cve-2024-40944
Vulnerability from cvelistv5
Published
2024-07-12 12:25
Modified
2024-11-05 09:33
Severity ?
Summary
x86/kexec: Fix bug with call depth tracking
Impacted products
Vendor Product Version
Linux Linux Version: 6.2
Show details on NVD website


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                "id": "CVE-2024-40944",
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                  },
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                    "Automatable": "no"
                  },
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          "product": "Linux",
          "programFiles": [
            "arch/x86/kernel/machine_kexec_64.c"
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      "descriptions": [
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          "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. ]"
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      "title": "x86/kexec: Fix bug with call depth tracking",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-40944",
    "datePublished": "2024-07-12T12:25:18.490Z",
    "dateReserved": "2024-07-12T12:17:45.588Z",
    "dateUpdated": "2024-11-05T09:33:40.301Z",
    "state": "PUBLISHED"
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-40944\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:16.753\",\"lastModified\":\"2024-11-21T09:31:55.347\",\"vulnStatus\":\"Awaiting Analysis\",\"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. ]\"}],\"metrics\":{},\"references\":[{\"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\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"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\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
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