CVE-2026-64101
Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
19/07/2026
Last modified:
11/08/2026
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
fwctl: pds: Validate RPC input size before parsing<br />
<br />
The fwctl core allocates the device-specific RPC input buffer with<br />
fwctl_rpc.in_len and passes that buffer to the driver callback.<br />
<br />
pdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls<br />
pdsfc_validate_rpc(), which reads fields from that structure before<br />
checking that the input buffer is large enough to contain it. A short<br />
in_len can make pds_fwctl read beyond the allocation.<br />
<br />
Reject pds RPC buffers that are smaller than struct fwctl_rpc_pds before<br />
parsing any pds-specific fields.
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.15 (including) | 6.18.34 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.19 (including) | 7.0.11 (excluding) |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page