CVE-2026-72058net: ixp4xx_hss: fix duplicate HDLC netdev allocation
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 8 days later
· 8 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < 77d925b948ee594a79afe66f85bb94b67940140b
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < 8f4c3c384092becbf4835a3f8ed8a3df1f544578
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < fd0b939ebd1eee29945a539c5ed65c35dddac8d6
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < ffba16e6f55948d94b7f16aa113d587c1c4c0643
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < 3f85fcd520aa703824b1958f35169925ddae2558
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < 91850f582783098415a334f8bd0a84c87ff15a8c
- affected 99ebe65eb9c0ada015931d239d9f2d1dc8897fee – < db818b0e8af7bac16860116a19c341a63d6677b4
- affected 5.14
- unaffected < 5.14
- unaffected 5.15.217 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References7
- https://git.kernel.org/stable/c/77d925b948ee594a79afe66f85bb94b67940140b (opens in a new tab)
- https://git.kernel.org/stable/c/8f4c3c384092becbf4835a3f8ed8a3df1f544578 (opens in a new tab)
- https://git.kernel.org/stable/c/fd0b939ebd1eee29945a539c5ed65c35dddac8d6 (opens in a new tab)
- https://git.kernel.org/stable/c/ffba16e6f55948d94b7f16aa113d587c1c4c0643 (opens in a new tab)
- https://git.kernel.org/stable/c/3f85fcd520aa703824b1958f35169925ddae2558 (opens in a new tab)
- https://git.kernel.org/stable/c/91850f582783098415a334f8bd0a84c87ff15a8c (opens in a new tab)
- https://git.kernel.org/stable/c/db818b0e8af7bac16860116a19c341a63d6677b4 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59016 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72058)Record last updated .