CVE-2025-21747 (GCVE-0-2025-21747)
Vulnerability from cvelistv5
Published
2025-02-27 02:12
Modified
2025-05-04 07:20
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/ast: astdp: Fix timeout for enabling video signal The ASTDP transmitter sometimes takes up to 1 second for enabling the video signal, while the timeout is only 200 msec. This results in a kernel error message. Increase the timeout to 1 second. An example of the error message is shown below. [ 697.084433] ------------[ cut here ]------------ [ 697.091115] ast 0000:02:00.0: [drm] drm_WARN_ON(!__ast_dp_wait_enable(ast, enabled)) [ 697.091233] WARNING: CPU: 1 PID: 160 at drivers/gpu/drm/ast/ast_dp.c:232 ast_dp_set_enable+0x123/0x140 [ast] [...] [ 697.272469] RIP: 0010:ast_dp_set_enable+0x123/0x140 [ast] [...] [ 697.415283] Call Trace: [ 697.420727] <TASK> [ 697.425908] ? show_trace_log_lvl+0x196/0x2c0 [ 697.433304] ? show_trace_log_lvl+0x196/0x2c0 [ 697.440693] ? drm_atomic_helper_commit_modeset_enables+0x30a/0x470 [ 697.450115] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.458059] ? __warn.cold+0xaf/0xca [ 697.464713] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.472633] ? report_bug+0x134/0x1d0 [ 697.479544] ? handle_bug+0x58/0x90 [ 697.486127] ? exc_invalid_op+0x13/0x40 [ 697.492975] ? asm_exc_invalid_op+0x16/0x20 [ 697.500224] ? preempt_count_sub+0x14/0xc0 [ 697.507473] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.515377] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.523227] drm_atomic_helper_commit_modeset_enables+0x30a/0x470 [ 697.532388] drm_atomic_helper_commit_tail+0x58/0x90 [ 697.540400] ast_mode_config_helper_atomic_commit_tail+0x30/0x40 [ast] [ 697.550009] commit_tail+0xfe/0x1d0 [ 697.556547] drm_atomic_helper_commit+0x198/0x1c0 This is a cosmetical problem. Enabling the video signal still works even with the error message. The problem has always been present, but only recent versions of the ast driver warn about missing the timeout.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f
Version: 4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ast/ast_dp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "589839379031cce220c9cab9f27cb5477195067e",
              "status": "affected",
              "version": "4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f",
              "versionType": "git"
            },
            {
              "lessThan": "fd39c41bcd82d5ebaaebadb944eab5598c668a90",
              "status": "affected",
              "version": "4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/ast/ast_dp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.14",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.3",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/ast: astdp: Fix timeout for enabling video signal\n\nThe ASTDP transmitter sometimes takes up to 1 second for enabling the\nvideo signal, while the timeout is only 200 msec. This results in a\nkernel error message. Increase the timeout to 1 second. An example\nof the error message is shown below.\n\n[  697.084433] ------------[ cut here ]------------\n[  697.091115] ast 0000:02:00.0: [drm] drm_WARN_ON(!__ast_dp_wait_enable(ast, enabled))\n[  697.091233] WARNING: CPU: 1 PID: 160 at drivers/gpu/drm/ast/ast_dp.c:232 ast_dp_set_enable+0x123/0x140 [ast]\n[...]\n[  697.272469] RIP: 0010:ast_dp_set_enable+0x123/0x140 [ast]\n[...]\n[  697.415283] Call Trace:\n[  697.420727]  \u003cTASK\u003e\n[  697.425908]  ? show_trace_log_lvl+0x196/0x2c0\n[  697.433304]  ? show_trace_log_lvl+0x196/0x2c0\n[  697.440693]  ? drm_atomic_helper_commit_modeset_enables+0x30a/0x470\n[  697.450115]  ? ast_dp_set_enable+0x123/0x140 [ast]\n[  697.458059]  ? __warn.cold+0xaf/0xca\n[  697.464713]  ? ast_dp_set_enable+0x123/0x140 [ast]\n[  697.472633]  ? report_bug+0x134/0x1d0\n[  697.479544]  ? handle_bug+0x58/0x90\n[  697.486127]  ? exc_invalid_op+0x13/0x40\n[  697.492975]  ? asm_exc_invalid_op+0x16/0x20\n[  697.500224]  ? preempt_count_sub+0x14/0xc0\n[  697.507473]  ? ast_dp_set_enable+0x123/0x140 [ast]\n[  697.515377]  ? ast_dp_set_enable+0x123/0x140 [ast]\n[  697.523227]  drm_atomic_helper_commit_modeset_enables+0x30a/0x470\n[  697.532388]  drm_atomic_helper_commit_tail+0x58/0x90\n[  697.540400]  ast_mode_config_helper_atomic_commit_tail+0x30/0x40 [ast]\n[  697.550009]  commit_tail+0xfe/0x1d0\n[  697.556547]  drm_atomic_helper_commit+0x198/0x1c0\n\nThis is a cosmetical problem. Enabling the video signal still works\neven with the error message. The problem has always been present, but\nonly recent versions of the ast driver warn about missing the timeout."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:20:15.135Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/589839379031cce220c9cab9f27cb5477195067e"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd39c41bcd82d5ebaaebadb944eab5598c668a90"
        }
      ],
      "title": "drm/ast: astdp: Fix timeout for enabling video signal",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21747",
    "datePublished": "2025-02-27T02:12:19.088Z",
    "dateReserved": "2024-12-29T08:45:45.758Z",
    "dateUpdated": "2025-05-04T07:20:15.135Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21747\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-27T03:15:15.337\",\"lastModified\":\"2025-02-27T03:15:15.337\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/ast: astdp: Fix timeout for enabling video signal\\n\\nThe ASTDP transmitter sometimes takes up to 1 second for enabling the\\nvideo signal, while the timeout is only 200 msec. This results in a\\nkernel error message. Increase the timeout to 1 second. An example\\nof the error message is shown below.\\n\\n[  697.084433] ------------[ cut here ]------------\\n[  697.091115] ast 0000:02:00.0: [drm] drm_WARN_ON(!__ast_dp_wait_enable(ast, enabled))\\n[  697.091233] WARNING: CPU: 1 PID: 160 at drivers/gpu/drm/ast/ast_dp.c:232 ast_dp_set_enable+0x123/0x140 [ast]\\n[...]\\n[  697.272469] RIP: 0010:ast_dp_set_enable+0x123/0x140 [ast]\\n[...]\\n[  697.415283] Call Trace:\\n[  697.420727]  \u003cTASK\u003e\\n[  697.425908]  ? show_trace_log_lvl+0x196/0x2c0\\n[  697.433304]  ? show_trace_log_lvl+0x196/0x2c0\\n[  697.440693]  ? drm_atomic_helper_commit_modeset_enables+0x30a/0x470\\n[  697.450115]  ? ast_dp_set_enable+0x123/0x140 [ast]\\n[  697.458059]  ? __warn.cold+0xaf/0xca\\n[  697.464713]  ? ast_dp_set_enable+0x123/0x140 [ast]\\n[  697.472633]  ? report_bug+0x134/0x1d0\\n[  697.479544]  ? handle_bug+0x58/0x90\\n[  697.486127]  ? exc_invalid_op+0x13/0x40\\n[  697.492975]  ? asm_exc_invalid_op+0x16/0x20\\n[  697.500224]  ? preempt_count_sub+0x14/0xc0\\n[  697.507473]  ? ast_dp_set_enable+0x123/0x140 [ast]\\n[  697.515377]  ? ast_dp_set_enable+0x123/0x140 [ast]\\n[  697.523227]  drm_atomic_helper_commit_modeset_enables+0x30a/0x470\\n[  697.532388]  drm_atomic_helper_commit_tail+0x58/0x90\\n[  697.540400]  ast_mode_config_helper_atomic_commit_tail+0x30/0x40 [ast]\\n[  697.550009]  commit_tail+0xfe/0x1d0\\n[  697.556547]  drm_atomic_helper_commit+0x198/0x1c0\\n\\nThis is a cosmetical problem. Enabling the video signal still works\\neven with the error message. The problem has always been present, but\\nonly recent versions of the ast driver warn about missing the timeout.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/ast: astdp: Se ha solucionado el problema del tiempo de espera para habilitar la se\u00f1al de v\u00eddeo. El transmisor ASTDP a veces tarda hasta 1 segundo en habilitar la se\u00f1al de v\u00eddeo, mientras que el tiempo de espera es de solo 200 ms. Esto da como resultado un mensaje de error del kernel. Aumente el tiempo de espera a 1 segundo. A continuaci\u00f3n se muestra un ejemplo del mensaje de error. [ 697.084433] ------------[ cortar aqu\u00ed ]------------ [ 697.091115] ast 0000:02:00.0: [drm] drm_WARN_ON(!__ast_dp_wait_enable(ast, enabled)) [ 697.091233] ADVERTENCIA: CPU: 1 PID: 160 en drivers/gpu/drm/ast/ast_dp.c:232 ast_dp_set_enable+0x123/0x140 [ast] [...] [ 697.272469] RIP: 0010:ast_dp_set_enable+0x123/0x140 [ast] [...] [ 697.415283] Seguimiento de llamadas: [ 697.420727]  [ __warn.cold+0xaf/0xca [ 697.464713] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.472633] ? report_bug+0x134/0x1d0 [ 697.479544] ? handle_bug+0x58/0x90 [ 697.486127] ? exc_invalid_op+0x13/0x40 [ 697.492975] ? asm_exc_invalid_op+0x16/0x20 [ 697.500224] ? preempt_count_sub+0x14/0xc0 [ 697.507473] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.515377] ? ast_dp_set_enable+0x123/0x140 [ast] [ 697.523227] drm_atomic_helper_commit_modeset_enables+0x30a/0x470 [ 697.532388] drm_atomic_helper_commit_tail+0x58/0x90 [ 697.540400] ast_mode_config_helper_atomic_commit_tail+0x30/0x40 [ast] [ 697.550009] commit_tail+0xfe/0x1d0 [ 697.556547] drm_atomic_helper_commit+0x198/0x1c0 Este es un problema cosm\u00e9tico. La habilitaci\u00f3n de la se\u00f1al de video a\u00fan funciona incluso con el mensaje de error. El problema siempre ha estado presente, pero solo las versiones recientes del controlador ast advierten sobre la p\u00e9rdida del tiempo de espera.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/589839379031cce220c9cab9f27cb5477195067e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fd39c41bcd82d5ebaaebadb944eab5598c668a90\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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