fkie_cve-2024-40944
Vulnerability from fkie_nvd
Published
2024-07-12 13:15
Modified
2024-11-21 09:31
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to cc_platform_has() triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by load_segments() and GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate. Call cc_platform_has() earlier in the function when GS is still valid. [ bp: Massage. ]
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2cfb464669b645a9b98478b74f2bcea9860dcff1
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93c1800b3799f17375989b0daf76497dd3e80922
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d91ddd05082691e69b30744825d18ae799293258
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/2cfb464669b645a9b98478b74f2bcea9860dcff1
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/93c1800b3799f17375989b0daf76497dd3e80922
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d91ddd05082691e69b30744825d18ae799293258
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/kexec: Fix bug with call depth tracking\n\nThe call to cc_platform_has() triggers a fault and system crash if call depth\ntracking is active because the GS segment has been reset by load_segments() and\nGS_BASE is now 0 but call depth tracking uses per-CPU variables to operate.\n\nCall cc_platform_has() earlier in the function when GS is still valid.\n\n  [ bp: Massage. ]"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: x86/kexec: Correcci\u00f3n de error con el seguimiento de profundidad de llamadas. La llamada a cc_platform_has() desencadena una falla y un bloqueo del sistema si el seguimiento de profundidad de llamadas est\u00e1 activo porque el segmento GS ha sido restablecido por load_segments( ) y GS_BASE ahora es 0, pero el seguimiento de profundidad de llamadas utiliza variables por CPU para funcionar. Llame a cc_platform_has() anteriormente en la funci\u00f3n cuando GS a\u00fan sea v\u00e1lido. [pb: Masaje. ]"
    }
  ],
  "id": "CVE-2024-40944",
  "lastModified": "2024-11-21T09:31:55.347",
  "metrics": {},
  "published": "2024-07-12T13:15:16.753",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2cfb464669b645a9b98478b74f2bcea9860dcff1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/93c1800b3799f17375989b0daf76497dd3e80922"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d91ddd05082691e69b30744825d18ae799293258"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/2cfb464669b645a9b98478b74f2bcea9860dcff1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/93c1800b3799f17375989b0daf76497dd3e80922"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://git.kernel.org/stable/c/d91ddd05082691e69b30744825d18ae799293258"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.