github - ghsa-fmqm-f3m4-fg43

ghsa-fmqm-f3m4-fg43

Vulnerability from github

Published

2024-05-22 09:31

Modified

2024-10-31 18:31

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: mxsfb: Fix NULL pointer dereference crash on unload

The mxsfb->crtc.funcs may already be NULL when unloading the driver, in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from mxsfb_unload() leads to NULL pointer dereference.

Since all we care about is masking the IRQ and mxsfb->base is still valid, just use that to clear and mask the IRQ.

Show details on source website

JSON

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{
   affected: [],
   aliases: [
      "CVE-2021-47471",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-476",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-05-22T07:15:11Z",
      severity: "MODERATE",
   },
   details: "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm: mxsfb: Fix NULL pointer dereference crash on unload\n\nThe mxsfb->crtc.funcs may already be NULL when unloading the driver,\nin which case calling mxsfb_irq_disable() via drm_irq_uninstall() from\nmxsfb_unload() leads to NULL pointer dereference.\n\nSince all we care about is masking the IRQ and mxsfb->base is still\nvalid, just use that to clear and mask the IRQ.",
   id: "GHSA-fmqm-f3m4-fg43",
   modified: "2024-10-31T18:31:16Z",
   published: "2024-05-22T09:31:45Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-47471",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8",
      },
      {
         type: "WEB",
         url: "https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472",
      },
   ],
   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-2021-47471

Vulnerability from cvelistv5

Published

2024-05-22 06:23

Modified

2024-12-19 07:43

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: drm: mxsfb: Fix NULL pointer dereference crash on unload The mxsfb->crtc.funcs may already be NULL when unloading the driver, in which case calling mxsfb_irq_disable() via drm_irq_uninstall() from mxsfb_unload() leads to NULL pointer dereference. Since all we care about is masking the IRQ and mxsfb->base is still valid, just use that to clear and mask the IRQ.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/f40c2281d2c0674d32ba732fee45222d76495472
	https://git.kernel.org/stable/c/b0e6db0656ddfd8bb57303c2ef61ee1c1cc694a8
	https://git.kernel.org/stable/c/3cfc183052c3dbf8eae57b6c1685dab00ed3db4a

Impacted products

Vendor

Product

Version

▼

Linux

Version: ae1ed0093281939b80664a687689f12436c0e874
Version: ae1ed0093281939b80664a687689f12436c0e874
Version: ae1ed0093281939b80664a687689f12436c0e874

Linux

Version: 5.10

Show details on NVD website

JSON

To clipboard

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                     attackComplexity: "LOW",
                     attackVector: "LOCAL",
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                     confidentialityImpact: "NONE",
                     integrityImpact: "NONE",
                     privilegesRequired: "LOW",
                     scope: "UNCHANGED",
                     userInteraction: "NONE",
                     vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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                        timestamp: "2024-05-29T18:40:54.294735Z",
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            problemTypes: [
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      cna: {
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      datePublished: "2024-05-22T06:23:28.903Z",
      dateReserved: "2024-05-22T06:20:56.199Z",
      dateUpdated: "2024-12-19T07:43:03.901Z",
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   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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