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CVE-2024-42084

ftruncate: pass a signed offset PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 3f6d078d4accfff8b114f968259a060bfdc7c682 before c329760749b5419769e57cb2be80955d2805f9c9; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before f531d4bc6c5588d713359e42ed65e46816d841d8; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before 84bf6b64a1a0dfc6de7e1b1c776d58d608e7865a; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before dbb226d81cd02cee140139c2369791e6f61f2007; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before 5ae6af68410bdad6181ec82104bb9985a7a6a0fa; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before 836359247b0403e0634bfbc83e5bb8063fad287a; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before 930a4c369f74da26816eaaa71b5888d29b759c27; affected 3f6d078d4accfff8b114f968259a060bfdc7c682 before 4b8e88e563b5f666446d002ad0dc1e6e8e7102b0
Linux / Linuxaffected 3.9; unaffected 0 before 3.9; unaffected 4.19.317 through 4.19.*; unaffected 5.4.279 through 5.4.*; unaffected 5.10.221 through 5.10.*; unaffected 5.15.162 through 5.15.*; unaffected 6.1.97 through 6.1.*; unaffected 6.6.37 through 6.6.*; unaffected 6.9.8 through 6.9.*; unaffected 6.10 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.