CVE-2025-68177 (GCVE-0-2025-68177)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:42 – Updated: 2026-05-11 21:48
VLAI
Title
cpufreq/longhaul: handle NULL policy in longhaul_exit
Summary
In the Linux kernel, the following vulnerability has been resolved: cpufreq/longhaul: handle NULL policy in longhaul_exit longhaul_exit() was calling cpufreq_cpu_get(0) without checking for a NULL policy pointer. On some systems, this could lead to a NULL dereference and a kernel warning or panic. This patch adds a check using unlikely() and returns early if the policy is NULL. Bugzilla: #219962
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < b02352dd2e6cca98777714cc2a27553191df70db (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 956b56d17a89775e4957bbddefa45cd3c6c71000 (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 55cf586b9556863e3c2a45460aba71bcb2be5bcd (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < fd93e1d71b3b14443092919be12b1abf08de35eb (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 8d6791c480f22d6e9a566eaa77336d3d37c5c591 (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 64adabb6d9d51b7e7c02fe733346a2c4dd738488 (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 809cf2a7794ca4c14c304b349f4c3ae220701ce4 (git)
Affected: b43a7ffbf33be7e4d3b10b7714ee663ea2c52fe2 , < 592532a77b736b5153e0c2e4c74aa50af0a352ab (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.10
Unaffected: 0 , < 3.10 (semver)
Unaffected: 5.4.302 , ≤ 5.4.* (semver)
Unaffected: 5.10.247 , ≤ 5.10.* (semver)
Unaffected: 5.15.197 , ≤ 5.15.* (semver)
Unaffected: 6.1.159 , ≤ 6.1.* (semver)
Unaffected: 6.6.117 , ≤ 6.6.* (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq/longhaul: handle NULL policy in longhaul_exit\n\nlonghaul_exit() was calling cpufreq_cpu_get(0) without checking\nfor a NULL policy pointer. On some systems, this could lead to a\nNULL dereference and a kernel warning or panic.\n\nThis patch adds a check using unlikely() and returns early if the\npolicy is NULL.\n\nBugzilla: #219962"
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          },
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            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad:\n\ncpufreq/longhaul: manejar pol\u00edtica NULL en longhaul_exit\n\nlonghaul_exit() estaba llamando a cpufreq_cpu_get(0) sin comprobar si hab\u00eda un puntero de pol\u00edtica NULL. En algunos sistemas, esto podr\u00eda provocar una desreferencia NULL y una advertencia o p\u00e1nico del kernel.\n\nEste parche a\u00f1ade una comprobaci\u00f3n usando unlikely() y retorna anticipadamente si la pol\u00edtica es NULL.\n\nBugzilla: #219962"
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      "current_release_date": "2026-06-30T10:32:12+00:00",
      "cve": "CVE-2025-68177",
      "id": "CVE-2025-68177",
      "initial_release_date": "2025-12-16T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: cpufreq/longhaul: handle NULL policy in longhaul_exit",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68177.json",
      "version": "3"
    }
  }
}



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