0.0
NA
CVE-2026-72056
net: ena: clean up XDP TX queues when regular TX setup fails
Overview
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.
Details
INFO
Published Date :
Aug. 15, 2026, 6:21 a.m.
Last Modified :
Aug. 17, 2026, 6:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Fix resource leaks by destroying XDP TX queues on regular TX setup failure.
- Destroy XDP TX queues on regular TX setup failure.
- Apply the fix to the Linux kernel.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-72056.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-72056 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-72056
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-72056 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-72056 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'df65d9fea8437235e740552e542fb309765507db', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '5daa63404b708fc74e94da8398affbb148d09044', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '523caef03124ecc08ce62a78c617759c2d28cf1c', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'f2ff634d95f8a6c885b9ce71a64067e255bcc34a', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6773d6d82bdabddab2b31605d6d7029c91dbd217', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6596baf8041100a9d1647beb5ea8ea4496ce058f', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '11f68ebc6891d11de5f32b7dee918c5dc18b8de1', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '1bd6676254b4ab6acd44b662b5e92822c036463a', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.6'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.6', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'df65d9fea8437235e740552e542fb309765507db', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '5daa63404b708fc74e94da8398affbb148d09044', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '523caef03124ecc08ce62a78c617759c2d28cf1c', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'f2ff634d95f8a6c885b9ce71a64067e255bcc34a', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6773d6d82bdabddab2b31605d6d7029c91dbd217', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6596baf8041100a9d1647beb5ea8ea4496ce058f', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '11f68ebc6891d11de5f32b7dee918c5dc18b8de1', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '1bd6676254b4ab6acd44b662b5e92822c036463a', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.6'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.6', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 15, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'df65d9fea8437235e740552e542fb309765507db', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '5daa63404b708fc74e94da8398affbb148d09044', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '523caef03124ecc08ce62a78c617759c2d28cf1c', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': 'f2ff634d95f8a6c885b9ce71a64067e255bcc34a', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6773d6d82bdabddab2b31605d6d7029c91dbd217', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '6596baf8041100a9d1647beb5ea8ea4496ce058f', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '11f68ebc6891d11de5f32b7dee918c5dc18b8de1', 'versionType': 'git'}, {'status': 'affected', 'version': '548c4940b9f1f527f81509468dd60b61418880b6', 'lessThan': '1bd6676254b4ab6acd44b662b5e92822c036463a', 'versionType': 'git'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.6'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.6', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.261', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.212', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.178', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.145', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.97', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.40', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.5', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amazon/ena/ena_netdev.c'], 'defaultStatus': 'affected'}] Added 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. Added Reference https://git.kernel.org/stable/c/11f68ebc6891d11de5f32b7dee918c5dc18b8de1 Added Reference https://git.kernel.org/stable/c/1bd6676254b4ab6acd44b662b5e92822c036463a Added Reference https://git.kernel.org/stable/c/523caef03124ecc08ce62a78c617759c2d28cf1c Added Reference https://git.kernel.org/stable/c/5daa63404b708fc74e94da8398affbb148d09044 Added Reference https://git.kernel.org/stable/c/6596baf8041100a9d1647beb5ea8ea4496ce058f Added Reference https://git.kernel.org/stable/c/6773d6d82bdabddab2b31605d6d7029c91dbd217 Added Reference https://git.kernel.org/stable/c/df65d9fea8437235e740552e542fb309765507db Added Reference https://git.kernel.org/stable/c/f2ff634d95f8a6c885b9ce71a64067e255bcc34a
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.