Intel

CVE-2026-64370

Linux kernel (GCP) vulnerabilities

mediumEPSS 0.1 %

Beschreibung

Im Linux-Kernel wurde die folgende Schwachstelle behoben: posix-cpu-timers: Behebung des pid-Referenzlecks im Fehlerpfad von do_cpu_nanosleep() In do_cpu_nanosleep() nimmt posix_cpu_timer_create() eine pid-Referenz über get_pid() entgegen und speichert sie in timer.it.cpu.pid. Wenn der anschließende Aufruf von posix_cpu_timer_set() fehlschlägt, kehrt die Funktion sofort zurück, ohne posix_cpu_timer_del() aufzurufen, um die pid-Referenz freizugeben, was zu einem Leck führt. Dies wird behoben, indem posix_cpu_timer_del() vor dem Unlock-and-Return im Fehlerpfad aufgerufen wird, konsistent mit den anderen Ausgangspfaden in derselben Funktion.

Quelle: UBUNTU_USNSIEMENS_ADVISORYUBUNTU_USNUBUNTU_USNBSIBSI_CSAFNVDCVELISTV5MSRC

Metriken

Severity
medium
Priority-Score
231.31
KEV-Status
—
Exploit-Reife
kein öffentlicher PoC bekannt
XIEM Effective CVSS
5.5
Quelle: nvd-v3
CVSS v3
5.5
CVSS v4
—
EPSS-Perzentil
2.5 %
Niedrig — CVE gehört zu den unteren 10 % der heute bewerteten CVEs.
EPSS-Score
0.1 %
Niedrig — Modell schätzt < 1 % Ausnutzungs-Wahrscheinlichkeit.
Veröffentlicht
2026-09-07 09:05 UTC
CWE
—

Re-Analyse & Statuswechsel

Chronologie der NVD-Audit-Events für diese CVE — Reanalyses, CVSS-Updates, CPE-Diffs.

  1. Initial Analysis2026-09-08 15:23 UTC· nvd@nist.gov
    • CVSS V3.1: AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    • CWE: NVD-CWE-Other
    • CPE Configuration: OR *cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.212 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.178 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.145 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.96 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.39 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.12.1 up to (excluding) 5.10.261 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.1.4
    • Reference Type: kernel.org: https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189da Types: Patch
  2. CVE Modified2026-09-08 09:18 UTC· 416baaa9-dc9f-4396-8d5f-8c081fb06d67
    • Reference: https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189da
    • Reference: https://git.kernel.org/stable/c/87bd2ad568e15b90d5f7d4bcd70342d05dad649c
    • Reference: https://git.kernel.org/stable/c/8a270b1258797f61b61da44f8bfd41a581b5c85b
    • Reference: https://git.kernel.org/stable/c/8f06363446c5d043c9a7c008b250040e9de98cf9
  3. CVE Modified2026-09-08 09:18 UTC· 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
    • Affected: New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/64xxx/CVE-2026-64370.json">CVE-2026-64370</a>
    • Reference: https://cert-portal.siemens.com/productcert/html/ssa-019113.html
  4. CVE Modified2026-08-17 05:17 UTC· 416baaa9-dc9f-4396-8d5f-8c081fb06d67
    • Affected: Linux, Linux → Linux, Linux
  5. New CVE Received2026-07-25 10:17 UTC· 416baaa9-dc9f-4396-8d5f-8c081fb06d67
    • Affected: Linux, Linux
    • Description: In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path In do_cpu_nanosleep(), posix_cpu_timer_create() takes a pid reference via get_pid() and stores it in timer.it.cpu.pid. If the subsequent posix_cpu_timer_set() call fails, the function returns immediately without calling posix_cpu_timer_del() to release the pid reference, causing a leak. Fix it by calling posix_cpu_timer_del() before the unlock-and-return on the error path, consistent with the other exit paths in the same function.
    • Reference: https://git.kernel.org/stable/c/7776f9226e99eb49d97492b0b445027cfcb189da
    • Reference: https://git.kernel.org/stable/c/87bd2ad568e15b90d5f7d4bcd70342d05dad649c

Betroffene Betriebssysteme

  • linux

    redhat / enterprise_linux10.0

  • linux

    redhat / enterprise_linux7.0

  • linux

    redhat / enterprise_linux8.0

  • linux

    redhat / enterprise_linux9.0

  • linux

    ubuntu / linux-aws-6.8jammy

  • linux

    ubuntu / linux-azureresolute

  • linux

    ubuntu / linux-azuretrusty

  • linux

    ubuntu / linux-azurexenial

  • linux

    ubuntu / linux-azure-4.15bionic

  • linux

    ubuntu / linux-azure-5.4bionic

  • linux

    ubuntu / linux-azure-fdenoble

  • linux

    ubuntu / linux-azure-fderesolute

  • linux

    ubuntu / linux-azure-fde-6.8jammy

  • linux

    ubuntu / linux-azure-fipsbionic

  • linux

    ubuntu / linux-azure-fipsfocal

  • linux

    ubuntu / linux-azure-fipsnoble

  • linux

    ubuntu / linux-fipsjammy

  • linux

    ubuntu / linux-gcp-7.0noble

  • linux

    ubuntu / linux-gkejammy

  • linux

    ubuntu / linux-nvidia-tegranoble

  • linux

    ubuntu / linux-raspinoble

  • linux

    ubuntu / linux-raspi-realtimenoble

  • linux

    linux / linux_kernel2.6.12

  • linux

    linux / linux_kernel2.6.15

Quellen & Referenzen

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IDCVE-2026-64370
Linux kernel (GCP) vulnerabilities — CVE-2026-64370 | NEOSEC Intel