CVE-2026-72058net: ixp4xx_hss: fix duplicate HDLC netdev allocation
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: net: ixp4xx_hss: fix duplicate HDLC netdev allocation ixp4xx_hss_probe() allocates two HDLC netdevs. The first one is stored in ndev, initialized, and registered with register_hdlc_device(). The second one is stored in port->netdev and later used by the remove path for unregister_hdlc_device() and free_netdev(). This means that the registered netdev is not the same object that is unregistered and freed on remove. It also leaks the first allocation if the second alloc_hdlcdev() call fails, and the first allocation is not checked before ndev is used. Older code allocated the HDLC netdev only once and stored the same object in both the local variable and port->netdev. The buggy conversion split this into two alloc_hdlcdev() calls. A later rename changed the local variable name to ndev, but the underlying mismatch remained. Fix this by allocating the HDLC netdev only once and assigning the same object to port->netdev.
- 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
- Aug 23, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 99ebe65eb9c0ada015931d239d9f2d1dc8897fee builds before 77d925b948ee594a79afe66f85bb94b67940140b; 99ebe65eb9c0ada015931d239d9f2d1dc8897fee builds before 8f4c3c384092becbf4835a3f8ed8a3df1f544578; from 99ebe65eb9c0ada015931d239d9f2d1dc8897fee before fd0b939ebd1eee29945a539c5ed65c35dddac8d6; from 99ebe65eb9c0ada015931d239d9f2d1dc8897fee before ffba16e6f55948d94b7f16aa113d587c1c4c0643; 99ebe65eb9c0ada015931d239d9f2d1dc8897fee builds before 3f85fcd520aa703824b1958f35169925ddae2558; from 99ebe65eb9c0ada015931d239d9f2d1dc8897fee before 91850f582783098415a334f8bd0a84c87ff15a8c; from 99ebe65eb9c0ada015931d239d9f2d1dc8897fee before db818b0e8af7bac16860116a19c341a63d6677b4 | CNA record |
References
- https://git.kernel.org/stable/c/77d925b948ee594a79afe66f85bb94b67940140b
- https://git.kernel.org/stable/c/8f4c3c384092becbf4835a3f8ed8a3df1f544578
- https://git.kernel.org/stable/c/fd0b939ebd1eee29945a539c5ed65c35dddac8d6
- https://git.kernel.org/stable/c/ffba16e6f55948d94b7f16aa113d587c1c4c0643
- https://git.kernel.org/stable/c/3f85fcd520aa703824b1958f35169925ddae2558
- https://git.kernel.org/stable/c/91850f582783098415a334f8bd0a84c87ff15a8c
- https://git.kernel.org/stable/c/db818b0e8af7bac16860116a19c341a63d6677b4
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.