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CVE-2026-80609— qede: fix out-of-bounds check for cqe->len_list[]

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.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于对cqe->len_list[]数组元素访问前未进行索引检查，可能导致越界访问。

CVSS 9.8 · Critical EPSS 0.74% · P53

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 22

VendorProduct Version RangeStatus
Linux Linux ecbb12caf399d7cf364b7553ed5aebeaa2f255bc< 6d203bdd227fca1787f8a80cf84b990936633c5a affected
a778912b4a53587ea07d85526d152f85d109cbfe< bd3a6a083b408e96437dbd86ff543ba9ec3a788b affected
f0923011c1261b33a2ac1de349256d39cb750dd0< e30af53dca803893a29eb3bbe0539752ba435410 affected
917a9d02182ac8b4f25eb47dc02f3ec679608c24< 1aacefd074b5dcc99b8dbcd73e1c963ed5010110 affected
896f1a2493b59beb2b5ccdf990503dbb16cb2256< b17751a2ebc4aef3ce6be6f71ee8df92bf5ddfcd affected
896f1a2493b59beb2b5ccdf990503dbb16cb2256< 6d46ab395803f162cdc50e8d346e5f1a4e766771 affected
896f1a2493b59beb2b5ccdf990503dbb16cb2256< f9ba47fce5932c15891c89c60e76dfaca919cb8d affected
e441db07f208184e0466abf44b389a81d70c340e affected
… +14 more rows
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I. Basic Information for CVE-2026-80609

Vulnerability Information
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Vulnerability Title
qede: fix out-of-bounds check for cqe->len_list[]
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: qede: fix out-of-bounds check for cqe->len_list[] Move index check before element access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于对cqe->len_list[]数组元素访问前未进行索引检查，可能导致越界访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux ecbb12caf399d7cf364b7553ed5aebeaa2f255bc ~ 6d203bdd227fca1787f8a80cf84b990936633c5a -
Linux Linux 6.18 -

II. Public POCs for CVE-2026-80609

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III. Intelligence Information for CVE-2026-80609

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Patches & Fixes for CVE-2026-80609 (7)

Same Patch Batch · Linux · 2026-08-28 · 135 CVEs total

CVE-2026-80634 9.8 CRITICAL netfilter: flowtable: avoid num_encaps underflow on bridge VLAN untag
CVE-2026-80694 9.8 CRITICAL net: ethernet: mtk_eth_soc: pass eth to mtk_handle_irq_rx in poll_controller
CVE-2026-80681 9.8 CRITICAL vxlan: re-fetch eth header after route_shortcircuit()
CVE-2026-80674 9.8 CRITICAL ntfs: validate resident attribute lists and harden the validator
CVE-2026-80673 9.8 CRITICAL ntfs: bound the look-ahead attribute-list entry in ntfs_external_attr_find()
CVE-2026-80668 9.8 CRITICAL netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
CVE-2026-80630 9.8 CRITICAL net/sched: sch_fq_codel: Do not call qdisc_tree_reduce_backlog during peek before restorin
CVE-2026-80617 9.8 CRITICAL net: airoha: fix foe_check_time allocation size
CVE-2026-80714 9.8 CRITICAL ipvs: do not propagate one-packet flag to synced conns
CVE-2026-80612 9.8 CRITICAL net: lwtunnel: Drop skb metadata before LWT encapsulation
CVE-2026-80600 9.8 CRITICAL batman-adv: dat: acquire ARP hw source only after skb realloc
CVE-2026-80693 9.3 CRITICAL idpf: bound interrupt-vector register fill to the allocated array
CVE-2026-80684 9.3 CRITICAL KVM: s390: pci: Fix NULL dereference on AIBV allocation failure
CVE-2026-80671 9.3 CRITICAL perf sched: Fix register_pid() overflow, strcpy, and BUG_ON
CVE-2026-80603 9.1 CRITICAL netfilter: nf_conntrack_irc: fix parse_dcc() off-by-one OOB read
CVE-2026-80670 9.1 CRITICAL perf tools: Use perf_env__get_cpu_topology() in machine__resolve()
CVE-2026-80721 8.8 HIGH Bluetooth: ISO: ensure no dangling hcon references in iso_conn
CVE-2026-80722 8.8 HIGH wifi: mac80211: validate individual TWT params before driver setup
CVE-2026-80724 8.8 HIGH ptp: vmclock: prevent read-only mappings from becoming writable
CVE-2026-80683 8.8 HIGH Bluetooth: SCO: give the socket its own sco_conn reference

Showing top 20 of 135 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-80609

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