Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow A static code analysis tool flagged the possibility of buffer overflow when using copy_from_user() for a debugfs entry. Currently, it is possible that copy_from_user() copies more bytes than what would fit in the mybuf char array. Add a min() restriction check between sizeof(mybuf) - 1 and nbytes passed from the userspace buffer to protect against buffer overflow.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before 644a9d5e22761a41d5005a26996a643da96de962; affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before e0e7faee3a7dd6f51350cda64997116a247eb045; affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before f91037487036e2d2f18d3c2481be6b9a366bde7f; affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before a9df88cb31dcbd72104ec5883f35cbc1fb587e47; affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before ad050f6cf681ebb850a9d4bc19474d3896476301; affected 6a828b0f6192b4930894925d1c1d0dc1f1d99e6e before c6087b82a9146826564a55c5ca0164cac40348f5 |
| Linux / Linux | affected 5.1; unaffected 0 before 5.1; unaffected 5.4.244 through 5.4.*; unaffected 5.10.181 through 5.10.*; unaffected 5.15.113 through 5.15.*; unaffected 6.1.30 through 6.1.*; unaffected 6.3.4 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/644a9d5e22761a41d5005a26996a643da96de962
- https://git.kernel.org/stable/c/e0e7faee3a7dd6f51350cda64997116a247eb045
- https://git.kernel.org/stable/c/f91037487036e2d2f18d3c2481be6b9a366bde7f
- https://git.kernel.org/stable/c/a9df88cb31dcbd72104ec5883f35cbc1fb587e47
- https://git.kernel.org/stable/c/ad050f6cf681ebb850a9d4bc19474d3896476301
- https://git.kernel.org/stable/c/c6087b82a9146826564a55c5ca0164cac40348f5