PT-2024-14746 · Linux+7 · Linux Kernel+7
Syzbot
·
Published
2023-11-13
·
Updated
2025-09-29
·
CVE-2023-52784
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.0-rc3-syzkaller-gbf6547d8715b
Description
The issue arises when a lapbether device is created on a bonding device without members, and then a non-ARPHRD ETHER member is added, forcing the bonding master to change its type. This can lead to a kernel BUG due to an internal error. The fix involves calling dev close() in bond setup by slave() to remove potential linked lapbether devices. A similar bug was addressed in a previous commit.
Recommendations
To resolve the issue, update the Linux kernel to a version that includes the fix, specifically to a version after 6.6.0-rc3-syzkaller-gbf6547d8715b. As a temporary workaround, consider disabling the lapbether device on bonding devices without members to prevent the bonding master from changing its type.
Exploit
Fix
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Almalinux
Astra Linux
Centos
Linux Kernel
Red Hat
Red Os
Rocky Linux
Suse