CVE-2022-49061
Description
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link When using a fixed-link, the altr_tse_pcs driver crashes due to null-pointer dereference as no phy_device is provided to tse_pcs_fix_mac_speed function. Fix this by adding a check for phy_dev before calling the tse_pcs_fix_mac_speed() function. Also clean up the tse_pcs_fix_mac_speed function a bit. There is no need to check for splitter_base and sgmii_adapter_base because the driver will fail if these 2 variables are not derived from the device tree.
How to fix
- linux linux_kernel5.4.190, 5.10.112, 5.15.35, 5.17.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.8 ≤ v < 5.4.190, 5.5 ≤ v < 5.10.112, 5.11 ≤ v < 5.15.35, 5.16 ≤ v < 5.17.4, 5.18 | 5.4.190, 5.10.112, 5.15.35, 5.17.4 |
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