CVE-2025-37802 (GCVE-0-2025-37802)

Vulnerability from cvelistv5 – Published: 2025-05-08 06:26 – Updated: 2025-05-26 05:21
VLAI?
Title
ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING"
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix WARNING "do not call blocking ops when !TASK_RUNNING" wait_event_timeout() will set the state of the current task to TASK_UNINTERRUPTIBLE, before doing the condition check. This means that ksmbd_durable_scavenger_alive() will try to acquire the mutex while already in a sleeping state. The scheduler warns us by giving the following warning: do not call blocking ops when !TASK_RUNNING; state=2 set at [<0000000061515a6f>] prepare_to_wait_event+0x9f/0x6c0 WARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160 mutex lock is not needed in ksmbd_durable_scavenger_alive().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 8f805b3746d2f41702c77cba22f94f8415fadd1a (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < cd161198e091e8a62b9bd631be970ea9a87d2d6a (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 1df0d4c616138784e033ad337961b6e1a6bcd999 (git)
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    Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 6.12.26 , ≤ 6.12.* (semver)
Unaffected: 6.14.5 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/server/vfs_cache.c"
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                }
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              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix WARNING \"do not call blocking ops when !TASK_RUNNING\"\n\nwait_event_timeout() will set the state of the current\ntask to TASK_UNINTERRUPTIBLE, before doing the condition check. This\nmeans that ksmbd_durable_scavenger_alive() will try to acquire the mutex\nwhile already in a sleeping state. The scheduler warns us by giving\nthe following warning:\n\ndo not call blocking ops when !TASK_RUNNING; state=2 set at\n [\u003c0000000061515a6f\u003e] prepare_to_wait_event+0x9f/0x6c0\nWARNING: CPU: 2 PID: 4147 at kernel/sched/core.c:10099 __might_sleep+0x12f/0x160\n\nmutex lock is not needed in ksmbd_durable_scavenger_alive()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:21:11.662Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/8f805b3746d2f41702c77cba22f94f8415fadd1a"
        },
        {
          "url": "https://git.kernel.org/stable/c/cd161198e091e8a62b9bd631be970ea9a87d2d6a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1df0d4c616138784e033ad337961b6e1a6bcd999"
        }
      ],
      "title": "ksmbd: fix WARNING \"do not call blocking ops when !TASK_RUNNING\"",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37802",
    "datePublished": "2025-05-08T06:26:03.075Z",
    "dateReserved": "2025-04-16T04:51:23.941Z",
    "dateUpdated": "2025-05-26T05:21:11.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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