FKIE_CVE-2024-50081

Vulnerability from fkie_nvd - Published: 2024-10-29 01:15 - Updated: 2026-01-11 17:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: blk-mq: setup queue ->tag_set before initializing hctx Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx") needs to check queue mapping via tag set in hctx's cpuhp handler. However, q->tag_set may not be setup yet when the cpuhp handler is enabled, then kernel oops is triggered. Fix the issue by setup queue tag_set before initializing hctx.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.12
linux linux_kernel 6.12
linux linux_kernel 6.12
To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblk-mq: setup queue -\u003etag_set before initializing hctx\n\nCommit 7b815817aa58 (\"blk-mq: add helper for checking if one CPU is mapped to specified hctx\")\nneeds to check queue mapping via tag set in hctx\u0027s cpuhp handler.\n\nHowever, q-\u003etag_set may not be setup yet when the cpuhp handler is\nenabled, then kernel oops is triggered.\n\nFix the issue by setup queue tag_set before initializing hctx."
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: blk-mq: configurar queue -\u0026gt;tag_set antes de inicializar hctx el commit 7b815817aa58 (\"blk-mq: agregar asistente para verificar si una CPU est\u00e1 asignada a hctx especificado\") necesita verificar la asignaci\u00f3n de cola a trav\u00e9s del conjunto de etiquetas en el controlador cpuhp de hctx. Sin embargo, es posible que q-\u0026gt;tag_set a\u00fan no est\u00e9 configurado cuando el controlador cpuhp est\u00e1 habilitado, luego se activa el error del kernel. Solucione el problema configurando queue tag_set antes de inicializar hctx."
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  "id": "CVE-2024-50081",
  "lastModified": "2026-01-11T17:15:51.367",
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