wifi: p54: validate firmware record lengths
Impact
In the Linux kernel, the following vulnerability has been resolved:
Source excerpt · LinuxAffected packages
Affected products
Vendor version evidence. Product records are separate from automatic dependency matching.
Linux · Linux
Other versions: unaffected
| Version / range | Source status |
|---|---|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before f641066b0ddcd1b0cf007c0d04f9c966f6e888ae | affected |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 8c4f962f368d5e17481f3c2c5a43028953e137a5 | affected |
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before db7b86bd97b380ece8fa39cfdd7502a9fd35e56f | affected |
| 0 to before 6.18.59 | affected |
| 0 to before 7.2.13 | affected |
Linux · Linux
Other versions: affected
| Version / range | Source status |
|---|---|
| 6.18.59 through 6.18.* (inclusive) | unaffected |
| 7.2.13 through 7.2.* (inclusive) | unaffected |
| 7.3 through * (inclusive) | unaffected |
Original source description
In the Linux kernel, the following vulnerability has been resolved:
wifi: p54: validate firmware record lengths
The p54 firmware parser accesses component ID and component version records without checking that their lengths cover the fields being read. A malformed record can therefore make the parser read past the record.
Validate the component ID and component version record lengths before accessing their data. The descriptor record is also checked against the shortest descriptor length found in the supported firmware images.
Reject descriptor values that underflow the RX offset or produce an empty RX range before updating the driver state.