Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: cifs: fix underflow in parse_server_interfaces() In this loop, we step through the buffer and after each item we check if the size_left is greater than the minimum size we need. However, the problem is that "bytes_left" is type ssize_t while sizeof() is type size_t. That means that because of type promotion, the comparison is done as an unsigned and if we have negative bytes left the loop continues instead of ending.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fe856be475f7cf5ffcde57341d175ce9fd09434b before 7190353835b4a219abb70f90b06cdcae97f11512; affected fe856be475f7cf5ffcde57341d175ce9fd09434b before f7ff1c89fb6e9610d2b01c1821727729e6609308; affected fe856be475f7cf5ffcde57341d175ce9fd09434b before df2af9fdbc4ddde18a3371c4ca1a86596e8be301; affected fe856be475f7cf5ffcde57341d175ce9fd09434b before cffe487026be13eaf37ea28b783d9638ab147204 |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 6.1.79 through 6.1.*; unaffected 6.6.18 through 6.6.*; unaffected 6.7.6 through 6.7.*; unaffected 6.8 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7190353835b4a219abb70f90b06cdcae97f11512
- https://git.kernel.org/stable/c/f7ff1c89fb6e9610d2b01c1821727729e6609308
- https://git.kernel.org/stable/c/df2af9fdbc4ddde18a3371c4ca1a86596e8be301
- https://git.kernel.org/stable/c/cffe487026be13eaf37ea28b783d9638ab147204
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.