Description
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.
Product status
771089c2a485958e423f305e974303760167b45c (git) before b7b8d9f5e679af60c94251fd6728dde34be69a71
771089c2a485958e423f305e974303760167b45c (git) before c05516c072903f6fb9134b8e7e1ad4bffcdc4819
771089c2a485958e423f305e974303760167b45c (git) before 7feef10768ea71d468d9bbc1e0d14c461876768c
771089c2a485958e423f305e974303760167b45c (git) before a7d2808d67570e6acae45c2a96e0d59986888e4c
771089c2a485958e423f305e974303760167b45c (git) before f3d5efe18a11f94150fee8b3fda9d62079af640a
771089c2a485958e423f305e974303760167b45c (git) before e3862093ee93fcfbdadcb7957f5f8974fffa806a
5.10
Any version before 5.10
5.10.224 (semver)
5.15.165 (semver)
6.1.105 (semver)
6.6.46 (semver)
6.10.5 (semver)
6.11 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/01/msg00001.html
lists.debian.org/debian-lts-announce/2024/10/msg00003.html
git.kernel.org/...c/b7b8d9f5e679af60c94251fd6728dde34be69a71
git.kernel.org/...c/c05516c072903f6fb9134b8e7e1ad4bffcdc4819
git.kernel.org/...c/7feef10768ea71d468d9bbc1e0d14c461876768c
git.kernel.org/...c/a7d2808d67570e6acae45c2a96e0d59986888e4c
git.kernel.org/...c/f3d5efe18a11f94150fee8b3fda9d62079af640a
git.kernel.org/...c/e3862093ee93fcfbdadcb7957f5f8974fffa806a
