CVE-2026-97574— bnxt_en: Don't free the live ring's TPA state on queue restart failure
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Linux 内核中，已修复以下漏洞： bnxt_en：在队列重启失败时，不要释放活跃队列的 TPA 状态 函数将活跃的接收（RX）队列浅拷贝到克隆队列中： 当前代码会清零克隆队列所拥有的指针（例如 ），但 和 仍指向被克隆的活跃队列中的内存。 如果在后续分配过程中发生分配失败，并跳转到 标签执行，那么活跃队列正在使用的内存可能会被意外释放。 修复方法是将克隆队列的指针初始化为 NULL，从而避免意外释放活跃队列的状态。
Possible ATT&CK Techniques 1 AI
T1564.004 · NTFS File AttributesAffected Version Matrix 11
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 0997443906b96a051011f220a61e6dce4602ec54< e42287b4d38d653f7d4a47f6c29b0c01288bb050 |
affected |
bd649c5cc958169b8a8a3e77ea926d92d472b02a< 8ade95619cbfd1fc57f0f1a9a5ebdca2345a8d27 |
affected | ||
bd649c5cc958169b8a8a3e77ea926d92d472b02a< 0596a7caa6fc283e142716739099c038d8714082 |
affected | ||
bd649c5cc958169b8a8a3e77ea926d92d472b02a< 5ce7f36c334d723954855ac769ede2fe0e8f89c8 |
affected | ||
6.12.20< 6.12.112 |
affected | ||
6.13 |
affected | ||
< 6.13 |
unaffected | ||
6.12.112≤ 6.12.* |
unaffected | ||
| … +3 more rows | |||
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I. Basic Information for CVE-2026-97574
Vulnerability Information
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Vulnerability Title
bnxt_en: Don't free the live ring's TPA state on queue restart failure
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-97574
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-97574 (4)
Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total
| CVE-2026-100075 | 9.8 CRITICAL | RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters |
| CVE-2026-97957 | 8.8 HIGH | net: hinic: fix mailbox segment buffer overflow |
| CVE-2026-97527 | 8.8 HIGH | scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock |
| CVE-2026-97528 | 8.8 HIGH | scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error |
| CVE-2026-97555 | 8.8 HIGH | smb: client: fix heap overflow in DACL owner/group rewrite |
| CVE-2026-98115 | 8.8 HIGH | ksmbd: safely drain sessions during logoff |
| CVE-2026-97525 | 8.2 HIGH | x86/mm/pat: Allocate split page tables as kernel page tables |
| CVE-2026-97573 | 8.1 HIGH | bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset() |
| CVE-2026-97570 | 8.1 HIGH | bnxt_en: Bound SW TPA IDs to prevent crashes |
| CVE-2026-98070 | 8.1 HIGH | net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks() |
| CVE-2026-98069 | 8.1 HIGH | net/rds: acquire the fastpath locks in rds_conn_shutdown() |
| CVE-2026-98130 | 8.1 HIGH | sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START |
| CVE-2026-98116 | 7.8 HIGH | ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF |
| CVE-2026-97903 | 7.8 HIGH | exit: hold a reference to thread_pid across proc_flush_pid |
| CVE-2026-97548 | 7.8 HIGH | xfs: fix the rtrmap and rtrefcount _maxlevels_ondisk functions |
| CVE-2026-97611 | 7.8 HIGH | net: openvswitch: fix use-after-free of the flow table mask array |
| CVE-2026-97612 | 7.8 HIGH | net: mpls: clear inner_protocol when the last label is popped |
| CVE-2026-98073 | 7.8 HIGH | net: Remove conflicting altnames for dying netns in __dev_change_net_namespace(). |
| CVE-2026-97602 | 7.8 HIGH | inet: frags: invalidate queues before flushing them |
| CVE-2026-97577 | 7.8 HIGH | media: verisilicon: rockchip: reject AV1 frames exceeding the tile capacity |
Showing top 20 of 372 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
CVE-2026-98382
bpf: Reject dev-bound-only programs on other devices -
CVE-2026-98381
veth: manage XDP program pointers during channel resize -
CVE-2026-98380
net/sched: reject IDR error pointers when deleting actions
V. Comments for CVE-2026-97574
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