_settings.replay_feature_enabled \u0026amp;\u0026amp; replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt) { replay-\u0026gt;funcs-\u0026gt;replay_set_power_opt(replay, *power_opts, panel_inst); enlace-\u0026gt;replay_settings.replay_power_opt_active = *power_opts; } Si \u0027repetici\u00f3n\u0027 es NULL, esto provocar\u00e1 una desreferencia del puntero nulo. Corrige el siguiente error encontrado por smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:895 edp_set_replay_allow_active(): previamente asumimos que \u0027repetir\u0027 podr\u00eda ser nulo (ver l\u00ednea 887)\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":4.7,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.0,\"impactScore\":3.6}]},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/d0e94f4807ff0df66cf447d6b4bbb8ac830e99c3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e7cadd5d3a8ffe334d0229ba9eda4290138d56e7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f610c46771ef1047e46d61807aa7c69cd29e63d8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f6aed043ee5d75b3d1bfc452b1a9584b63c8f76b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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}


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