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.
References
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2024-07-29 17:15
Updated : 2025-11-03 22:17
NVD link : CVE-2024-42084
Mitre link : CVE-2024-42084
CVE.ORG link : CVE-2024-42084
JSON object : View
Products Affected
linux
- linux_kernel
CWE
