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CVE-2026-53243 rseq: Fix using an uninitialized stack variable in rseq_exit_user_update()

🗓️ 25 Jun 2026 08:39:37Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Fix uninitialized stack variable in rseq_exit_user_update by moving node_id assignment.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-53243
25 Jun 202608:39
attackerkb
CVE
CVE-2026-53243
25 Jun 202608:39
cve
Debian CVE
CVE-2026-53243
25 Jun 202608:39
debiancve
EUVD
EUVD-2026-39194
25 Jun 202608:39
euvd
NVD
CVE-2026-53243
25 Jun 202609:16
nvd
Positive Technologies
PT-2026-52338
25 Jun 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/rseq_entry.h"
    ],
    "versions": [
      {
        "version": "d242126fd21ab8f1631fdbc8589e43a9d4229f3b",
        "lessThan": "e12d20a63b61aaf9de4772effccf42cc9a003e58",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "82f572449cfe75f12ea985986da60e11f308f77d",
        "lessThan": "6d99479799c69c3cb588fcda19c81d8f61d64ecd",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "include/linux/rseq_entry.h"
    ],
    "versions": [
      {
        "version": "7.0.10",
        "lessThan": "7.0.13",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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