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CVE-2026-23054— net: hv_netvsc: reject RSS hash key programming without RX indirection table

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基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在没有RX间接表时接受RSS哈希密钥更新，可能导致挂起。

AI Predicted 5.3 Difficulty: Easy EPSS 0.20% · P10

Possible ATT&CK Techniques 1 AI

T1499.001 · OS Exhaustion Flood

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9< 8288136f508e78eb3563e7073975999cf225a2f9 affected
962f3fee83a4ef9010ae84dc43ae7aecb572e2a9< 82c9039c8ebb715753a40434df714f865a3aec9c affected
962f3fee83a4ef9010ae84dc43ae7aecb572e2a9< 4cd55c609e85ae2313248ef1a33619a3eef44a16 affected
962f3fee83a4ef9010ae84dc43ae7aecb572e2a9< 11dd9a9ef4dc4507a15a69b8511a0013c6c28fa3 affected
962f3fee83a4ef9010ae84dc43ae7aecb572e2a9< d23564955811da493f34412d7de60fa268c8cb50 affected
4.11 affected
< 4.11 unaffected
6.1.162≤ 6.1.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-23054

Vulnerability Information
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Vulnerability Title
net: hv_netvsc: reject RSS hash key programming without RX indirection table
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: hv_netvsc: reject RSS hash key programming without RX indirection table RSS configuration requires a valid RX indirection table. When the device reports a single receive queue, rndis_filter_device_add() does not allocate an indirection table, accepting RSS hash key updates in this state leads to a hang. Fix this by gating netvsc_set_rxfh() on ndc->rx_table_sz and return -EOPNOTSUPP when the table is absent. This aligns set_rxfh with the device capabilities and prevents incorrect behavior.
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于在没有RX间接表时接受RSS哈希密钥更新，可能导致挂起。
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 962f3fee83a4ef9010ae84dc43ae7aecb572e2a9 ~ 8288136f508e78eb3563e7073975999cf225a2f9 -
Linux Linux 4.11 -

II. Public POCs for CVE-2026-23054

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III. Intelligence Information for CVE-2026-23054

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Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total

CVE-2026-23098 8.8 HIGH netrom: fix double-free in nr_route_frame()
CVE-2026-23066 7.8 HIGH rxrpc: Fix recvmsg() unconditional requeue
CVE-2026-23074 7.8 HIGH net/sched: Enforce that teql can only be used as root qdisc
CVE-2026-23077 7.8 HIGH mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge
CVE-2026-23105 7.8 HIGH net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag
CVE-2026-23103 7.8 HIGH ipvlan: Make the addrs_lock be per port
CVE-2026-23095 7.5 HIGH gue: Fix skb memleak with inner IP protocol 0.
CVE-2025-71192 7.0 HIGH ALSA: ac97: fix a double free in snd_ac97_controller_register()
CVE-2026-23064 net/sched: act_ife: avoid possible NULL deref
CVE-2026-23065 platform/x86/amd: Fix memory leak in wbrf_record()
CVE-2026-23067 iommu/io-pgtable-arm: fix size_t signedness bug in unmap path
CVE-2026-23042 idpf: fix aux device unplugging when rdma is not supported by vport
CVE-2026-23060 crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
CVE-2026-23059 scsi: qla2xxx: Sanitize payload size to prevent member overflow
CVE-2026-23058 can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak
CVE-2026-23057 vsock/virtio: Coalesce only linear skb
CVE-2026-23056 uacce: implement mremap in uacce_vm_ops to return -EPERM
CVE-2025-71199 iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver
CVE-2025-71198 iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection
CVE-2026-23061 can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23054

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