CVE-2026-97571
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Propagate TPA buffer allocation failures in bnxt_queue_mem_alloc() bnxt_alloc_one_tpa_info_data() returns -ENOMEM as soon as one allocation fails. This leaves the remaining rxr->rx_tpa[] entries zeroed. bnxt_queue_mem_alloc() discards that return value, so the partially initialized ring is installed by bnxt_queue_start(). Since the agg_id is picked by the hardware and bnxt_alloc_agg_idx maps it to a SW index in rxr->rx_tpa[], it is possible that an uninitialized slot can be chosen which would hand a zero DMA address to the device. Fix this by checking the return value of bnxt_alloc_one_tpa_info_data and unwinding, freeing the ring buffers.
Affected versions
Linux kernel versions
6.12.20,
6.13
and later are affected. Fixed in
6.12.112,
6.18.53,
7.2.7,
7.3-rc3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-97571?
CVE-2026-97571 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.12.20 onward and has been patched in 6.12.112, 6.18.53, 7.2.7 and others. CVE-2026-97571 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-97571?
Yes. CVE-2026-97571 has been patched. Fixed versions include 6.12.112, 6.18.53, 7.2.7 and others. If you are running Linux kernel 6.12.20 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-97571 actively exploited?
No. CVE-2026-97571 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.