CVE-2026-23353 (GCVE-0-2026-23353)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-03-25 10:27
VLAI?
Title
ice: fix crash in ethtool offline loopback test
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: fix crash in ethtool offline loopback test Since the conversion of ice to page pool, the ethtool loopback test crashes: BUG: kernel NULL pointer dereference, address: 000000000000000c #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 1100f1067 P4D 0 Oops: Oops: 0002 [#1] SMP NOPTI 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) Hardware name: [...] RIP: 0010:ice_alloc_rx_bufs+0x1cd/0x310 [ice] 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 RSP: 0018:ff7894738aa1f768 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000700 RDI: 0000000000000000 RBP: 0000000000000000 R08: ff16dcae79880200 R09: 0000000000000019 R10: 0000000000000001 R11: 0000000000001000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ff16dcae6c670000 FS: 00007fcf428850c0(0000) GS:ff16dcb149710000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000000000c CR3: 0000000121227005 CR4: 0000000000773ef0 PKRU: 55555554 Call Trace: <TASK> ice_vsi_cfg_rxq+0xca/0x460 [ice] ice_vsi_cfg_rxqs+0x54/0x70 [ice] ice_loopback_test+0xa9/0x520 [ice] ice_self_test+0x1b9/0x280 [ice] ethtool_self_test+0xe5/0x200 __dev_ethtool+0x1106/0x1a90 dev_ethtool+0xbe/0x1a0 dev_ioctl+0x258/0x4c0 sock_do_ioctl+0xe3/0x130 __x64_sys_ioctl+0xb9/0x100 do_syscall_64+0x7c/0x700 entry_SYSCALL_64_after_hwframe+0x76/0x7e [...] It crashes because we have not initialized libeth for the rx ring. Fix it by treating ICE_VSI_LB VSIs slightly more like normal PF VSIs and letting them have a q_vector. It's just a dummy, because the loopback test does not use interrupts, but it contains a napi struct that can be passed to libeth_rx_fq_create() called from ice_vsi_cfg_rxq() -> ice_rxq_pp_create().
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 93f53db9f9dc4a16b40ecd18e6d338ad57e4b670 , < 85c98b81849e4724ae99005a6cccd33cab9cfd18 (git)
Affected: 93f53db9f9dc4a16b40ecd18e6d338ad57e4b670 , < a9c354e656597aededa027d63d2ff0973f6b033f (git)
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    Linux Linux Affected: 6.19
Unaffected: 0 , < 6.19 (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_base.c",
            "drivers/net/ethernet/intel/ice/ice_ethtool.c",
            "drivers/net/ethernet/intel/ice/ice_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "85c98b81849e4724ae99005a6cccd33cab9cfd18",
              "status": "affected",
              "version": "93f53db9f9dc4a16b40ecd18e6d338ad57e4b670",
              "versionType": "git"
            },
            {
              "lessThan": "a9c354e656597aededa027d63d2ff0973f6b033f",
              "status": "affected",
              "version": "93f53db9f9dc4a16b40ecd18e6d338ad57e4b670",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_base.c",
            "drivers/net/ethernet/intel/ice/ice_ethtool.c",
            "drivers/net/ethernet/intel/ice/ice_lib.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc3",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 \u003c89\u003e 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  \u003cTASK\u003e\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\u0027s 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() -\u003e\nice_rxq_pp_create()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-25T10:27:38.167Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/85c98b81849e4724ae99005a6cccd33cab9cfd18"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9c354e656597aededa027d63d2ff0973f6b033f"
        }
      ],
      "title": "ice: fix crash in ethtool offline loopback test",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23353",
    "datePublished": "2026-03-25T10:27:38.167Z",
    "dateReserved": "2026-01-13T15:37:46.000Z",
    "dateUpdated": "2026-03-25T10:27:38.167Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-23353\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-03-25T11:16:33.817\",\"lastModified\":\"2026-03-25T15:41:33.977\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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 \u003c89\u003e 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  \u003cTASK\u003e\\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\u0027s 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() -\u003e\\nice_rxq_pp_create().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/85c98b81849e4724ae99005a6cccd33cab9cfd18\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a9c354e656597aededa027d63d2ff0973f6b033f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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