github - ghsa-xv6f-4q9w-8q96

ghsa-xv6f-4q9w-8q96

Vulnerability from github

Published

2024-04-03 15:30

Modified

2024-04-03 15:30

Details

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

parisc: BTLB: Fix crash when setting up BTLB at CPU bringup

When using hotplug and bringing up a 32-bit CPU, ask the firmware about the BTLB information to set up the static (block) TLB entries.

For that write access to the static btlb_info struct is needed, but since it is marked __ro_after_init the kernel segfaults with missing write permissions.

Fix the crash by dropping the __ro_after_init annotation.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26705"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-03T15:15:53Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: BTLB: Fix crash when setting up BTLB at CPU bringup\n\nWhen using hotplug and bringing up a 32-bit CPU, ask the firmware about the\nBTLB information to set up the static (block) TLB entries.\n\nFor that write access to the static btlb_info struct is needed, but\nsince it is marked __ro_after_init the kernel segfaults with missing\nwrite permissions.\n\nFix the crash by dropping the __ro_after_init annotation.",
  "id": "GHSA-xv6f-4q9w-8q96",
  "modified": "2024-04-03T15:30:43Z",
  "published": "2024-04-03T15:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26705"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b"
    },
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      "url": "https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486"
    },
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      "url": "https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b"
    }
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  "schema_version": "1.4.0",
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}

cve-2024-26705

Vulnerability from cvelistv5

Published

2024-04-03 14:55

Modified

2024-12-19 08:45

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: parisc: BTLB: Fix crash when setting up BTLB at CPU bringup When using hotplug and bringing up a 32-bit CPU, ask the firmware about the BTLB information to set up the static (block) TLB entries. For that write access to the static btlb_info struct is needed, but since it is marked __ro_after_init the kernel segfaults with missing write permissions. Fix the crash by dropping the __ro_after_init annotation.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/54944f45470af5965fb9c28cf962ec30f38a8f5b
	https://git.kernel.org/stable/c/aa52be55276614d33f22fbe7da36c40d6432d10b
	https://git.kernel.org/stable/c/913b9d443a0180cf0de3548f1ab3149378998486

Impacted products

Vendor

Product

Version

▼

Linux

Version: e5ef93d02d6c9cc3a14e7348481c9e41a528caa1
Version: e5ef93d02d6c9cc3a14e7348481c9e41a528caa1
Version: e5ef93d02d6c9cc3a14e7348481c9e41a528caa1

Linux

Version: 6.6

Show details on NVD website

JSON

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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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