CVE-2022-50054 (GCVE-0-2022-50054)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2025-06-18 11:01
VLAI?
Title
iavf: Fix NULL pointer dereference in iavf_get_link_ksettings
Summary
In the Linux kernel, the following vulnerability has been resolved: iavf: Fix NULL pointer dereference in iavf_get_link_ksettings Fix possible NULL pointer dereference, due to freeing of adapter->vf_res in iavf_init_get_resources. Previous commit introduced a regression, where receiving IAVF_ERR_ADMIN_QUEUE_NO_WORK from iavf_get_vf_config would free adapter->vf_res. However, netdev is still registered, so ethtool_ops can be called. Calling iavf_get_link_ksettings with no vf_res, will result with: [ 9385.242676] BUG: kernel NULL pointer dereference, address: 0000000000000008 [ 9385.242683] #PF: supervisor read access in kernel mode [ 9385.242686] #PF: error_code(0x0000) - not-present page [ 9385.242690] PGD 0 P4D 0 [ 9385.242696] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI [ 9385.242701] CPU: 6 PID: 3217 Comm: pmdalinux Kdump: loaded Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1 [ 9385.242708] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019 [ 9385.242710] RIP: 0010:iavf_get_link_ksettings+0x29/0xd0 [iavf] [ 9385.242745] Code: 00 0f 1f 44 00 00 b8 01 ef ff ff 48 c7 46 30 00 00 00 00 48 c7 46 38 00 00 00 00 c6 46 0b 00 66 89 46 08 48 8b 87 68 0e 00 00 <f6> 40 08 80 75 50 8b 87 5c 0e 00 00 83 f8 08 74 7a 76 1d 83 f8 20 [ 9385.242749] RSP: 0018:ffffc0560ec7fbd0 EFLAGS: 00010246 [ 9385.242755] RAX: 0000000000000000 RBX: ffffc0560ec7fc08 RCX: 0000000000000000 [ 9385.242759] RDX: ffffffffc0ad4550 RSI: ffffc0560ec7fc08 RDI: ffffa0fc66674000 [ 9385.242762] RBP: 00007ffd1fb2bf50 R08: b6a2d54b892363ee R09: ffffa101dc14fb00 [ 9385.242765] R10: 0000000000000000 R11: 0000000000000004 R12: ffffa0fc66674000 [ 9385.242768] R13: 0000000000000000 R14: ffffa0fc66674000 R15: 00000000ffffffa1 [ 9385.242771] FS: 00007f93711a2980(0000) GS:ffffa0fad72c0000(0000) knlGS:0000000000000000 [ 9385.242775] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9385.242778] CR2: 0000000000000008 CR3: 0000000a8e61c003 CR4: 00000000003706e0 [ 9385.242781] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 9385.242784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 9385.242787] Call Trace: [ 9385.242791] <TASK> [ 9385.242793] ethtool_get_settings+0x71/0x1a0 [ 9385.242814] __dev_ethtool+0x426/0x2f40 [ 9385.242823] ? slab_post_alloc_hook+0x4f/0x280 [ 9385.242836] ? kmem_cache_alloc_trace+0x15d/0x2f0 [ 9385.242841] ? dev_ethtool+0x59/0x170 [ 9385.242848] dev_ethtool+0xa7/0x170 [ 9385.242856] dev_ioctl+0xc3/0x520 [ 9385.242866] sock_do_ioctl+0xa0/0xe0 [ 9385.242877] sock_ioctl+0x22f/0x320 [ 9385.242885] __x64_sys_ioctl+0x84/0xc0 [ 9385.242896] do_syscall_64+0x3a/0x80 [ 9385.242904] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 9385.242918] RIP: 0033:0x7f93702396db [ 9385.242923] Code: 73 01 c3 48 8b 0d ad 57 38 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 57 38 00 f7 d8 64 89 01 48 [ 9385.242927] RSP: 002b:00007ffd1fb2bf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 9385.242932] RAX: ffffffffffffffda RBX: 000055671b1d2fe0 RCX: 00007f93702396db [ 9385.242935] RDX: 00007ffd1fb2bf20 RSI: 0000000000008946 RDI: 0000000000000007 [ 9385.242937] RBP: 00007ffd1fb2bf20 R08: 0000000000000003 R09: 0030763066307330 [ 9385.242940] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fb2bf80 [ 9385.242942] R13: 0000000000000007 R14: 0000556719f6de90 R15: 00007ffd1fb2c1b0 [ 9385.242948] </TASK> [ 9385.242949] Modules linked in: iavf(E) xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nft_compat nf_nat_tftp nft_objref nf_conntrack_tftp bridge stp llc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink vfat fat irdma ib_uverbs ib_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretem ---truncated---
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 209f2f9c718138ddbd8586e5a1463bd079a17241 , < b305c7e9363f5a174ee08ac5f056e4b209f0325b (git)
Affected: 209f2f9c718138ddbd8586e5a1463bd079a17241 , < 541a1af451b0cb3779e915d48d08efb17915207b (git)
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    Linux Linux Affected: 5.17
Unaffected: 0 , < 5.17 (semver)
Unaffected: 5.19.4 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/iavf/iavf_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "b305c7e9363f5a174ee08ac5f056e4b209f0325b",
              "status": "affected",
              "version": "209f2f9c718138ddbd8586e5a1463bd079a17241",
              "versionType": "git"
            },
            {
              "lessThan": "541a1af451b0cb3779e915d48d08efb17915207b",
              "status": "affected",
              "version": "209f2f9c718138ddbd8586e5a1463bd079a17241",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/iavf/iavf_main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.17"
            },
            {
              "lessThan": "5.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.4",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0",
                  "versionStartIncluding": "5.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: Fix NULL pointer dereference in iavf_get_link_ksettings\n\nFix possible NULL pointer dereference, due to freeing of adapter-\u003evf_res\nin iavf_init_get_resources. Previous commit introduced a regression,\nwhere receiving IAVF_ERR_ADMIN_QUEUE_NO_WORK from iavf_get_vf_config\nwould free adapter-\u003evf_res. However, netdev is still registered, so\nethtool_ops can be called. Calling iavf_get_link_ksettings with no vf_res,\nwill result with:\n[ 9385.242676] BUG: kernel NULL pointer dereference, address: 0000000000000008\n[ 9385.242683] #PF: supervisor read access in kernel mode\n[ 9385.242686] #PF: error_code(0x0000) - not-present page\n[ 9385.242690] PGD 0 P4D 0\n[ 9385.242696] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI\n[ 9385.242701] CPU: 6 PID: 3217 Comm: pmdalinux Kdump: loaded Tainted: G S          E     5.18.0-04958-ga54ce3703613-dirty #1\n[ 9385.242708] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019\n[ 9385.242710] RIP: 0010:iavf_get_link_ksettings+0x29/0xd0 [iavf]\n[ 9385.242745] Code: 00 0f 1f 44 00 00 b8 01 ef ff ff 48 c7 46 30 00 00 00 00 48 c7 46 38 00 00 00 00 c6 46 0b 00 66 89 46 08 48 8b 87 68 0e 00 00 \u003cf6\u003e 40 08 80 75 50 8b 87 5c 0e 00 00 83 f8 08 74 7a 76 1d 83 f8 20\n[ 9385.242749] RSP: 0018:ffffc0560ec7fbd0 EFLAGS: 00010246\n[ 9385.242755] RAX: 0000000000000000 RBX: ffffc0560ec7fc08 RCX: 0000000000000000\n[ 9385.242759] RDX: ffffffffc0ad4550 RSI: ffffc0560ec7fc08 RDI: ffffa0fc66674000\n[ 9385.242762] RBP: 00007ffd1fb2bf50 R08: b6a2d54b892363ee R09: ffffa101dc14fb00\n[ 9385.242765] R10: 0000000000000000 R11: 0000000000000004 R12: ffffa0fc66674000\n[ 9385.242768] R13: 0000000000000000 R14: ffffa0fc66674000 R15: 00000000ffffffa1\n[ 9385.242771] FS:  00007f93711a2980(0000) GS:ffffa0fad72c0000(0000) knlGS:0000000000000000\n[ 9385.242775] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 9385.242778] CR2: 0000000000000008 CR3: 0000000a8e61c003 CR4: 00000000003706e0\n[ 9385.242781] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 9385.242784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 9385.242787] Call Trace:\n[ 9385.242791]  \u003cTASK\u003e\n[ 9385.242793]  ethtool_get_settings+0x71/0x1a0\n[ 9385.242814]  __dev_ethtool+0x426/0x2f40\n[ 9385.242823]  ? slab_post_alloc_hook+0x4f/0x280\n[ 9385.242836]  ? kmem_cache_alloc_trace+0x15d/0x2f0\n[ 9385.242841]  ? dev_ethtool+0x59/0x170\n[ 9385.242848]  dev_ethtool+0xa7/0x170\n[ 9385.242856]  dev_ioctl+0xc3/0x520\n[ 9385.242866]  sock_do_ioctl+0xa0/0xe0\n[ 9385.242877]  sock_ioctl+0x22f/0x320\n[ 9385.242885]  __x64_sys_ioctl+0x84/0xc0\n[ 9385.242896]  do_syscall_64+0x3a/0x80\n[ 9385.242904]  entry_SYSCALL_64_after_hwframe+0x46/0xb0\n[ 9385.242918] RIP: 0033:0x7f93702396db\n[ 9385.242923] Code: 73 01 c3 48 8b 0d ad 57 38 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 57 38 00 f7 d8 64 89 01 48\n[ 9385.242927] RSP: 002b:00007ffd1fb2bf18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\n[ 9385.242932] RAX: ffffffffffffffda RBX: 000055671b1d2fe0 RCX: 00007f93702396db\n[ 9385.242935] RDX: 00007ffd1fb2bf20 RSI: 0000000000008946 RDI: 0000000000000007\n[ 9385.242937] RBP: 00007ffd1fb2bf20 R08: 0000000000000003 R09: 0030763066307330\n[ 9385.242940] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd1fb2bf80\n[ 9385.242942] R13: 0000000000000007 R14: 0000556719f6de90 R15: 00007ffd1fb2c1b0\n[ 9385.242948]  \u003c/TASK\u003e\n[ 9385.242949] Modules linked in: iavf(E) xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nft_compat nf_nat_tftp nft_objref nf_conntrack_tftp bridge stp llc nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables rfkill nfnetlink vfat fat irdma ib_uverbs ib_core intel_rapl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretem\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-06-18T11:01:58.769Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b305c7e9363f5a174ee08ac5f056e4b209f0325b"
        },
        {
          "url": "https://git.kernel.org/stable/c/541a1af451b0cb3779e915d48d08efb17915207b"
        }
      ],
      "title": "iavf: Fix NULL pointer dereference in iavf_get_link_ksettings",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50054",
    "datePublished": "2025-06-18T11:01:58.769Z",
    "dateReserved": "2025-06-18T10:57:27.403Z",
    "dateUpdated": "2025-06-18T11:01:58.769Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.