CVE-2026-72056

net: ena: clean up XDP TX queues when regular TX setup fails

State: Published
Severity: Not scored
Published: Aug 15, 2026
Updated: Aug 17, 2026
Reserved: Aug 9, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	548c4940b9f1f527f81509468dd60b61418880b6 to before df65d9fea8437235e740552e542fb309765507dbAffected 548c4940b9f1f527f81509468dd60b61418880b6 to before 5daa63404b708fc74e94da8398affbb148d09044Affected 548c4940b9f1f527f81509468dd60b61418880b6 to before 523caef03124ecc08ce62a78c617759c2d28cf1cAffected 548c4940b9f1f527f81509468dd60b61418880b6 to before f2ff634d95f8a6c885b9ce71a64067e255bcc34aAffected 548c4940b9f1f527f81509468dd60b61418880b6 to before 6773d6d82bdabddab2b31605d6d7029c91dbd217Affected 548c4940b9f1f527f81509468dd60b61418880b6 to before 6596baf8041100a9d1647beb5ea8ea4496ce058fAffected 548c4940b9f1f527f81509468dd60b61418880b6 to before 11f68ebc6891d11de5f32b7dee918c5dc18b8de1Affected 548c4940b9f1f527f81509468dd60b61418880b6 to before 1bd6676254b4ab6acd44b662b5e92822c036463aAffected
LinuxLinux	5.6Affected before 5.6Not affected 5.10.261 through 5.10.Not affected 5.15.212 through 5.15.Not affected 6.1.178 through 6.1.Not affected 6.6.145 through 6.6.Not affected 6.12.97 through 6.12.Not affected 6.18.40 through 6.18.Not affected 7.1.5 through 7.1.*Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

548c4940b9f1f527f81509468dd60b61418880b6 to before df65d9fea8437235e740552e542fb309765507dbAffected
548c4940b9f1f527f81509468dd60b61418880b6 to before 5daa63404b708fc74e94da8398affbb148d09044Affected
548c4940b9f1f527f81509468dd60b61418880b6 to before 523caef03124ecc08ce62a78c617759c2d28cf1cAffected
548c4940b9f1f527f81509468dd60b61418880b6 to before f2ff634d95f8a6c885b9ce71a64067e255bcc34aAffected
548c4940b9f1f527f81509468dd60b61418880b6 to before 6773d6d82bdabddab2b31605d6d7029c91dbd217Affected
548c4940b9f1f527f81509468dd60b61418880b6 to before 6596baf8041100a9d1647beb5ea8ea4496ce058fAffected
548c4940b9f1f527f81509468dd60b61418880b6 to before 11f68ebc6891d11de5f32b7dee918c5dc18b8de1Affected
548c4940b9f1f527f81509468dd60b61418880b6 to before 1bd6676254b4ab6acd44b662b5e92822c036463aAffected

LinuxLinux

5.6Affected
before 5.6Not affected
5.10.261 through 5.10.*Not affected
5.15.212 through 5.15.*Not affected
6.1.178 through 6.1.*Not affected
6.6.145 through 6.6.*Not affected
6.12.97 through 6.12.*Not affected
6.18.40 through 6.18.*Not affected
7.1.5 through 7.1.*Not affected
7.2 and laterNot affected

References

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