ghsa-qqcr-57gp-2jmq
Vulnerability from github
Published
2024-10-21 18:30
Modified
2025-02-02 12:30
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:

block: fix integer overflow in BLKSECDISCARD

I independently rediscovered

commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
block: fix overflow in blk_ioctl_discard()

but for secure erase.

Same problem:

uint64_t r[2] = {512, 18446744073709551104ULL};
ioctl(fd, BLKSECDISCARD, r);

will enter near infinite loop inside blkdev_issue_secure_erase():

a.out: attempt to access beyond end of device
loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
bio_check_eod: 3286214 callbacks suppressed
Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-49994"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:19Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix integer overflow in BLKSECDISCARD\n\nI independently rediscovered\n\n\tcommit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155\n\tblock: fix overflow in blk_ioctl_discard()\n\nbut for secure erase.\n\nSame problem:\n\n\tuint64_t r[2] = {512, 18446744073709551104ULL};\n\tioctl(fd, BLKSECDISCARD, r);\n\nwill enter near infinite loop inside blkdev_issue_secure_erase():\n\n\ta.out: attempt to access beyond end of device\n\tloop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048\n\tbio_check_eod: 3286214 callbacks suppressed",
  "id": "GHSA-qqcr-57gp-2jmq",
  "modified": "2025-02-02T12:30:23Z",
  "published": "2024-10-21T18:30:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49994"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8476f8428e8b48fd7a0e4258fa2a96a8f4468239"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a99bacb35c1416355eef957560e8fcac3a665549"
    }
  ],
  "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"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.