CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: mv88e6xxx: Correct check for empty list
Since commit a3c53be55c95 (“net: dsa: mv88e6xxx: Support multiple MDIO
busses”) mv88e6xxx_default_mdio_bus() has checked that the
return value of list_first_entry() is non-NULL.
This appears to be intended to guard against the list chip->mdios being
empty. However, it is not the correct check as the implementation of
list_first_entry is not designed to return NULL for empty lists.
Instead, use list_first_entry_or_null() which does return NULL if the
list is empty.
Flagged by Smatch.
Compile tested only.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux | < 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 |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 24.04 | noarch | linux-azure | < any | UNKNOWN |
git.kernel.org/linus/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b (6.10-rc1)
git.kernel.org/stable/c/2a2fe25a103cef73cde356e6d09da10f607e93f5
git.kernel.org/stable/c/3bf8d70e1455f87856640c3433b3660a31001618
git.kernel.org/stable/c/3f25b5f1635449036692a44b771f39f772190c1d
git.kernel.org/stable/c/47d28dde172696031c880c5778633cdca30394ee
git.kernel.org/stable/c/4c7f3950a9fd53a62b156c0fe7c3a2c43b0ba19b
git.kernel.org/stable/c/8c2c3cca816d074c75a2801d1ca0dea7b0148114
git.kernel.org/stable/c/aa03f591ef31ba603a4a99d05d25a0f21ab1cd89
git.kernel.org/stable/c/f75625db838ade28f032dacd0f0c8baca42ecde4
launchpad.net/bugs/cve/CVE-2024-42224
nvd.nist.gov/vuln/detail/CVE-2024-42224
security-tracker.debian.org/tracker/CVE-2024-42224
www.cve.org/CVERecord?id=CVE-2024-42224