{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/linux/rseq_entry.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "8bbf4405050bc4f98be68082a20efa081ea8ad9b",
              "status": "affected",
              "version": "15dd3a9488557d3e6ebcecacab79f4e56b69ab54",
              "versionType": "git"
            },
            {
              "lessThan": "ada54c2ba652348c590d1ace6a2f4ff77cbbf809",
              "status": "affected",
              "version": "15dd3a9488557d3e6ebcecacab79f4e56b69ab54",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/linux/rseq_entry.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "lessThan": "7.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.10",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "7.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrseq: Prevent hard lockup on granted time slice extension\n\n__exit_to_user_mode_loop() invokes rseq_grant_timeslice_extension() with\ninterrupts enabled. If the extension is granted it invokes\nhrtimer_rearm_deferred_tif() to ensure that a pending deferred hrtimer\nrearm is handled before exiting to user space.\n\nThough this invokes __hrtimer_rearm_deferred() which expects to be invoked\nwith interrupts disabled as it takes hrtimer_cpu_base::lock with\nraw_spin_lock(). That\u0027s a livelock waiting to happen and caught by lockdep:\n\n    WARNING: ./include/linux/hrtimer_rearm.h:17 at irqentry_exit, CPU#1: slice_test\n    WARNING: inconsistent lock state\n    inconsistent {IN-HARDIRQ-W} -\u003e {HARDIRQ-ON-W} usage.\n\nPrevent this by disabling interrupts around the invocation of\nhrtimer_rearm_deferred_tif() in rseq_grant_timeslice_extension().\n\n[ tglx: Massaged change log ]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-26T14:36:57.763Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8bbf4405050bc4f98be68082a20efa081ea8ad9b"
        },
        {
          "url": "https://git.kernel.org/stable/c/ada54c2ba652348c590d1ace6a2f4ff77cbbf809"
        }
      ],
      "title": "rseq: Prevent hard lockup on granted time slice extension",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74749",
    "datePublished": "2026-08-26T14:36:57.763Z",
    "dateReserved": "2026-08-15T05:44:03.931Z",
    "dateUpdated": "2026-08-26T14:36:57.763Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}