net: ena: clean up XDP TX queues when regular TX setup fails
Published Aug 15, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.22%
Description
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.
Affected products
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- Version StatusaffectedConstraints
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- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
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- Version
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- Version 5.6StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<5.6
- Version 5.10.261StatusunaffectedConstraints<=5.10.*
- Version 5.15.212StatusunaffectedConstraints<=5.15.*
- Version 6.1.178StatusunaffectedConstraints<=6.1.*
- Version 6.12.97StatusunaffectedConstraints<=6.12.*
- Version 6.18.40StatusunaffectedConstraints<=6.18.*
- Version 6.6.145StatusunaffectedConstraints<=6.6.*
- Version 7.1.5StatusunaffectedConstraints<=7.1.*
- Version 7.2StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Linux | Linux | unaffected |
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| Linux | Linux | affected |
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No data.
No data.
Red Hat Enterprise Linux 10
kernel
Fix deferred
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Fix deferred
Red Hat Enterprise Linux 8
kernel-rt
Fix deferred
Red Hat Enterprise Linux 9
kernel
Fix deferred
Red Hat Enterprise Linux 9
kernel-rt
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (14)
- https://access.redhat.com/security/cve/CVE-2026-72056 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2516267 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-59014 Advisory
- https://git.kernel.org/stable/c/11f68ebc6891d11de5f32b7dee918c5dc18b8de1
- https://git.kernel.org/stable/c/1bd6676254b4ab6acd44b662b5e92822c036463a
- https://git.kernel.org/stable/c/523caef03124ecc08ce62a78c617759c2d28cf1c
- https://git.kernel.org/stable/c/5daa63404b708fc74e94da8398affbb148d09044
- https://git.kernel.org/stable/c/6596baf8041100a9d1647beb5ea8ea4496ce058f
- https://git.kernel.org/stable/c/6773d6d82bdabddab2b31605d6d7029c91dbd217
- https://git.kernel.org/stable/c/df65d9fea8437235e740552e542fb309765507db
- https://git.kernel.org/stable/c/f2ff634d95f8a6c885b9ce71a64067e255bcc34a
- https://lore.kernel.org/linux-cve-announce/2026081516-CVE-2026-72056-b761@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-72056
- https://www.cve.org/CVERecord?id=CVE-2026-72056
Change history (0)
No recorded changes yet.