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CVE-2026-98051— net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times

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，以下漏洞已得到修复： net: bcmasp: 修复 tx_spb_ring_full() 中同一槽位被重复检查 cnt 次的问题 该函数在每次循环迭代中都将 next_index 初始化为 intf->tx_spb_index，导致 incr_ring() 始终返回相同的结果，实际上只检查了一个槽位。现将初始化操作移至循环之前，使得每次迭代都能推进 next_index，从而确保函数在允许新传输之前，正确检查连续 cnt 个描述符槽位是否可用。

AI Predicted 5.5 Difficulty: Hard EPSS 0.12% · P2

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 490cb412007de593e07c1d3e2b1ec4233886707c< 990df1ba4d0805d1e7f6148c364febd2ab618766 affected
490cb412007de593e07c1d3e2b1ec4233886707c< f7f7a16dd46ace4e221336a184c7806f7de19547 affected
490cb412007de593e07c1d3e2b1ec4233886707c< a8bddab54aa68b407f12294acb05bd552fb6a492 affected
490cb412007de593e07c1d3e2b1ec4233886707c< 5df7ecd302488287665ab9767bacba7ed7e2842f affected
490cb412007de593e07c1d3e2b1ec4233886707c< 0c5cf62e72d7a666ee4da757e122dc1600df1ecc affected
6.6 affected
< 6.6 unaffected
6.6.158≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-98051

Vulnerability Information
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Vulnerability Title
net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times The loop initialised next_index from intf->tx_spb_index on every iteration, so incr_ring() always produced the same result and only one slot was ever tested. Move the initialisation before the loop so each iteration advances next_index and the function correctly checks that cnt consecutive descriptor slots are available before allowing a new transmission.
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 490cb412007de593e07c1d3e2b1ec4233886707c ~ 990df1ba4d0805d1e7f6148c364febd2ab618766 -
Linux Linux 6.6 -

II. Public POCs for CVE-2026-98051

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III. Intelligence Information for CVE-2026-98051

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Patches & Fixes for CVE-2026-98051 (5)

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-2026-97555 8.8 HIGH smb: client: fix heap overflow in DACL owner/group rewrite
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-2026-98115 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-2026-98069 8.1 HIGH net/rds: acquire the fastpath locks in rds_conn_shutdown()
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-2026-98130 8.1 HIGH sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START
CVE-2026-98070 8.1 HIGH net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks()
CVE-2026-98002 7.8 HIGH iommu/amd: Fix ineffective error check in nested domain allocation
CVE-2026-97575 7.8 HIGH media: v4l2-ctrls: validate AV1 tile counts
CVE-2026-97576 7.8 HIGH media: v4l2-ctrls: validate HEVC tile counts
CVE-2026-97941 7.8 HIGH mm/slab: take n->list_lock in __slab_try_return_freelist() to avoid race
CVE-2026-98112 7.8 HIGH ksmbd: fix listener task lifetime on netdev events
CVE-2026-97937 7.8 HIGH ftrace: fork: Initialize function graph state before copy_exec_state()
CVE-2026-97580 7.8 HIGH media: rkvdec: bound HEVC tile loops and PPS id to the array capacity
CVE-2026-97940 7.8 HIGH ipv6: fix fib6 walker UAF on seq stop

Showing top 20 of 372 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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