CVE-2024-49994: Linux kernel · block: fix integer overflow in BLKSECDISCARD
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 10 Nov 2026, 14:49 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
- git.kernel.org/stable/c/8476f8428e8b48fd7a0e4258fa2a96a8f4468239 (opens in a new tab)
- git.kernel.org/stable/c/a99bacb35c1416355eef957560e8fcac3a665549 (opens in a new tab)
- git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa (opens in a new tab)
- git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d (opens in a new tab)
- git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/03/msg00001.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)