github - ghsa-58vg-w4wx-wp6p

GHSA-58VG-W4WX-WP6P

Vulnerability from github – Published: 2025-07-25 15:30 – Updated: 2025-11-19 21:31

Details

In the Linux kernel, the following vulnerability has been resolved:

firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context

The current use of a mutex to protect the notifier hashtable accesses can lead to issues in the atomic context. It results in the below kernel warnings:

To address this, replace the mutex with an rwlock to protect the notifier hashtable accesses. This ensures that read-side locking does not sleep and multiple readers can acquire the lock concurrently, avoiding unnecessary contention and potential deadlocks. Writer access remains exclusive, preserving correctness.

This change resolves warnings from lockdep about potential sleep in atomic context.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-38388"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T13:15:28Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context\n\nThe current use of a mutex to protect the notifier hashtable accesses\ncan lead to issues in the atomic context. It results in the below\nkernel warnings:\n\n  |  BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258\n  |  in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0\n  |  preempt_count: 1, expected: 0\n  |  RCU nest depth: 0, expected: 0\n  |  CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0 #4\n  |  Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn\n  |  Call trace:\n  |   show_stack+0x18/0x24 (C)\n  |   dump_stack_lvl+0x78/0x90\n  |   dump_stack+0x18/0x24\n  |   __might_resched+0x114/0x170\n  |   __might_sleep+0x48/0x98\n  |   mutex_lock+0x24/0x80\n  |   handle_notif_callbacks+0x54/0xe0\n  |   notif_get_and_handle+0x40/0x88\n  |   generic_exec_single+0x80/0xc0\n  |   smp_call_function_single+0xfc/0x1a0\n  |   notif_pcpu_irq_work_fn+0x2c/0x38\n  |   process_one_work+0x14c/0x2b4\n  |   worker_thread+0x2e4/0x3e0\n  |   kthread+0x13c/0x210\n  |   ret_from_fork+0x10/0x20\n\nTo address this, replace the mutex with an rwlock to protect the notifier\nhashtable accesses. This ensures that read-side locking does not sleep and\nmultiple readers can acquire the lock concurrently, avoiding unnecessary\ncontention and potential deadlocks. Writer access remains exclusive,\npreserving correctness.\n\nThis change resolves warnings from lockdep about potential sleep in\natomic context.",
  "id": "GHSA-58vg-w4wx-wp6p",
  "modified": "2025-11-19T21:31:16Z",
  "published": "2025-07-25T15:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38388"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31405510a48dcf054abfa5b7b8d70ce1b27d1f13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8986f8f61b482c0e6efd28f0b2423d9640c20eb1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ca7a421229bbdfbe2e1e628cff5cfa782720a10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-38388 (GCVE-0-2025-38388)

Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2025-07-28 04:20

Summary

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context The current use of a mutex to protect the notifier hashtable accesses can lead to issues in the atomic context. It results in the below kernel warnings: | BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258 | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0 | preempt_count: 1, expected: 0 | RCU nest depth: 0, expected: 0 | CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0 #4 | Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn | Call trace: | show_stack+0x18/0x24 (C) | dump_stack_lvl+0x78/0x90 | dump_stack+0x18/0x24 | __might_resched+0x114/0x170 | __might_sleep+0x48/0x98 | mutex_lock+0x24/0x80 | handle_notif_callbacks+0x54/0xe0 | notif_get_and_handle+0x40/0x88 | generic_exec_single+0x80/0xc0 | smp_call_function_single+0xfc/0x1a0 | notif_pcpu_irq_work_fn+0x2c/0x38 | process_one_work+0x14c/0x2b4 | worker_thread+0x2e4/0x3e0 | kthread+0x13c/0x210 | ret_from_fork+0x10/0x20 To address this, replace the mutex with an rwlock to protect the notifier hashtable accesses. This ensures that read-side locking does not sleep and multiple readers can acquire the lock concurrently, avoiding unnecessary contention and potential deadlocks. Writer access remains exclusive, preserving correctness. This change resolves warnings from lockdep about potential sleep in atomic context.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/31405510a48dcf054…
	https://git.kernel.org/stable/c/8986f8f61b482c0e6…
	https://git.kernel.org/stable/c/9ca7a421229bbdfbe…

Impacted products

Vendor

Product

Version

Linux

Affected: e0573444edbf4ee7e3c191d3d08a4ccbd26628be , < 31405510a48dcf054abfa5b7b8d70ce1b27d1f13 (git)
Affected: e0573444edbf4ee7e3c191d3d08a4ccbd26628be , < 8986f8f61b482c0e6efd28f0b2423d9640c20eb1 (git)
Affected: e0573444edbf4ee7e3c191d3d08a4ccbd26628be , < 9ca7a421229bbdfbe2e1e628cff5cfa782720a10 (git)

Linux

Affected: 6.7
Unaffected: 0 , < 6.7 (semver)
Unaffected: 6.12.37 , ≤ 6.12.* (semver)
Unaffected: 6.15.6 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_ffa/driver.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "31405510a48dcf054abfa5b7b8d70ce1b27d1f13",
              "status": "affected",
              "version": "e0573444edbf4ee7e3c191d3d08a4ccbd26628be",
              "versionType": "git"
            },
            {
              "lessThan": "8986f8f61b482c0e6efd28f0b2423d9640c20eb1",
              "status": "affected",
              "version": "e0573444edbf4ee7e3c191d3d08a4ccbd26628be",
              "versionType": "git"
            },
            {
              "lessThan": "9ca7a421229bbdfbe2e1e628cff5cfa782720a10",
              "status": "affected",
              "version": "e0573444edbf4ee7e3c191d3d08a4ccbd26628be",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_ffa/driver.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context\n\nThe current use of a mutex to protect the notifier hashtable accesses\ncan lead to issues in the atomic context. It results in the below\nkernel warnings:\n\n  |  BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258\n  |  in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0\n  |  preempt_count: 1, expected: 0\n  |  RCU nest depth: 0, expected: 0\n  |  CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0 #4\n  |  Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn\n  |  Call trace:\n  |   show_stack+0x18/0x24 (C)\n  |   dump_stack_lvl+0x78/0x90\n  |   dump_stack+0x18/0x24\n  |   __might_resched+0x114/0x170\n  |   __might_sleep+0x48/0x98\n  |   mutex_lock+0x24/0x80\n  |   handle_notif_callbacks+0x54/0xe0\n  |   notif_get_and_handle+0x40/0x88\n  |   generic_exec_single+0x80/0xc0\n  |   smp_call_function_single+0xfc/0x1a0\n  |   notif_pcpu_irq_work_fn+0x2c/0x38\n  |   process_one_work+0x14c/0x2b4\n  |   worker_thread+0x2e4/0x3e0\n  |   kthread+0x13c/0x210\n  |   ret_from_fork+0x10/0x20\n\nTo address this, replace the mutex with an rwlock to protect the notifier\nhashtable accesses. This ensures that read-side locking does not sleep and\nmultiple readers can acquire the lock concurrently, avoiding unnecessary\ncontention and potential deadlocks. Writer access remains exclusive,\npreserving correctness.\n\nThis change resolves warnings from lockdep about potential sleep in\natomic context."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:20:50.274Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/31405510a48dcf054abfa5b7b8d70ce1b27d1f13"
        },
        {
          "url": "https://git.kernel.org/stable/c/8986f8f61b482c0e6efd28f0b2423d9640c20eb1"
        },
        {
          "url": "https://git.kernel.org/stable/c/9ca7a421229bbdfbe2e1e628cff5cfa782720a10"
        }
      ],
      "title": "firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38388",
    "datePublished": "2025-07-25T12:53:28.655Z",
    "dateReserved": "2025-04-16T04:51:24.011Z",
    "dateUpdated": "2025-07-28T04:20:50.274Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-58VG-W4WX-WP6P

CVE-2025-38388 (GCVE-0-2025-38388)

Tags

Sightings

Nomenclature