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VulnerabilityPublished Updated

CVE-2024-50272: Linux kernel · filemap: Fix bounds checking in filemap_read()

Source GCVE Database

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 29 Oct 2026, 22:59 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Nov 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 29 Oct 2026.

What to do

AI-suggested

The vulnerability has been resolved in the Linux kernel. Until patched, avoid conditions that might trigger the infinite loop, such as specific iocb->ki_pos values near filesystem limits combined with certain iterator counts, especially in environments using loopback NFS mounts with "localio" optimization.

Description

CVE-2024-50272 is a medium severity vulnerability in the Linux kernel's filemap_read() function. It involves improper bounds checking when the caller provides an iocb->ki_pos value near the filesystem upper limit combined with an iterator count that causes an overflow. This flaw can cause filemap_read() to enter an infinite loop, potentially leading to denial of service. The issue was identified during testing with xfstests generic/525 using the "localio" optimization for loopback NFS mounts.

References

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