vulnerability
Red Hat: CVE-2019-12819: CVE-2019-12819 kernel: use-after-free in function __mdiobus_register() in drivers/net/phy/mdio_bus.c (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:N/C:N/I:N/A:P) | Jun 14, 2019 | Oct 30, 2020 | Jul 9, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:P)
Published
Jun 14, 2019
Added
Oct 30, 2020
Modified
Jul 9, 2025
Description
An issue was discovered in the Linux kernel before 5.0. The function __mdiobus_register() in drivers/net/phy/mdio_bus.c calls put_device(), which will trigger a fixed_mdio_bus_init use-after-free. This will cause a denial of service.
Solution(s)
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
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