{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "block/blk-cgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9fcf4317384ce6758c3127a6e8914c54cbb9c8cc",
              "status": "affected",
              "version": "9327a865e395a53f67dffac4710beb1d4730495e",
              "versionType": "git"
            },
            {
              "lessThan": "327c428ba79b13e4cc5253333a9d5c0aa5579bdf",
              "status": "affected",
              "version": "9327a865e395a53f67dffac4710beb1d4730495e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "block/blk-cgroup.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.2"
            },
            {
              "lessThan": "7.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.10",
                  "versionStartIncluding": "7.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "7.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-cgroup: save IRQ state in blkg_tryget_closest()\n\nbio_set_dev() associates the bio with a blkg through bio_associate_blkg().\nIf the blkg lookup misses, blkg_tryget_closest() takes q-\u003equeue_lock with\nspin_lock_irq() and releases it with spin_unlock_irq(), which\nunconditionally enables local interrupts.\n\nCallers may call bio_set_dev() with interrupts already disabled, e.g.\ndm-thin\u0027s pool_map() does so while holding pool-\u003elock taken with\nspin_lock_irq().  The nested spin_unlock_irq() then enables interrupts\nwhile pool-\u003elock is still held, so an I/O completion softirq can run on\nthe same CPU, re-acquire pool-\u003elock (thin_endio(), or overwrite_endio()\n-\u003e complete_mapping_preparation()) and deadlock.  lockdep reports this\nas inconsistent SOFTIRQ-ON-W to IN-SOFTIRQ-W usage.\n\nCommit 3a762de55b4e (\"block: save irq state in blkg_lookup_create()\")\nfixed the same problem while the lock lived in blkg_lookup_create(), but\ncommit 9327a865e395 (\"blk-cgroup: don\u0027t nest queue_lock under rcu in\nblkg_lookup_create()\") moved the locking into blkg_tryget_closest() and\nreverted it to spin_lock_irq().\n\nSave and restore the caller\u0027s IRQ state instead."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:26:24.782Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9fcf4317384ce6758c3127a6e8914c54cbb9c8cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/327c428ba79b13e4cc5253333a9d5c0aa5579bdf"
        }
      ],
      "title": "blk-cgroup: save IRQ state in blkg_tryget_closest()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98832",
    "datePublished": "2026-10-18T15:49:36.925Z",
    "dateReserved": "2026-09-25T10:25:14.372Z",
    "dateUpdated": "2026-10-19T09:26:24.782Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}