Description
In the Linux kernel, the following vulnerability has been resolved: net/mdiobus: Fix potential out-of-bounds clause 45 read/write access When using publicly available tools like 'mdio-tools' to read/write data from/to network interface and its PHY via C45 (clause 45) mdiobus, there is no verification of parameters passed to the ioctl and it accepts any mdio address. Currently there is support for 32 addresses in kernel via PHY_MAX_ADDR define, but it is possible to pass higher value than that via ioctl. While read/write operation should generally fail in this case, mdiobus provides stats array, where wrong address may allow out-of-bounds read/write. Fix that by adding address verification before C45 read/write operation. While this excludes this access from any statistics, it improves security of read/write operation.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
4e4aafcddbbfcdd6eed5780e190fcbfac8b4685a to < abb0605ca00979a49572a6516f6db22c3dc57223affected4e4aafcddbbfcdd6eed5780e190fcbfac8b4685a to < 31bf7b2b92563a352788cf9df3698682f659baccaffected4e4aafcddbbfcdd6eed5780e190fcbfac8b4685a to < 4ded22f7f3ce9714ed72c3e9c68fea1cb9388ae7affected4e4aafcddbbfcdd6eed5780e190fcbfac8b4685a to < 260388f79e94fb3026c419a208ece8358bb7b555affected
Linux Linux
Default version status: affected
6.3affected0 to < 6.3unaffected6.6.94 to ≤ 6.6.*unaffected6.12.34 to ≤ 6.12.*unaffected6.15.3 to ≤ 6.15.*unaffected6.16 to ≤ *unaffected