CVE-2024-41082
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: nvme-fabrics: use reserved tag for reg read/write command In some scenarios, if too many commands are issued by nvme command in the same time by user tasks, this may exhaust all tags of admin_q. If a reset (nvme reset or IO timeout) occurs before these commands finish, reconnect routine may fail to update nvme regs due to insufficient tags, which will cause kernel hang forever. In order to workaround this issue, maybe we can let reg_read32()/reg_read64()/reg_write32() use reserved tags. This maybe safe for nvmf: 1. For the disable ctrl path, we will not issue connect command 2. For the enable ctrl / fw activate path, since connect and reg_xx() are called serially. So the reserved tags may still be enough while reg_xx() use reserved tags.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2024-07-29 15:15:15.670000
Last modified
2026-10-30 13:17:31.327000
View original CVE JSON
{
"id": "CVE-2024-41082",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-07-29T15:15:15.670",
"lastModified": "2026-10-30T13:17:31.327",
"vulnStatus": "Modified",
"cveTags": [],
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-fabrics: use reserved tag for reg read/write command\n\nIn some scenarios, if too many commands are issued by nvme command in\nthe same time by user tasks, this may exhaust all tags of admin_q. If\na reset (nvme reset or IO timeout) occurs before these commands finish,\nreconnect routine may fail to update nvme regs due to insufficient tags,\nwhich will cause kernel hang forever. In order to workaround this issue,\nmaybe we can let reg_read32()/reg_read64()/reg_write32() use reserved\ntags. This maybe safe for nvmf:\n\n1. For the disable ctrl path, we will not issue connect command\n2. For the enable ctrl / fw activate path, since connect and reg_xx()\n are called serially.\n\nSo the reserved tags may still be enough while reg_xx() use reserved tags."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nvme-fabrics: use etiqueta reservada para el comando de lectura/escritura de registro. En algunos escenarios, si el comando nvme emite demasiados comandos al mismo tiempo por las tareas del usuario, esto puede agotar todos etiquetas de admin_q. Si se produce un reinicio (reinicio de nvme o tiempo de espera de IO) antes de que finalicen estos comandos, es posible que la rutina de reconexión no actualice los registros de nvme debido a etiquetas insuficientes, lo que provocará que el kernel se cuelgue para siempre. Para solucionar este problema, tal vez podamos permitir que reg_read32()/reg_read64()/reg_write32() use etiquetas reservadas. Esto puede ser seguro para nvmf: 1. Para la ruta de activación ctrl/deshabilitar, no emitiremos el comando connect. 2. Para la ruta de activación ctrl/fw enable, ya que connect y reg_xx() se llaman en serie. Por lo tanto, las etiquetas reservadas pueden ser suficientes mientras reg_xx() usa etiquetas reservadas."
}
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"versionType": "original_commit_for_fix",
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"metrics": {
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"type": "Primary",
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"baseSeverity": "MEDIUM",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH"
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"id": "CVE-2024-41082",
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"source": "[email protected]",
"type": "Primary",
"description": [
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"configurations": [
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