CVE-2024-44971

Summary

In the Linux kernel, the following vulnerability has been resolved:

net: dsa: bcm_sf2: Fix a possible memory leak in bcm_sf2_mdio_register()

bcm_sf2_mdio_register() calls of_phy_find_device() and then phy_device_remove() in a loop to remove existing PHY devices. of_phy_find_device() eventually calls bus_find_device(), which calls get_device() on the returned struct device * to increment the refcount. The current implementation does not decrement the refcount, which causes memory leak.

This commit adds the missing phy_device_free() call to decrement the refcount via put_device() to balance the refcount.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux771089c2a485958e423f305e974303760167b45c < b7b8d9f5e679af60c94251fd6728dde34be69a71affected
LinuxLinux771089c2a485958e423f305e974303760167b45c < c05516c072903f6fb9134b8e7e1ad4bffcdc4819affected
LinuxLinux771089c2a485958e423f305e974303760167b45c < 7feef10768ea71d468d9bbc1e0d14c461876768caffected
LinuxLinux771089c2a485958e423f305e974303760167b45c < a7d2808d67570e6acae45c2a96e0d59986888e4caffected
LinuxLinux771089c2a485958e423f305e974303760167b45c < f3d5efe18a11f94150fee8b3fda9d62079af640aaffected
LinuxLinux771089c2a485958e423f305e974303760167b45c < e3862093ee93fcfbdadcb7957f5f8974fffa806aaffected
LinuxLinux5.10affected
LinuxLinux0 < 5.10unaffected
LinuxLinux5.10.224 <= 5.10.*unaffected
LinuxLinux5.15.165 <= 5.15.*unaffected
LinuxLinux6.1.105 <= 6.1.*unaffected
LinuxLinux6.6.46 <= 6.6.*unaffected
LinuxLinux6.10.5 <= 6.10.*unaffected
LinuxLinux6.11 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References