CVE-2024-40940 net/mlx5: Fix tainted pointer delete is case of flow rules creation fail

2024-07-1212:25:15

Linux

www.cve.org

linux kernel

net/mlx5

flow rules

creation

failure

pointer delete

bug fix

svace

EPSS

Percentile

15.9%

JSON

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

net/mlx5: Fix tainted pointer delete is case of flow rules creation fail

In case of flow rule creation fail in mlx5_lag_create_port_sel_table(),
instead of previously created rules, the tainted pointer is deleted
deveral times.
Fix this bug by using correct flow rules pointers.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c"
    ],
    "versions": [
      {
        "version": "352899f384d4",
        "lessThan": "531eab2da27d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "352899f384d4",
        "lessThan": "d857df86837a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "352899f384d4",
        "lessThan": "a03a3fa12769",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "352899f384d4",
        "lessThan": "229bedbf62b1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c"
    ],
    "versions": [
      {
        "version": "5.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.19",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.95",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.35",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.6",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]