CVE-2026-97574

bnxt_en: Don't free the live ring's TPA state on queue restart failure

N/A
Published: September 25, 2026 at 10:21 AM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Don't free the live ring's TPA state on queue restart failure bnxt_queue_mem_alloc() shallow copies the live RX ring into the clone: memcpy(clone, rxr, sizeof(*rxr)); the code currently clears pointers that the clone owns (such as rx_agg_bmap), but rx_tpa and rx_tpa_idx_map are left pointing at memory of the live ring that was cloned. If an allocation failure happens later and the err_free_tpa_info label is taken, the live ring's memory can be freed while still in use. Fix this by initializing the clone's pointers to NULL to prevent live ring state from being freed inadvertently.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0997443906b96a051011f220a61e6dce4602ec546.12.206.13997443906b96a51011f220a61e6dce4602ec54bd649c5cc958169b8a8a3e77ea926d92d472b02a
Vendor states this is fixed in 0596a7caa6fc283e142716739099c038d8714082 (fixed)
Vendor states this is fixed in 5ce7f36c334d723954855ac769ede2fe0e8f89c8 (fixed)
Vendor states this is fixed in 8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 (fixed)
Vendor states this is fixed in e42287b4d38d653f7d4a47f6c29b0c01288bb050 (fixed)
Vendor states this is fixed in 6.12.112 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.18.53 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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