CVE-2024-50188

net: phy: dp83869: fix memory corruption when enabling fiber

State: Published
Severity: 7.8 High
Published: Nov 8, 2024
Updated: Oct 15, 2026
Reserved: Oct 21, 2024

Description

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

net: phy: dp83869: fix memory corruption when enabling fiber

When configuring the fiber port, the DP83869 PHY driver incorrectly calls linkmode_set_bit() with a bit mask (1 << 10) rather than a bit number (10). This corrupts some other memory location -- in case of arm64 the priv pointer in the same structure.

Since the advertising flags are updated from supported at the end of the function the incorrect line isn't needed at all and can be removed.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	a29de52ba2a156873505d8b8cef44e69925b8114 to before 21b5af7f0c99b3bf1fd02016e6708b613acbcaf4Affected a29de52ba2a156873505d8b8cef44e69925b8114 to before ad0d76b8ee5db063791cc2e7a30ffc9852ac37c4Affected a29de52ba2a156873505d8b8cef44e69925b8114 to before c1944b4253649fc6f2fb53e7d6302eb414d2182cAffected a29de52ba2a156873505d8b8cef44e69925b8114 to before 9ca634676ff66e1d616259e136f96f96b2a1759aAffected a29de52ba2a156873505d8b8cef44e69925b8114 to before e3f2de32dae35bc7d173377dc97b5bc9fcd9fc84Affected a29de52ba2a156873505d8b8cef44e69925b8114 to before a842e443ca8184f2dc82ab307b43a8b38defd6a5Affected
LinuxLinux	5.10Affected before 5.10Not affected 5.10.227 through 5.10.Not affected 5.15.168 through 5.15.Not affected 6.1.113 through 6.1.Not affected 6.6.57 through 6.6.Not affected 6.11.4 through 6.11.*Not affected 6.12 and laterNot affected

Product

Versions

LinuxLinux

a29de52ba2a156873505d8b8cef44e69925b8114 to before 21b5af7f0c99b3bf1fd02016e6708b613acbcaf4Affected
a29de52ba2a156873505d8b8cef44e69925b8114 to before ad0d76b8ee5db063791cc2e7a30ffc9852ac37c4Affected
a29de52ba2a156873505d8b8cef44e69925b8114 to before c1944b4253649fc6f2fb53e7d6302eb414d2182cAffected
a29de52ba2a156873505d8b8cef44e69925b8114 to before 9ca634676ff66e1d616259e136f96f96b2a1759aAffected
a29de52ba2a156873505d8b8cef44e69925b8114 to before e3f2de32dae35bc7d173377dc97b5bc9fcd9fc84Affected
a29de52ba2a156873505d8b8cef44e69925b8114 to before a842e443ca8184f2dc82ab307b43a8b38defd6a5Affected

LinuxLinux

5.10Affected
before 5.10Not affected
5.10.227 through 5.10.*Not affected
5.15.168 through 5.15.*Not affected
6.1.113 through 6.1.*Not affected
6.6.57 through 6.6.*Not affected
6.11.4 through 6.11.*Not affected
6.12 and laterNot affected

References

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