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https://github.com/fkie-cad/nvd-json-data-feeds.git
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41 lines
2.9 KiB
JSON
41 lines
2.9 KiB
JSON
{
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"id": "CVE-2024-44958",
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"published": "2024-09-04T19:15:30.580",
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"lastModified": "2024-09-05T12:53:21.110",
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"vulnStatus": "Awaiting Analysis",
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"cveTags": [],
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched/smt: Fix unbalance sched_smt_present dec/inc\n\nI got the following warn report while doing stress test:\n\njump label: negative count!\nWARNING: CPU: 3 PID: 38 at kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0\nCall Trace:\n <TASK>\n __static_key_slow_dec_cpuslocked+0x16/0x70\n sched_cpu_deactivate+0x26e/0x2a0\n cpuhp_invoke_callback+0x3ad/0x10d0\n cpuhp_thread_fun+0x3f5/0x680\n smpboot_thread_fn+0x56d/0x8d0\n kthread+0x309/0x400\n ret_from_fork+0x41/0x70\n ret_from_fork_asm+0x1b/0x30\n </TASK>\n\nBecause when cpuset_cpu_inactive() fails in sched_cpu_deactivate(),\nthe cpu offline failed, but sched_smt_present is decremented before\ncalling sched_cpu_deactivate(), it leads to unbalanced dec/inc, so\nfix it by incrementing sched_smt_present in the error path."
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},
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{
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"lang": "es",
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sched/smt: Corregir desequilibrio en sched_smt_present dec/inc Recib\u00ed el siguiente informe de advertencia mientras realizaba una prueba de estr\u00e9s: etiqueta de salto: \u00a1recuento negativo! ADVERTENCIA: CPU: 3 PID: 38 en kernel/jump_label.c:263 static_key_slow_try_dec+0x9d/0xb0 Seguimiento de llamadas: __static_key_slow_dec_cpuslocked+0x16/0x70 sched_cpu_deactivate+0x26e/0x2a0 cpuhp_invoke_callback+0x3ad/0x10d0 cpuhp_thread_fun+0x3f5/0x680 smpboot_thread_fn+0x56d/0x8d0 kthread+0x309/0x400 ret_from_fork+0x41/0x70 ret_from_fork_asm+0x1b/0x30 Porque cuando cpuset_cpu_inactive() falla en sched_cpu_deactivate(), la CPU fuera de l\u00ednea fall\u00f3, pero sched_smt_present se decrementa antes de llamar a sched_cpu_deactivate(), esto genera un dec/inc desequilibrado, por lo que debe solucionarlo incrementando sched_smt_present en la ruta de error."
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}
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],
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"metrics": {},
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/2a3548c7ef2e135aee40e7e5e44e7d11b893e7c4",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/2cf7665efe451e48d27953e6b5bc627d518c902b",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/65727331b60197b742089855ac09464c22b96f66",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/d0c87a3c6be10a57aa3463c32c3fc6b2a47c3dab",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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},
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{
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"url": "https://git.kernel.org/stable/c/e22f910a26cc2a3ac9c66b8e935ef2a7dd881117",
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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}
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]
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} |