{"cve":"CVE-2026-23166","nvd":{"published":"2026-02-14T16:15:56.797","modified":"2026-06-17T10:21:01.360","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: Fix NULL pointer dereference in ice_vsi_set_napi_queues\n\nAdd NULL pointer checks in ice_vsi_set_napi_queues() to prevent crashes\nduring resume from suspend when rings[q_idx]->q_vector is NULL.\n\nTested adaptor:\n60:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller E810-XXV for SFP [8086:159b] (rev 02)\n        Subsystem: Intel Corporation Ethernet Network Adapter E810-XXV-2 [8086:4003]\n\nSR-IOV state: both disabled and enabled can reproduce this issue.\n\nkernel version: v6.18\n\nReproduce steps:\nBoot up and execute suspend like systemctl suspend or rtcwake.\n\nLog:\n<1>[  231.443607] BUG: kernel NULL pointer dereference, address: 0000000000000040\n<1>[  231.444052] #PF: supervisor read access in kernel mode\n<1>[  231.444484] #PF: error_code(0x0000) - not-present page\n<6>[  231.444913] PGD 0 P4D 0\n<4>[  231.445342] Oops: Oops: 0000 [#1] SMP NOPTI\n<4>[  231.446635] RIP: 0010:netif_queue_set_napi+0xa/0x170\n<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\n<4>[  231.447513] RSP: 0018:ffffcc780fc078c0 EFLAGS: 00010202\n<4>[  231.447961] RAX: ffff8b848ca30400 RBX: ffff8b848caf2028 RCX: 0000000000000010\n<4>[  231.448443] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8b848dbd4000\n<4>[  231.448896] RBP: ffffcc780fc078e8 R08: 0000000000000000 R09: 0000000000000000\n<4>[  231.449345] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001\n<4>[  231.449817] R13: ffff8b848dbd4000 R14: ffff8b84833390c8 R15: 0000000000000000\n<4>[  231.450265] FS:  00007c7b29e9d740(0000) GS:ffff8b8c068e2000(0000) knlGS:0000000000000000\n<4>[  231.450715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n<4>[  231.451179] CR2: 0000000000000040 CR3: 000000030626f004 CR4: 0000000000f72ef0\n<4>[  231.451629] PKRU: 55555554\n<4>[  231.452076] Call Trace:\n<4>[  231.452549]  <TASK>\n<4>[  231.452996]  ? ice_vsi_set_napi_queues+0x4d/0x110 [ice]\n<4>[  231.453482]  ice_resume+0xfd/0x220 [ice]\n<4>[  231.453977]  ? __pfx_pci_pm_resume+0x10/0x10\n<4>[  231.454425]  pci_pm_resume+0x8c/0x140\n<4>[  231.454872]  ? __pfx_pci_pm_resume+0x10/0x10\n<4>[  231.455347]  dpm_run_callback+0x5f/0x160\n<4>[  231.455796]  ? dpm_wait_for_superior+0x107/0x170\n<4>[  231.456244]  device_resume+0x177/0x270\n<4>[  231.456708]  dpm_resume+0x209/0x2f0\n<4>[  231.457151]  dpm_resume_end+0x15/0x30\n<4>[  231.457596]  suspend_devices_and_enter+0x1da/0x2b0\n<4>[  231.458054]  enter_state+0x10e/0x570\n\nAdd defensive checks for both the ring pointer and its q_vector\nbefore dereferencing, allowing the system to resume successfully even when\nq_vectors are unmapped.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/36126ddbe924727add05a594dedf230d3b575e4d","https://git.kernel.org/stable/c/9bb30be4d89ff9a8d7ab1aa0eb2edaca83431f85","https://git.kernel.org/stable/c/d75c7b7c3c2b8e3569043099e6bdcefc983856c5"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2026-23166","score":0.00132,"percentile":0.02759,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}