{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "2111bb970c787b16b002dc726c1d296ce87a00fb"
            },
            {
              "fixed": "a751ccdc6ea9bde154f25a5ba66926f462f96c19"
            },
            {
              "fixed": "1dce4f4bb3c1c02080b1a45bdd2abb2913a6642a"
            },
            {
              "fixed": "ae0265f0a95aaacef59d560a3e1ea36db8be9a52"
            },
            {
              "fixed": "bb09d0e64ecaa0aa0f7d1133a1696ed74dead295"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.12.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72032.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: HWS, fix matcher leak on resize target setup failure\n\nhws_bwc_matcher_move() allocates a replacement matcher before setting it\nas the resize target. If mlx5hws_matcher_resize_set_target() fails, the\nreplacement matcher is not attached anywhere and is leaked.\n\nFix the leak by destroying the replacement matcher before returning from\nthe resize-target failure path.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have a\nmlx5 HWS-capable device to test with, no runtime testing was able to be\nperformed.",
  "id": "CVE-2026-72032",
  "modified": "2026-08-18T03:31:03.287151962Z",
  "published": "2026-08-15T05:51:54.461Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1dce4f4bb3c1c02080b1a45bdd2abb2913a6642a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a751ccdc6ea9bde154f25a5ba66926f462f96c19"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae0265f0a95aaacef59d560a3e1ea36db8be9a52"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb09d0e64ecaa0aa0f7d1133a1696ed74dead295"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72032.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72032"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "net/mlx5: HWS, fix matcher leak on resize target setup failure"
}