nvmet: fix a memory leak in nvmet_auth_set_key

{
  "id": "874072b7bf7e07fc6932ff7a358fb242af9bc22e62c86de1c0fff17352f094e5",
  "url": "https://osv.dev/vulnerability/CVE-2022-49807",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nvmet: fix a memory leak in nvmet_auth_set_key",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nvmet: fix a memory leak in nvmet_auth_set_key When changing dhchap secrets we need to release the old secrets as well. kmemleak complaint: -- unreferenced object 0xffff8c7f44ed8180 (size 64): comm \"check\", pid 7304, jiffies 4295686133 (age 72034.246s) hex dump (first 32 bytes): 44 48 48 43 2d 31 3a 30 30 3a 4c 64 4c 4f 64 71 DHHC-1:00:LdLOdq 79 56 69 67 77 48 55 32 6d 5a 59 4c 7a 35 59 38 yVigwHU2mZYLz5Y8 backtrace: [<00000000b6fc5071>] kstrdup+0x2e/0x60 [<00000000f0f4633f>] 0xffffffffc0e07ee6 [<0000000053006c05>] 0xffffffffc0dff783 [<00000000419ae922>] configfs_write_iter+0xb1/0x120 [<000000008183c424>] vfs_write+0x2be/0x3c0 [<000000009005a2a5>] ksys_write+0x5f/0xe0 [<00000000cd495c89>] do_syscall_64+0x38/0x90 [<00000000f2a84ac5>] entry_SYSCALL_64_after_hwframe+0x63/0xcd",
    "evidence": "osv:CVE-2022-49807",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49807",
      "aliases": [
        "CVE-2022-49807"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "db1312dd95488b5e6ff362ff66fcf953a46b1821"
                },
                {
                  "fixed": "65710ea51d4a185592c7b14c9e33d0c4a364f074"
                },
                {
                  "fixed": "0a52566279b4ee65ecd2503d7b7342851f84755c"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49807.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.0.0"
                },
                {
                  "fixed": "6.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49807.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:25.987169718Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0a52566279b4ee65ecd2503d7b7342851f84755c",
        "https://git.kernel.org/stable/c/65710ea51d4a185592c7b14c9e33d0c4a364f074",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49807.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49807",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49807.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49807",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 492222,
  "published_at": "2025-05-01T14:09:33.492+00:00"
}