CVE-2026-72056net: ena: clean up XDP TX queues when regular TX setup fails
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: 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.
- 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 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 548c4940b9f1f527f81509468dd60b61418880b6 before df65d9fea8437235e740552e542fb309765507db; 548c4940b9f1f527f81509468dd60b61418880b6 builds before 5daa63404b708fc74e94da8398affbb148d09044; 548c4940b9f1f527f81509468dd60b61418880b6 builds before 523caef03124ecc08ce62a78c617759c2d28cf1c; from 548c4940b9f1f527f81509468dd60b61418880b6 before f2ff634d95f8a6c885b9ce71a64067e255bcc34a; from 548c4940b9f1f527f81509468dd60b61418880b6 before 6773d6d82bdabddab2b31605d6d7029c91dbd217; from 548c4940b9f1f527f81509468dd60b61418880b6 before 6596baf8041100a9d1647beb5ea8ea4496ce058f; 548c4940b9f1f527f81509468dd60b61418880b6 builds before 11f68ebc6891d11de5f32b7dee918c5dc18b8de1; 548c4940b9f1f527f81509468dd60b61418880b6 builds before 1bd6676254b4ab6acd44b662b5e92822c036463a | CNA record |
References
- https://git.kernel.org/stable/c/df65d9fea8437235e740552e542fb309765507db
- https://git.kernel.org/stable/c/5daa63404b708fc74e94da8398affbb148d09044
- https://git.kernel.org/stable/c/523caef03124ecc08ce62a78c617759c2d28cf1c
- https://git.kernel.org/stable/c/f2ff634d95f8a6c885b9ce71a64067e255bcc34a
- https://git.kernel.org/stable/c/6773d6d82bdabddab2b31605d6d7029c91dbd217
- https://git.kernel.org/stable/c/6596baf8041100a9d1647beb5ea8ea4496ce058f
- https://git.kernel.org/stable/c/11f68ebc6891d11de5f32b7dee918c5dc18b8de1
- https://git.kernel.org/stable/c/1bd6676254b4ab6acd44b662b5e92822c036463a
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.