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CVE-2026-97435— net: dsa: sja1105: flower: reject cross-chip redirect

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： 网络子系统：DSA（分布式交换机架构）驱动 sja1105：flower 过滤器——拒绝跨芯片重定向 函数可能返回一个来自不同交换芯片的有效端口。若将该其他芯片的端口索引编程到本地硬件中，会导致数据被错误地重定向到其他端口；如果该索引值超过本地芯片的端口数量，还可能引发越界访问。 为此应用了一个最小化修复方案：增加检查以捕获此类情况，并调整扩展错误消息（extack message）。当 未设置时，操作本可重定向至上游端口，由软件或上游交换机处理转发，但此问题不在本次修复范

AI Predicted 7.8 Difficulty: Moderate EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux dfacc5a23e227cabdff41b6202f510398e90d36b< 6bf5158af52a5293e9160d8f2992c629ca14aa7d affected
dfacc5a23e227cabdff41b6202f510398e90d36b< 277f8611e017d3ff1ab06af58a6c538b55da1cc8 affected
dfacc5a23e227cabdff41b6202f510398e90d36b< eb177aa00c392de3dc530c34f173a962216f82dd affected
dfacc5a23e227cabdff41b6202f510398e90d36b< d0e54098c072b6064cdcf8039075ada8b88583da affected
dfacc5a23e227cabdff41b6202f510398e90d36b< c999cc39775381b68ed66eae57c1425452672c0f affected
dfacc5a23e227cabdff41b6202f510398e90d36b< abd7511e12b231798332afa04ed9bee9e84f9445 affected
dfacc5a23e227cabdff41b6202f510398e90d36b< cfa5274a5dc2a23b957da5dc806d2ac0c7a66af0 affected
5.8 affected
… +8 more rows
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I. Basic Information for CVE-2026-97435

Vulnerability Information
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Vulnerability Title
net: dsa: sja1105: flower: reject cross-chip redirect
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: sja1105: flower: reject cross-chip redirect dsa_port_from_netdev() may return a valid port from a different switch chip. Programming another chip's port index into the local hardware causes redirection to the wrong port, or an out-of-bounds access if the index exceeds the local chip's port count. Apply a minimal fix that adds a check to catch this case and adjusts the extack message. When cls->common.skip_sw is not set, the operation could instead redirect to the upstream port and let the software or upstream switch(es) handle the forward, but that is not addressed here.
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 dfacc5a23e227cabdff41b6202f510398e90d36b ~ 6bf5158af52a5293e9160d8f2992c629ca14aa7d -
Linux Linux 5.8 -

II. Public POCs for CVE-2026-97435

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III. Intelligence Information for CVE-2026-97435

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Patches & Fixes for CVE-2026-97435 (7)

Same Patch Batch · Linux · 2026-09-24 · 234 CVEs total

CVE-2026-93207 9.8 CRITICAL SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry
CVE-2026-97413 9.8 CRITICAL RDMA/rtrs-srv: Fix integer underflow in process_read and process_write
CVE-2026-93228 9.1 CRITICAL svcrdma: Reject Write/Reply chunks with segcount 0
CVE-2026-93799 8.8 HIGH wifi: iwlwifi: mvm: validate sta_id in BA window status notif
CVE-2026-97442 8.8 HIGH wifi: ath11k: fix invalid data access in ath11k_dp_rx_h_undecap_nwifi
CVE-2026-97409 8.8 HIGH nvme-fc: Do not cancel requests in io target before it is initialized
CVE-2026-93806 8.8 HIGH wifi: cfg80211: validate assoc response length before status and IE access
CVE-2026-93793 8.8 HIGH wifi: iwlwifi: mvm: validate TX_CMD response layout
CVE-2026-93790 8.8 HIGH wifi: iwlwifi: mvm: fix out-of-bounds tid_data access in BA notif
CVE-2026-93284 8.8 HIGH drm/pagemap: dma-unmap pages before handling migration errors
CVE-2026-93280 8.8 HIGH greybus: audio: bound the topology section sizes against the fetched size
CVE-2026-97509 8.8 HIGH thunderbolt: Keep XDomain reference during the lifetime of a service
CVE-2026-93827 8.4 HIGH virtio-fs: avoid double-free on failed queue setup
CVE-2026-97450 8.4 HIGH ACPICA: validate handler object type in two places
CVE-2026-97452 8.4 HIGH ACPICA: Prevent adding invalid references
CVE-2026-97451 8.4 HIGH ACPICA: Fix integer overflow in acpi_ex_opcode_3A_1T_1R() (mid_op)
CVE-2026-97455 8.4 HIGH ACPICA: Fix use-after-free in acpi_ds_terminate_control_method()
CVE-2026-97433 8.2 HIGH nvme: validate FDP configuration descriptor sizes
CVE-2026-93787 8.1 HIGH smb: client: bound dirent name against end of SMB response in cifs_filldir
CVE-2026-93786 8.1 HIGH ksmbd: preserve VFS inherited POSIX ACL mask

Showing top 20 of 234 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-97435

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