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CVE-2022-49795

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: rethook: fix a potential memleak in rethook_alloc() In rethook_alloc(), the variable rh is not freed or passed out if handler is NULL, which could lead to a memleak, fix it. [Masami: Add "rethook:" tag to the title.] Acke-by: Masami Hiramatsu (Google) <[email protected]>

Severity
MEDIUM
CVSS score
5.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-05-01 15:16:02.783000
Last modified
2026-11-05 20:17:11.927000
View original CVE JSON
{
  "id": "CVE-2022-49795",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2025-05-01T15:16:02.783",
  "lastModified": "2026-11-05T20:17:11.927",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrethook: fix a potential memleak in rethook_alloc()\n\nIn rethook_alloc(), the variable rh is not freed or passed out\nif handler is NULL, which could lead to a memleak, fix it.\n\n[Masami: Add \"rethook:\" tag to the title.]\n\nAcke-by: Masami Hiramatsu (Google) <[email protected]>"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: rethook: se corrige una posible fuga de memoria en rethook_alloc(). En rethook_alloc(), la variable rh no se libera ni se pasa si el manejador es NULL, lo que podría provocar una fuga de memoria. Corríjalo. [Masami: Añadir la etiqueta \"rethook:\" al título]. Por: Masami Hiramatsu (Google) "
    }
  ],
  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "kernel/trace/rethook.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
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              "versionType": "original_commit_for_fix",
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  ],
  "metrics": {
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          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
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    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-11-05T19:48:10.411995Z",
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          "role": "CISA Coordinator",
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  "weaknesses": [
    {
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  ],
  "configurations": [
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