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VulnerabilityPublished Updated

CVE-2024-49994: Linux kernel · block: fix integer overflow in BLKSECDISCARD

Affects Linux kernelSource GCVE Database

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Not known to be exploited.

Data as of 10 Nov 2026, 14:49 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Oct 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.

What to do

Description

CVE-2024-49994 is an integer overflow vulnerability in the Linux kernel's block subsystem affecting the BLKSECDISCARD ioctl operation. The flaw can cause a near infinite loop inside the blkdev_issue_secure_erase() function when processing specially crafted input, potentially leading to attempts to access beyond the end of the device.

References

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