github - ghsa-6vhv-fv5r-vfg6

GHSA-6VHV-FV5R-VFG6

Vulnerability from github – Published: 2024-08-21 09:31 – Updated: 2025-01-08 21:32

Details

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5: Fix command stats access after free

Command may fail while driver is reloading and can't accept FW commands till command interface is reinitialized. Such command failure is being logged to command stats. This results in NULL pointer access as command stats structure is being freed and reallocated during mlx5 devlink reload (see kernel log below).

Fix it by making command stats statically allocated on driver probe.

Kernel log: [ 2394.808802] BUG: unable to handle kernel paging request at 000000000002a9c0 [ 2394.810610] PGD 0 P4D 0 [ 2394.811811] Oops: 0002 [#1] SMP NOPTI ... [ 2394.815482] RIP: 0010:native_queued_spin_lock_slowpath+0x183/0x1d0 ... [ 2394.829505] Call Trace: [ 2394.830667] _raw_spin_lock_irq+0x23/0x26 [ 2394.831858] cmd_status_err+0x55/0x110 [mlx5_core] [ 2394.833020] mlx5_access_reg+0xe7/0x150 [mlx5_core] [ 2394.834175] mlx5_query_port_ptys+0x78/0xa0 [mlx5_core] [ 2394.835337] mlx5e_ethtool_get_link_ksettings+0x74/0x590 [mlx5_core] [ 2394.836454] ? kmem_cache_alloc_trace+0x140/0x1c0 [ 2394.837562] __rh_call_get_link_ksettings+0x33/0x100 [ 2394.838663] ? __rtnl_unlock+0x25/0x50 [ 2394.839755] __ethtool_get_link_ksettings+0x72/0x150 [ 2394.840862] duplex_show+0x6e/0xc0 [ 2394.841963] dev_attr_show+0x1c/0x40 [ 2394.843048] sysfs_kf_seq_show+0x9b/0x100 [ 2394.844123] seq_read+0x153/0x410 [ 2394.845187] vfs_read+0x91/0x140 [ 2394.846226] ksys_read+0x4f/0xb0 [ 2394.847234] do_syscall_64+0x5b/0x1a0 [ 2394.848228] entry_SYSCALL_64_after_hwframe+0x65/0xca

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48884"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-21T07:15:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix command stats access after free\n\nCommand may fail while driver is reloading and can\u0027t accept FW commands\ntill command interface is reinitialized. Such command failure is being\nlogged to command stats. This results in NULL pointer access as command\nstats structure is being freed and reallocated during mlx5 devlink\nreload (see kernel log below).\n\nFix it by making command stats statically allocated on driver probe.\n\nKernel log:\n[ 2394.808802] BUG: unable to handle kernel paging request at 000000000002a9c0\n[ 2394.810610] PGD 0 P4D 0\n[ 2394.811811] Oops: 0002 [#1] SMP NOPTI\n...\n[ 2394.815482] RIP: 0010:native_queued_spin_lock_slowpath+0x183/0x1d0\n...\n[ 2394.829505] Call Trace:\n[ 2394.830667]  _raw_spin_lock_irq+0x23/0x26\n[ 2394.831858]  cmd_status_err+0x55/0x110 [mlx5_core]\n[ 2394.833020]  mlx5_access_reg+0xe7/0x150 [mlx5_core]\n[ 2394.834175]  mlx5_query_port_ptys+0x78/0xa0 [mlx5_core]\n[ 2394.835337]  mlx5e_ethtool_get_link_ksettings+0x74/0x590 [mlx5_core]\n[ 2394.836454]  ? kmem_cache_alloc_trace+0x140/0x1c0\n[ 2394.837562]  __rh_call_get_link_ksettings+0x33/0x100\n[ 2394.838663]  ? __rtnl_unlock+0x25/0x50\n[ 2394.839755]  __ethtool_get_link_ksettings+0x72/0x150\n[ 2394.840862]  duplex_show+0x6e/0xc0\n[ 2394.841963]  dev_attr_show+0x1c/0x40\n[ 2394.843048]  sysfs_kf_seq_show+0x9b/0x100\n[ 2394.844123]  seq_read+0x153/0x410\n[ 2394.845187]  vfs_read+0x91/0x140\n[ 2394.846226]  ksys_read+0x4f/0xb0\n[ 2394.847234]  do_syscall_64+0x5b/0x1a0\n[ 2394.848228]  entry_SYSCALL_64_after_hwframe+0x65/0xca",
  "id": "GHSA-6vhv-fv5r-vfg6",
  "modified": "2025-01-08T21:32:23Z",
  "published": "2024-08-21T09:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48884"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da2e552b469a0cd130ff70a88ccc4139da428a65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ddf458641a511e7dff19f3bf0cbbc5dd9fe08ce5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-48884 (GCVE-0-2022-48884)

Vulnerability from cvelistv5 – Published: 2024-08-21 06:10 – Updated: 2025-05-04 08:25

Summary

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix command stats access after free Command may fail while driver is reloading and can't accept FW commands till command interface is reinitialized. Such command failure is being logged to command stats. This results in NULL pointer access as command stats structure is being freed and reallocated during mlx5 devlink reload (see kernel log below). Fix it by making command stats statically allocated on driver probe. Kernel log: [ 2394.808802] BUG: unable to handle kernel paging request at 000000000002a9c0 [ 2394.810610] PGD 0 P4D 0 [ 2394.811811] Oops: 0002 [#1] SMP NOPTI ... [ 2394.815482] RIP: 0010:native_queued_spin_lock_slowpath+0x183/0x1d0 ... [ 2394.829505] Call Trace: [ 2394.830667] _raw_spin_lock_irq+0x23/0x26 [ 2394.831858] cmd_status_err+0x55/0x110 [mlx5_core] [ 2394.833020] mlx5_access_reg+0xe7/0x150 [mlx5_core] [ 2394.834175] mlx5_query_port_ptys+0x78/0xa0 [mlx5_core] [ 2394.835337] mlx5e_ethtool_get_link_ksettings+0x74/0x590 [mlx5_core] [ 2394.836454] ? kmem_cache_alloc_trace+0x140/0x1c0 [ 2394.837562] __rh_call_get_link_ksettings+0x33/0x100 [ 2394.838663] ? __rtnl_unlock+0x25/0x50 [ 2394.839755] __ethtool_get_link_ksettings+0x72/0x150 [ 2394.840862] duplex_show+0x6e/0xc0 [ 2394.841963] dev_attr_show+0x1c/0x40 [ 2394.843048] sysfs_kf_seq_show+0x9b/0x100 [ 2394.844123] seq_read+0x153/0x410 [ 2394.845187] vfs_read+0x91/0x140 [ 2394.846226] ksys_read+0x4f/0xb0 [ 2394.847234] do_syscall_64+0x5b/0x1a0 [ 2394.848228] entry_SYSCALL_64_after_hwframe+0x65/0xca

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/ddf458641a511e7df…
	https://git.kernel.org/stable/c/da2e552b469a0cd13…

Impacted products

Vendor

Product

Version

Linux

Affected: 34f46ae0d4b38e83cfb26fb6f06b5b5efea47fdc , < ddf458641a511e7dff19f3bf0cbbc5dd9fe08ce5 (git)
Affected: 34f46ae0d4b38e83cfb26fb6f06b5b5efea47fdc , < da2e552b469a0cd130ff70a88ccc4139da428a65 (git)

Linux

Affected: 5.18
Unaffected: 0 , < 5.18 (semver)
Unaffected: 6.1.7 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
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        "metrics": [
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              "content": {
                "id": "CVE-2022-48884",
                "options": [
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                  },
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:04:45.615051Z",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/cmd.c",
            "include/linux/mlx5/driver.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "da2e552b469a0cd130ff70a88ccc4139da428a65",
              "status": "affected",
              "version": "34f46ae0d4b38e83cfb26fb6f06b5b5efea47fdc",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/mellanox/mlx5/core/cmd.c",
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
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            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.7",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix command stats access after free\n\nCommand may fail while driver is reloading and can\u0027t accept FW commands\ntill command interface is reinitialized. Such command failure is being\nlogged to command stats. This results in NULL pointer access as command\nstats structure is being freed and reallocated during mlx5 devlink\nreload (see kernel log below).\n\nFix it by making command stats statically allocated on driver probe.\n\nKernel log:\n[ 2394.808802] BUG: unable to handle kernel paging request at 000000000002a9c0\n[ 2394.810610] PGD 0 P4D 0\n[ 2394.811811] Oops: 0002 [#1] SMP NOPTI\n...\n[ 2394.815482] RIP: 0010:native_queued_spin_lock_slowpath+0x183/0x1d0\n...\n[ 2394.829505] Call Trace:\n[ 2394.830667]  _raw_spin_lock_irq+0x23/0x26\n[ 2394.831858]  cmd_status_err+0x55/0x110 [mlx5_core]\n[ 2394.833020]  mlx5_access_reg+0xe7/0x150 [mlx5_core]\n[ 2394.834175]  mlx5_query_port_ptys+0x78/0xa0 [mlx5_core]\n[ 2394.835337]  mlx5e_ethtool_get_link_ksettings+0x74/0x590 [mlx5_core]\n[ 2394.836454]  ? kmem_cache_alloc_trace+0x140/0x1c0\n[ 2394.837562]  __rh_call_get_link_ksettings+0x33/0x100\n[ 2394.838663]  ? __rtnl_unlock+0x25/0x50\n[ 2394.839755]  __ethtool_get_link_ksettings+0x72/0x150\n[ 2394.840862]  duplex_show+0x6e/0xc0\n[ 2394.841963]  dev_attr_show+0x1c/0x40\n[ 2394.843048]  sysfs_kf_seq_show+0x9b/0x100\n[ 2394.844123]  seq_read+0x153/0x410\n[ 2394.845187]  vfs_read+0x91/0x140\n[ 2394.846226]  ksys_read+0x4f/0xb0\n[ 2394.847234]  do_syscall_64+0x5b/0x1a0\n[ 2394.848228]  entry_SYSCALL_64_after_hwframe+0x65/0xca"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:25:27.061Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
        {
          "url": "https://git.kernel.org/stable/c/ddf458641a511e7dff19f3bf0cbbc5dd9fe08ce5"
        },
        {
          "url": "https://git.kernel.org/stable/c/da2e552b469a0cd130ff70a88ccc4139da428a65"
        }
      ],
      "title": "net/mlx5: Fix command stats access after free",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48884",
    "datePublished": "2024-08-21T06:10:15.857Z",
    "dateReserved": "2024-07-16T11:38:08.925Z",
    "dateUpdated": "2025-05-04T08:25:27.061Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

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.

Action not permitted

GHSA-6VHV-FV5R-VFG6

CVE-2022-48884 (GCVE-0-2022-48884)

Tags

Sightings

Nomenclature