Low [CVE-2026-53087] fix leaking free_bds
This low-severity Red Hat Linux advisory covers CVE-2026-53087.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix leaking free_bds While reclaiming the tx queue we fast forward the write pointer to drop any data in flight. These dropped frames are not added back to the pool of free bds.
We also need to tell the netdev that we are dropping said data. A flaw was found in the Linux kernel's bcmgenet network driver.
When the transmit (tx) queue is reclaimed, the driver incorrectly drops data frames without returning them to the pool of free buffer descriptors (bds). This oversight results in a resource leak, which can lead to resource exhaustion and potentially cause a denial of service (DoS) for network functionality.
Red Hat severity: Low. Weakness: CWE-772.
Red Hat lists Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
Is CVE-2026-53087 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-53087 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-53087?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
Mitigation
The source record does not include mitigation steps. That does not mean no fix exists. Read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 14 days ago·verify at source
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