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CVE-2022-49061

net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected fb3bbdb859891e6bc27fd1afb3a07319f82c2ee4 before 7e59fdf9547c4f948d1d917ec7ffa5fb5ac53bdb; affected fb3bbdb859891e6bc27fd1afb3a07319f82c2ee4 before 08d5e3e954537931c8da7428034808d202e98299; affected fb3bbdb859891e6bc27fd1afb3a07319f82c2ee4 before 62a48383ebe2e159fd68425dd3e16d4c6bd6599a; affected fb3bbdb859891e6bc27fd1afb3a07319f82c2ee4 before 6c020f05253df04c3480b586fe188a3582740049; affected fb3bbdb859891e6bc27fd1afb3a07319f82c2ee4 before a6aaa00324240967272b451bfa772547bd576ee6
Linux / Linuxaffected 4.8; unaffected 0 before 4.8; unaffected 5.4.190 through 5.4.*; unaffected 5.10.112 through 5.10.*; unaffected 5.15.35 through 5.15.*; unaffected 5.17.4 through 5.17.*; unaffected 5.18 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.