net: ena: clean up XDP TX queues when regular TX setup fails
Summary
| CVE | CVE-2026-72056 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 06:21:15 UTC |
| Updated | 2026-08-17 06:18:03 UTC |
| 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. |
Risk And Classification
EPSS: 0.002200000 probability, percentile 0.127030000 (date 2026-08-17)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 df65d9fea8437235e740552e542fb309765507db git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 5daa63404b708fc74e94da8398affbb148d09044 git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 523caef03124ecc08ce62a78c617759c2d28cf1c git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 f2ff634d95f8a6c885b9ce71a64067e255bcc34a git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 6773d6d82bdabddab2b31605d6d7029c91dbd217 git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 6596baf8041100a9d1647beb5ea8ea4496ce058f git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 11f68ebc6891d11de5f32b7dee918c5dc18b8de1 git | Not specified |
| CNA | Linux | Linux | affected 548c4940b9f1f527f81509468dd60b61418880b6 1bd6676254b4ab6acd44b662b5e92822c036463a git | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.261 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.212 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.178 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.145 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.97 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.40 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.5 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/6773d6d82bdabddab2b31605d6d7029c91dbd217 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/11f68ebc6891d11de5f32b7dee918c5dc18b8de1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/523caef03124ecc08ce62a78c617759c2d28cf1c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6596baf8041100a9d1647beb5ea8ea4496ce058f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/5daa63404b708fc74e94da8398affbb148d09044 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f2ff634d95f8a6c885b9ce71a64067e255bcc34a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/1bd6676254b4ab6acd44b662b5e92822c036463a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/df65d9fea8437235e740552e542fb309765507db | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.