CVE-2024-42084

Medium

In the Linux kernel, the following vulnerability has been resolved: ftruncate: pass a signed offset The old ftruncate() syscall, using the 32-bit off_t misses a sign extension when called in compat mode on 64-bit architectures. As a result, passing a negative length accidentally succeeds in truncating to file size between 2GiB and 4GiB. Changing the type of the compat syscall to the signed compat_off_t changes the behavior so it instead returns -EINVAL. The native entry point, the truncate() syscall and the corresponding loff_t based variants are all correct already and do not suffer from this mistake.

Package Linux Kernel
Published 2024-07-29
Last modified 2025-11-03
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

5.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
None
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected versions

Linux kernel versions 3.9 and later are affected. Fixed in 4.19.317, 5.4.279, 5.10.221, 5.15.162, 6.1.97, 6.6.37, 6.9.8, 6.10 and their respective stable series.

Affected from
≥ 3.9
Fixed in
✓ 4.19.317 4.19.x ✓ 5.4.279 5.4.x ✓ 5.10.221 5.10.x ✓ 5.15.162 5.15.x ✓ 6.1.97 6.1.x ✓ 6.6.37 6.6.x ✓ 6.9.8 6.9.x ✓ 6.10

Frequently asked questions

  • What is CVE-2024-42084?

    CVE-2024-42084 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.9 onward and has been patched in 4.19.317, 5.4.279, 5.10.221 and others. CVE-2024-42084 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-42084?

    CVE-2024-42084 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N .

  • Is there a patch available for CVE-2024-42084?

    Yes. CVE-2024-42084 has been patched. Fixed versions include 4.19.317, 5.4.279, 5.10.221 and others. If you are running Linux kernel 3.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-42084 actively exploited?

    No. CVE-2024-42084 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.