Strix
57.3K

CVE-2026-72056

UnknownEPSS 0.22%

Last modified

CVE-2026-72056 is a vulnerability of currently unknown severity. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
0.22%

12.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 548c4940b9f1f527f81509468dd60b61418880b6, < df65d9fea8437235e740552e542fb309765507db; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 5daa63404b708fc74e94da8398affbb148d09044; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 523caef03124ecc08ce62a78c617759c2d28cf1c; >= 548c4940b9f1f527f81509468dd60b61418880b6, < f2ff634d95f8a6c885b9ce71a64067e255bcc34a; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 6773d6d82bdabddab2b31605d6d7029c91dbd217; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 6596baf8041100a9d1647beb5ea8ea4496ce058f; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 11f68ebc6891d11de5f32b7dee918c5dc18b8de1; >= 548c4940b9f1f527f81509468dd60b61418880b6, < 1bd6676254b4ab6acd44b662b5e92822c036463a
LinuxLinux5.6

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-72056?
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.
How severe is CVE-2026-72056?
Severity scoring for CVE-2026-72056 is pending analysis. The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2026-72056?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

Related CVEs from 2026

View all 2026CVEs →

Are you affected by CVE-2026-72056?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST