CVE-2024-42084
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.
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/4b8e88e563b5f666446d002ad0dc1e6e8e7102b0Patch
- https://git.kernel.org/stable/c/5ae6af68410bdad6181ec82104bb9985a7a6a0faPatch
- https://git.kernel.org/stable/c/836359247b0403e0634bfbc83e5bb8063fad287aPatch
- https://git.kernel.org/stable/c/84bf6b64a1a0dfc6de7e1b1c776d58d608e7865aPatch
- https://git.kernel.org/stable/c/930a4c369f74da26816eaaa71b5888d29b759c27Patch
- https://git.kernel.org/stable/c/c329760749b5419769e57cb2be80955d2805f9c9Patch
- https://git.kernel.org/stable/c/dbb226d81cd02cee140139c2369791e6f61f2007Patch
- https://git.kernel.org/stable/c/f531d4bc6c5588d713359e42ed65e46816d841d8Patch
- https://git.kernel.org/stable/c/4b8e88e563b5f666446d002ad0dc1e6e8e7102b0Patch
- https://git.kernel.org/stable/c/5ae6af68410bdad6181ec82104bb9985a7a6a0faPatch
- https://git.kernel.org/stable/c/836359247b0403e0634bfbc83e5bb8063fad287aPatch
- https://git.kernel.org/stable/c/84bf6b64a1a0dfc6de7e1b1c776d58d608e7865aPatch
- https://git.kernel.org/stable/c/930a4c369f74da26816eaaa71b5888d29b759c27Patch
- https://git.kernel.org/stable/c/c329760749b5419769e57cb2be80955d2805f9c9Patch
- https://git.kernel.org/stable/c/dbb226d81cd02cee140139c2369791e6f61f2007Patch
- https://git.kernel.org/stable/c/f531d4bc6c5588d713359e42ed65e46816d841d8Patch
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.