Ubuntu.comUB:CVE-2024-44971CVE-2024-44971
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 14.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 20.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
| ubuntu | 24.04 | noarch | linux-aws | < any | UNKNOWN |
References
git.kernel.org/linus/e3862093ee93fcfbdadcb7957f5f8974fffa806a (6.11-rc3)
git.kernel.org/stable/c/7feef10768ea71d468d9bbc1e0d14c461876768c
git.kernel.org/stable/c/a7d2808d67570e6acae45c2a96e0d59986888e4c
git.kernel.org/stable/c/b7b8d9f5e679af60c94251fd6728dde34be69a71
git.kernel.org/stable/c/c05516c072903f6fb9134b8e7e1ad4bffcdc4819
git.kernel.org/stable/c/e3862093ee93fcfbdadcb7957f5f8974fffa806a
git.kernel.org/stable/c/f3d5efe18a11f94150fee8b3fda9d62079af640a
launchpad.net/bugs/cve/CVE-2024-44971
nvd.nist.gov/vuln/detail/CVE-2024-44971
security-tracker.debian.org/tracker/CVE-2024-44971
www.cve.org/CVERecord?id=CVE-2024-44971
Related
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
AI Score
Confidence
High