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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/589839379031cce220c9cab9f27cb5477195067e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd39c41bcd82d5ebaaebadb944eab5598c668a90
Impacted products
Vendor Product Version
Linux Linux Version: 4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f
Version: 4e29cc7c5c673299cfbaf4982fc8b6a72c9f706f
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   Linux Linux Version: 6.13
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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\":\"Received\",\"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.\"}],\"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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