CVE-2026-90417

{
  "id": "CVE-2026-90417",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-09-17T17:17:46.050",
  "lastModified": "2026-10-30T13:20:52.660",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/cxgb4: Fix dereg_skb leak and double free in write_tpt_entry()\n\nWhen the device is in the fatal error state, write_tpt_entry() returns -EIO\nbefore handing the caller's preallocated skb to the transmit path; its\nallocation-failure returns do the same. c4iw_dereg_mr() ignores the error\nand frees mhp, leaking mhp->dereg_skb. c4iw_get_dma_mr() instead frees the\nskb a second time after dereg_mem() already consumed it, a double free.\n\nMake write_tpt_entry() the sole owner of a non-NULL skb, freeing it on\nevery return preceding handoff to c4iw_ofld_send(): fatal error, tpt and\nstag allocation failure. c4iw_ofld_send() consumes the skb on success and\nerror alike, so drop the redundant kfree_skb() in c4iw_get_dma_mr() after\ndereg_mem()."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "26c6e9bc0b907b880c5d8486291f0452c8227fbe",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "68c1d2c085f205e8a5338bc3d3304f897deca4d9",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "379cf06e6fe34af980064c6ccaf15d8e26ec4a42",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "2fcd26f4680143e9ec477069530548dbe20fce6f",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "6b15fc9bc117fb6597fa1c2cc30284aafe71101c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "0f8ab0b6e91b4d5302ceee5ec12ce54d81297635",
              "lessThan": "373f3716a2de7adc739269ebb4d87e5bf4dc180c",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/infiniband/hw/cxgb4/mem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "4.8",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "4.8",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.191",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.160",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.114",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.57",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.6",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/26c6e9bc0b907b880c5d8486291f0452c8227fbe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2fcd26f4680143e9ec477069530548dbe20fce6f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/373f3716a2de7adc739269ebb4d87e5bf4dc180c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/379cf06e6fe34af980064c6ccaf15d8e26ec4a42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/68c1d2c085f205e8a5338bc3d3304f897deca4d9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6b15fc9bc117fb6597fa1c2cc30284aafe71101c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}