CVE-2026-53232
Published: June 27, 2026Last modified: July 16, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: net: phy: clean the sfp upstream if phy probing fails Sashiko reported that we don't call sfp_bus_del_upstream() in the probe failure path, so let's add it, otherwise the sfp-bus is left with a dangling 'upstream' field, that may be used later on during SFP events. This issue existed before the generic phylib sfp support, back when drivers were calling phy_sfp_probe themselves.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.8 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Vulnerable (6.1.175-r0) |
| 25 LTS | linux-lts | Fixed (6.12.95-r0) | |
| Stream | linux-lts | Fixed (6.18.38-r0) |
References
- https://git.kernel.org/stable/c/0b27701ce93161d7bbf4b25fa20ca59963b0e20c
- https://git.kernel.org/stable/c/12fb84dc4dc8eb47ebe2b27f7de6255a4a205e1b
- https://git.kernel.org/stable/c/3a254779c169954fe23328a1db51f67be374f913
- https://git.kernel.org/stable/c/48774e87bbaa0056819d4b52301e4692e50e3252
- https://git.kernel.org/stable/c/9326b654f90a09eadeb796c82801a5609d57f0c8