VulnerabilityPublished 14 Feb 2026Updated 5 Nov 2026

CVE-2026-23166: Linux kernel · ice: Fix NULL pointer dereference in ice_vsi_set_napi_queues

Affects Linux kernelSource CVE Database V5

Compare

Not known to be exploited · fixed in d75c7b7c3c2b8e3569043099e6bdcefc983856c5 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:34 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch

Available – fixed in d75c7b7c3c2b8e3569043099e6bdcefc983856c5, 36126ddbe924727add05a594dedf230d3b575e4d, 9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to d75c7b7c3c2b8e3569043099e6bdcefc983856c5, 36126ddbe924727add05a594dedf230d3b575e4d, 9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85 or 6.11.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected >=6.10.10 <6.11	Fixed in d75c7b7c3c2b8e3569043099e6bdcefc983856c5 36126ddbe924727add05a594dedf230d3b575e4d 9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85 6.11
LinuxLinux	Affected =6.11	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: ice: Fix NULL pointer dereference in ice_vsi_set_napi_queues Add NULL pointer checks in ice_vsi_set_napi_queues() to prevent crashes during resume from suspend when rings[q_idx]->q_vector is NULL. Tested adaptor: 60:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02) Subsystem: Intel Corporation Ethernet Network Adapter E810-XXV-2 [8086:4003] SR-IOV state: both disabled and enabled can reproduce this issue. kernel version: v6.18 Reproduce steps: Boot up and execute suspend like systemctl suspend or rtcwake. Log: <1>[ 231.443607] BUG: kernel NULL pointer dereference, address: 0000000000000040 <1>[ 231.444052] #PF: supervisor read access in kernel mode <1>[ 231.444484] #PF: error_code(0x0000) - not-present page <6>[ 231.444913] PGD 0 P4D 0 <4>[ 231.445342] Oops: Oops: 0000 [#1] SMP NOPTI <4>[ 231.446635] RIP: 0010:netif_queue_set_napi+0xa/0x170 <4>[ 231.447067] Code: 31 f6 31 ff c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 48 85 c9 74 0b <48> 83 79 30 00 0f 84 39 01 00 00 55 41 89 d1 49 89 f8 89 f2 48 89 <4>[ 231.447513] RSP: 0018:ffffcc780fc078c0 EFLAGS: 00010202 <4>[ 231.447961] RAX: ffff8b848ca30400 RBX: ffff8b848caf2028 RCX: 0000000000000010 <4>[ 231.448443] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8b848dbd4000 <4>[ 231.448896] RBP: ffffcc780fc078e8 R08: 0000000000000000 R09: 0000000000000000 <4>[ 231.449345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 <4>[ 231.449817] R13: ffff8b848dbd4000 R14: ffff8b84833390c8 R15: 0000000000000000 <4>[ 231.450265] FS: 00007c7b29e9d740(0000) GS:ffff8b8c068e2000(0000) knlGS:0000000000000000 <4>[ 231.450715] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 231.451179] CR2: 0000000000000040 CR3: 000000030626f004 CR4: 0000000000f72ef0 <4>[ 231.451629] PKRU: 55555554 <4>[ 231.452076] Call Trace: <4>[ 231.452549] <TASK> <4>[ 231.452996] ? ice_vsi_set_napi_queues+0x4d/0x110 [ice] <4>[ 231.453482] ice_resume+0xfd/0x220 [ice] <4>[ 231.453977] ? __pfx_pci_pm_resume+0x10/0x10 <4>[ 231.454425] pci_pm_resume+0x8c/0x140 <4>[ 231.454872] ? __pfx_pci_pm_resume+0x10/0x10 <4>[ 231.455347] dpm_run_callback+0x5f/0x160 <4>[ 231.455796] ? dpm_wait_for_superior+0x107/0x170 <4>[ 231.456244] device_resume+0x177/0x270 <4>[ 231.456708] dpm_resume+0x209/0x2f0 <4>[ 231.457151] dpm_resume_end+0x15/0x30 <4>[ 231.457596] suspend_devices_and_enter+0x1da/0x2b0 <4>[ 231.458054] enter_state+0x10e/0x570 Add defensive checks for both the ring pointer and its q_vector before dereferencing, allowing the system to resume successfully even when q_vectors are unmapped.

References

Community reviews

Loading reviews…