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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-53231

net: phy: don't try to setup PHY-driven SFP cages when using genphy

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: net: phy: don't try to setup PHY-driven SFP cages when using genphy We don't have support for PHY-driver SFP cages with the genphy code. On top of that, it was found by sashiko that running sfp_bus_add_upstream() for genphy deadlocks, as for genphy the PHY probing runs under RTNL, which isn't the case for non-genphy drivers. This problem was reproduced, and does lead to a deadlock on RTNL. Before the blamed commit, the phy_sfp_probe() call was made by individual PHY drivers, so there was no way to get to the SFP probing path when using genphy. Let's therefore only run phy_sfp_probe when not using genphy.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • bad869b5e41a08424ff130fd6bb41b854be70095 to < ef8d739eee6f85303cbecebc01eb72f063de74e0affected
  • bad869b5e41a08424ff130fd6bb41b854be70095 to < 5a0082ec20a05ef2378410323a5089a8f1786f4aaffected

Linux Linux

Default version status: affected

  • 7.0affected
  • 0 to < 7.0unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References