CVE-2026-97972net: macb: put the "mdio" child node reference on success
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: net: macb: put the "mdio" child node reference on success macb_mii_init() holds the reference returned by of_get_child_by_name() for macb_mdiobus_register() and drops it only on the error paths, so every successful probe leaks a node reference. On a CM5, overlay removal after four bind cycles reports OF: ERROR: memory leak, expected refcount 1 instead of 5 Drop the reference after registration, where __mdiobus_register() has already taken its own for the lifetime of the bus.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 8a6631f1cece09047fa44608d21d520ca65ce7d8 builds before 5fba30080d298edb742396073372385c961578d3; 8a6631f1cece09047fa44608d21d520ca65ce7d8 builds before 7d60dc7ff85b73a2119d582ca2d4456b30960380; from 8a6631f1cece09047fa44608d21d520ca65ce7d8 before 382a373d9ea7a6ac4de9c022385b6217f65ae3cc | CNA record |
References
- https://git.kernel.org/stable/c/5fba30080d298edb742396073372385c961578d3
- https://git.kernel.org/stable/c/7d60dc7ff85b73a2119d582ca2d4456b30960380
- https://git.kernel.org/stable/c/382a373d9ea7a6ac4de9c022385b6217f65ae3cc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.