{"id":"CVE-2026-23353","revision":null,"records":[{"revision":"4cbcfe56df8c46b98f6c5235b65352fd","observedAt":"2026-10-26T16:35:30.797+00:00","statement":{"source":"cve-program","id":"CVE-2026-23353","aliases":[],"title":"ice: fix crash in ethtool offline loopback test","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix crash in ethtool offline loopback test\n\nSince the conversion of ice to page pool, the ethtool loopback test\ncrashes:\n\n BUG: kernel NULL pointer dereference, address: 000000000000000c\n #PF: supervisor write access in kernel mode\n #PF: error_code(0x0002) - not-present page\n PGD 1100f1067 P4D 0\n Oops: Oops: 0002 [#1] SMP NOPTI\n CPU: 23 UID: 0 PID: 5904 Comm: ethtool Kdump: loaded Not tainted 6.19.0-0.rc7.260128g1f97d9dcf5364.49.eln154.x86_64 #1 PREEMPT(lazy)\n Hardware name: [...]\n RIP: 0010:ice_alloc_rx_bufs+0x1cd/0x310 [ice]\n Code: 83 6c 24 30 01 66 41 89 47 08 0f 84 c0 00 00 00 41 0f b7 dc 48 8b 44 24 18 48 c1 e3 04 41 bb 00 10 00 00 48 8d 2c 18 8b 04 24 <89> 45 0c 41 8b 4d 00 49 d3 e3 44 3b 5c 24 24 0f 83 ac fe ff ff 44\n RSP: 0018:ff7894738aa1f768 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000700 RDI: 0000000000000000\n RBP: 0000000000000000 R08: ff16dcae79880200 R09: 0000000000000019\n R10: 0000000000000001 R11: 0000000000001000 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: ff16dcae6c670000\n FS:  00007fcf428850c0(0000) GS:ff16dcb149710000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 000000000000000c CR3: 0000000121227005 CR4: 0000000000773ef0\n PKRU: 55555554\n Call Trace:\n  <TASK>\n  ice_vsi_cfg_rxq+0xca/0x460 [ice]\n  ice_vsi_cfg_rxqs+0x54/0x70 [ice]\n  ice_loopback_test+0xa9/0x520 [ice]\n  ice_self_test+0x1b9/0x280 [ice]\n  ethtool_self_test+0xe5/0x200\n  __dev_ethtool+0x1106/0x1a90\n  dev_ethtool+0xbe/0x1a0\n  dev_ioctl+0x258/0x4c0\n  sock_do_ioctl+0xe3/0x130\n  __x64_sys_ioctl+0xb9/0x100\n  do_syscall_64+0x7c/0x700\n  entry_SYSCALL_64_after_hwframe+0x76/0x7e\n  [...]\n\nIt crashes because we have not initialized libeth for the rx ring.\n\nFix it by treating ICE_VSI_LB VSIs slightly more like normal PF VSIs and\nletting them have a q_vector. It's just a dummy, because the loopback\ntest does not use interrupts, but it contains a napi struct that can be\npassed to libeth_rx_fq_create() called from ice_vsi_cfg_rxq() ->\nice_rxq_pp_create().","state":0,"publishedAt":"2026-03-25T10:27:38.167+00:00","modifiedAt":"2026-10-26T15:12:55.677+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/intel/ice/ice_base.c\",\n                        \"drivers/net/ethernet/intel/ice/ice_ethtool.c\",\n                        \"drivers/net/ethernet/intel/ice/ice_lib.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f4a25618c36835d073caef2745e6bf02ad2723ca\",\n                            \"lessThan\": \"a4c584ea79d958ea1cadc9ce056f6df58a363342\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"93f53db9f9dc4a16b40ecd18e6d338ad57e4b670\",\n                            \"lessThan\": \"85c98b81849e4724ae99005a6cccd33cab9cfd18\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"93f53db9f9dc4a16b40ecd18e6d338ad57e4b670\",\n                            \"lessThan\": \"a9c354e656597aededa027d63d2ff0973f6b033f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/ethernet/intel/ice/ice_base.c\",\n                        \"drivers/net/ethernet/intel/ice/ice_ethtool.c\",\n                        \"drivers/net/ethernet/intel/ice/ice_lib.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.19\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.19\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.19.7\",\n                            \"lessThanOrEqual\": \"6.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a4c584ea79d958ea1cadc9ce056f6df58a363342","https://git.kernel.org/stable/c/85c98b81849e4724ae99005a6cccd33cab9cfd18","https://git.kernel.org/stable/c/a9c354e656597aededa027d63d2ff0973f6b033f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23353","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-23353","identifiers":["CVE-2026-23353"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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