CVE-2026-72056

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Source
https://cve.org/CVERecord?id=CVE-2026-72056
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72056.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-72056
Downstream
Published
2026-08-15T05:52:12.136Z
Modified
2026-08-18T03:30:50.045434064Z
Summary
net: ena: clean up XDP TX queues when regular TX setup fails
Details

In the Linux kernel, the following vulnerability has been resolved:

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

createqueueswithsizebackoff() 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72056.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
548c4940b9f1f527f81509468dd60b61418880b6
Fixed
df65d9fea8437235e740552e542fb309765507db
Fixed
5daa63404b708fc74e94da8398affbb148d09044
Fixed
523caef03124ecc08ce62a78c617759c2d28cf1c
Fixed
f2ff634d95f8a6c885b9ce71a64067e255bcc34a
Fixed
6773d6d82bdabddab2b31605d6d7029c91dbd217
Fixed
6596baf8041100a9d1647beb5ea8ea4496ce058f
Fixed
11f68ebc6891d11de5f32b7dee918c5dc18b8de1
Fixed
1bd6676254b4ab6acd44b662b5e92822c036463a

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72056.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.6.0
Fixed
5.10.261
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.212
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.178
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.145
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.97
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.40
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72056.json"