Vulnerability-Lookup

GHSA-3WWR-WV4X-4GXG

Vulnerability from github – Published: 2024-03-18 12:30 – Updated: 2024-12-12 15:31

Details

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

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks.

Fix this by using a stack buffer when calling copy_to_user.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52615"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-18T11:15:08Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-3wwr-wv4x-4gxg",
  "modified": "2024-12-12T15:31:06Z",
  "published": "2024-03-18T12:30:35Z",
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CVE-2023-52615 (GCVE-0-2023-52615)

Vulnerability from cvelistv5 – Published: 2024-03-18 10:14 – Updated: 2026-05-11 19:30

Title

hwrng: core - Fix page fault dead lock on mmap-ed hwrng

Summary

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

Assigner

Linux

References

10 references

URL	Tags
https://git.kernel.org/stable/c/eafd83b92f6c04400…
https://git.kernel.org/stable/c/5030d4c798863ccb2…
https://git.kernel.org/stable/c/c6a8111aacbfe7a8a…
https://git.kernel.org/stable/c/26cc6d7006f922df6…
https://git.kernel.org/stable/c/aa8aa16ed9adf1df0…
https://git.kernel.org/stable/c/ecabe8cd456d3bf81…
https://git.kernel.org/stable/c/6822a14271786150e…
https://git.kernel.org/stable/c/78aafb3884f6bc663…
https://lists.debian.org/debian-lts-announce/2024…	x_transferred
https://lists.debian.org/debian-lts-announce/2024…	x_transferred

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < eafd83b92f6c044007a3591cbd476bcf90455990 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 5030d4c798863ccb266563201b341a099e8cdd48 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < c6a8111aacbfe7a8a70f46cc0de8eed00561693c (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 26cc6d7006f922df6cc4389248032d955750b2a0 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < aa8aa16ed9adf1df05bb339d588cf485a011839e (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < ecabe8cd456d3bf81e92c53b074732f3140f170d (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 6822a14271786150e178869f1495cc03e74c5029 (git) Affected: 9996508b3353063f2d6c48c1a28a84543d72d70b , < 78aafb3884f6bc6636efcc1760c891c8500b9922 (git)
Linux	Linux	Affected: 2.6.33 Unaffected: 0 , < 2.6.33 (semver) Unaffected: 4.19.307 , ≤ 4.19.* (semver) Unaffected: 5.4.269 , ≤ 5.4.* (semver) Unaffected: 5.10.210 , ≤ 5.10.* (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.76 , ≤ 6.1.* (semver) Unaffected: 6.6.15 , ≤ 6.6.* (semver) Unaffected: 6.7.3 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

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-3WWR-WV4X-4GXG

CVE-2023-52615 (GCVE-0-2023-52615)

Tags

Sightings

Nomenclature