github - ghsa-v5pw-w6w2-2r5q

ghsa-v5pw-w6w2-2r5q

Vulnerability from github

Published

2024-10-21 18:30

Modified

2024-11-01 15:31

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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

drm/xe/guc_submit: add missing locking in wedged_fini

Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock.

(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)

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{
   affected: [],
   aliases: [
      "CVE-2024-49943",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-667",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-10-21T18:15:15Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/guc_submit: add missing locking in wedged_fini\n\nAny non-wedged queue can have a zero refcount here and can be running\nconcurrently with an async queue destroy, therefore dereferencing the\nqueue ptr to check wedge status after the lookup can trigger UAF if\nqueue is not wedged.  Fix this by keeping the submission_state lock held\naround the check to postpone the free and make the check safe, before\ndropping again around the put() to avoid the deadlock.\n\n(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)",
   id: "GHSA-v5pw-w6w2-2r5q",
   modified: "2024-11-01T15:31:45Z",
   published: "2024-10-21T18:30:58Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-49943",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/790533e44bfc7af929842fccd9674c9f424d4627",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/d88f9bab7e62dd0dbe983fa70cf040042a60cc84",
      },
   ],
   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-2024-49943

Vulnerability from cvelistv5

Published

2024-10-21 18:02

Modified

2024-12-19 09:29

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/guc_submit: add missing locking in wedged_fini Any non-wedged queue can have a zero refcount here and can be running concurrently with an async queue destroy, therefore dereferencing the queue ptr to check wedge status after the lookup can trigger UAF if queue is not wedged. Fix this by keeping the submission_state lock held around the check to postpone the free and make the check safe, before dropping again around the put() to avoid the deadlock. (cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)

References

▼	URL	Tags
	https://git.kernel.org/stable/c/d88f9bab7e62dd0dbe983fa70cf040042a60cc84
	https://git.kernel.org/stable/c/790533e44bfc7af929842fccd9674c9f424d4627

Impacted products

Vendor

Product

Version

▼

Linux

Version: 8ed9aaae39f39130b7a3eb2726be05d7f64b344c
Version: 8ed9aaae39f39130b7a3eb2726be05d7f64b344c

Linux

Version: 6.11

Show details on NVD website

JSON

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   containers: {
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            metrics: [
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                  other: {
                     content: {
                        id: "CVE-2024-49943",
                        options: [
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                              Exploitation: "none",
                           },
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                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-10-22T13:37:27.904932Z",
                        version: "2.0.3",
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               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
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      ],
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                  },
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                     lessThanOrEqual: "*",
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         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/guc_submit: add missing locking in wedged_fini\n\nAny non-wedged queue can have a zero refcount here and can be running\nconcurrently with an async queue destroy, therefore dereferencing the\nqueue ptr to check wedge status after the lookup can trigger UAF if\nqueue is not wedged.  Fix this by keeping the submission_state lock held\naround the check to postpone the free and make the check safe, before\ndropping again around the put() to avoid the deadlock.\n\n(cherry picked from commit d28af0b6b9580b9f90c265a7da0315b0ad20bbfd)",
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         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T09:29:49.220Z",
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         x_generator: {
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   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2024-49943",
      datePublished: "2024-10-21T18:02:01.794Z",
      dateReserved: "2024-10-21T12:17:06.044Z",
      dateUpdated: "2024-12-19T09:29:49.220Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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