github - ghsa-2mj9-cv5h-vqxp

GHSA-2MJ9-CV5H-VQXP

Vulnerability from github – Published: 2024-09-18 09:30 – Updated: 2024-09-20 21:31

Details

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

misc: fastrpc: Fix double free of 'buf' in error path

smatch warning: drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf'

In fastrpc_req_mmap() error path, the fastrpc buffer is freed in fastrpc_req_munmap_impl() if unmap is successful.

But in the end, there is an unconditional call to fastrpc_buf_free(). So the above case triggers the double free of fastrpc buf.

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-46741"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-18T08:15:03Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix double free of \u0027buf\u0027 in error path\n\nsmatch warning:\ndrivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of \u0027buf\u0027\n\nIn fastrpc_req_mmap() error path, the fastrpc buffer is freed in\nfastrpc_req_munmap_impl() if unmap is successful.\n\nBut in the end, there is an unconditional call to fastrpc_buf_free().\nSo the above case triggers the double free of fastrpc buf.",
  "id": "GHSA-2mj9-cv5h-vqxp",
  "modified": "2024-09-20T21:31:38Z",
  "published": "2024-09-18T09:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46741"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfc1704d909dc9911a558b1a5833d3d61a43a1f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8c276d4dc0e19ee48385f74426aebc855b49aaf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f77dc8a75859e559f3238a6d906206259227985e"
    }
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  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-46741 (GCVE-0-2024-46741)

Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2025-05-04 09:33

Summary

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix double free of 'buf' in error path smatch warning: drivers/misc/fastrpc.c:1926 fastrpc_req_mmap() error: double free of 'buf' In fastrpc_req_mmap() error path, the fastrpc buffer is freed in fastrpc_req_munmap_impl() if unmap is successful. But in the end, there is an unconditional call to fastrpc_buf_free(). So the above case triggers the double free of fastrpc buf.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f77dc8a75859e559f…
	https://git.kernel.org/stable/c/bfc1704d909dc9911…
	https://git.kernel.org/stable/c/e8c276d4dc0e19ee4…

Impacted products

Vendor

Product

Version

Linux

Affected: 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 , < f77dc8a75859e559f3238a6d906206259227985e (git)
Affected: 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 , < bfc1704d909dc9911a558b1a5833d3d61a43a1f2 (git)
Affected: 72fa6f7820c4cf96c5f7aabc4e54bdf52d1e2ac2 , < e8c276d4dc0e19ee48385f74426aebc855b49aaf (git)

Linux

Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.51 , ≤ 6.6.* (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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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-2MJ9-CV5H-VQXP

CVE-2024-46741 (GCVE-0-2024-46741)

Tags

Sightings

Nomenclature