CVE-2026-72056net: ena: clean up XDP TX queues when regular TX setup fails
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: ena: clean up XDP TX queues when regular TX setup fails create_queues_with_size_backoff() creates XDP TX queues before setting up the regular TX path. If the subsequent allocation or creation of regular TX queues fails, the error handling paths omit the teardown of the XDP TX queues, leading to a resource leak. Fix this by explicitly destroying the XDP TX queue subset at the two missing failure points. The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc7. An x86_64 allyesconfig build showed no new warnings. As we do not have an ENA device to test with, no runtime testing was able to be performed.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 months 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)
- 0.22% · top 87% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < df65d9fea8437235e740552e542fb309765507db
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 5daa63404b708fc74e94da8398affbb148d09044
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 523caef03124ecc08ce62a78c617759c2d28cf1c
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < f2ff634d95f8a6c885b9ce71a64067e255bcc34a
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 6773d6d82bdabddab2b31605d6d7029c91dbd217
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 6596baf8041100a9d1647beb5ea8ea4496ce058f
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 11f68ebc6891d11de5f32b7dee918c5dc18b8de1
- affected 548c4940b9f1f527f81509468dd60b61418880b6 – < 1bd6676254b4ab6acd44b662b5e92822c036463a
- affected 5.6
- unaffected < 5.6
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 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
References8
- https://git.kernel.org/stable/c/df65d9fea8437235e740552e542fb309765507db (opens in a new tab)
- https://git.kernel.org/stable/c/5daa63404b708fc74e94da8398affbb148d09044 (opens in a new tab)
- https://git.kernel.org/stable/c/523caef03124ecc08ce62a78c617759c2d28cf1c (opens in a new tab)
- https://git.kernel.org/stable/c/f2ff634d95f8a6c885b9ce71a64067e255bcc34a (opens in a new tab)
- https://git.kernel.org/stable/c/6773d6d82bdabddab2b31605d6d7029c91dbd217 (opens in a new tab)
- https://git.kernel.org/stable/c/6596baf8041100a9d1647beb5ea8ea4496ce058f (opens in a new tab)
- https://git.kernel.org/stable/c/11f68ebc6891d11de5f32b7dee918c5dc18b8de1 (opens in a new tab)
- https://git.kernel.org/stable/c/1bd6676254b4ab6acd44b662b5e92822c036463a (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-2026-59014 (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-2026-72056)Record last updated .