CVE-2026-43301 (GCVE-0-2026-43301)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:11 – Updated: 2026-05-08 13:11
VLAI?
Title
media: chips-media: wave5: Fix PM runtime usage count underflow
Summary
In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Fix PM runtime usage count underflow Replace pm_runtime_put_sync() with pm_runtime_dont_use_autosuspend() in the remove path to properly pair with pm_runtime_use_autosuspend() from probe. This allows pm_runtime_disable() to handle reference count cleanup correctly regardless of current suspend state. The driver calls pm_runtime_put_sync() unconditionally in remove, but the device may already be suspended due to autosuspend configured in probe. When autosuspend has already suspended the device, the usage count is 0, and pm_runtime_put_sync() decrements it to -1. This causes the following warning on module unload: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 963 at kernel/kthread.c:1430 kthread_destroy_worker+0x84/0x98 ... vdec 30210000.video-codec: Runtime PM usage count underflow!
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9707a6254a8a6b978bde811a44fe07d86c229d1c , < 3a278a55ead50db2444c8f01410c7f5a68723990 (git)
Affected: 9707a6254a8a6b978bde811a44fe07d86c229d1c , < 0bffda02317989f8d5cdc2d4462a4110b1290cf0 (git)
Affected: 9707a6254a8a6b978bde811a44fe07d86c229d1c , < 9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38 (git)
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    Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/media/platform/chips-media/wave5/wave5-vpu.c"
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      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix PM runtime usage count underflow\n\nReplace pm_runtime_put_sync() with pm_runtime_dont_use_autosuspend() in\nthe remove path to properly pair with pm_runtime_use_autosuspend() from\nprobe. This allows pm_runtime_disable() to handle reference count cleanup\ncorrectly regardless of current suspend state.\n\nThe driver calls pm_runtime_put_sync() unconditionally in remove, but the\ndevice may already be suspended due to autosuspend configured in probe.\nWhen autosuspend has already suspended the device, the usage count is 0,\nand pm_runtime_put_sync() decrements it to -1.\n\nThis causes the following warning on module unload:\n\n  ------------[ cut here ]------------\n  WARNING: CPU: 1 PID: 963 at kernel/kthread.c:1430\n    kthread_destroy_worker+0x84/0x98\n  ...\n  vdec 30210000.video-codec: Runtime PM usage count underflow!"
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      "providerMetadata": {
        "dateUpdated": "2026-05-08T13:11:22.234Z",
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        "shortName": "Linux"
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      ],
      "title": "media: chips-media: wave5: Fix PM runtime usage count underflow",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43301",
    "datePublished": "2026-05-08T13:11:22.234Z",
    "dateReserved": "2026-05-01T14:12:56.000Z",
    "dateUpdated": "2026-05-08T13:11:22.234Z",
    "state": "PUBLISHED"
  },
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    "nvd": "{\"cve\":{\"id\":\"CVE-2026-43301\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-08T14:16:37.340\",\"lastModified\":\"2026-05-08T14:16:37.340\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmedia: chips-media: wave5: Fix PM runtime usage count underflow\\n\\nReplace pm_runtime_put_sync() with pm_runtime_dont_use_autosuspend() in\\nthe remove path to properly pair with pm_runtime_use_autosuspend() from\\nprobe. This allows pm_runtime_disable() to handle reference count cleanup\\ncorrectly regardless of current suspend state.\\n\\nThe driver calls pm_runtime_put_sync() unconditionally in remove, but the\\ndevice may already be suspended due to autosuspend configured in probe.\\nWhen autosuspend has already suspended the device, the usage count is 0,\\nand pm_runtime_put_sync() decrements it to -1.\\n\\nThis causes the following warning on module unload:\\n\\n  ------------[ cut here ]------------\\n  WARNING: CPU: 1 PID: 963 at kernel/kthread.c:1430\\n    kthread_destroy_worker+0x84/0x98\\n  ...\\n  vdec 30210000.video-codec: Runtime PM usage count underflow!\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0bffda02317989f8d5cdc2d4462a4110b1290cf0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3a278a55ead50db2444c8f01410c7f5a68723990\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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