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{
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"data_version" : "4.0" ,
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"data_type" : "CVE" ,
"data_format" : "MITRE" ,
"CVE_data_meta" : {
"ID" : "CVE-2024-47748" ,
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"ASSIGNER" : "cve@kernel.org" ,
"STATE" : "PUBLIC"
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} ,
"description" : {
"description_data" : [
{
"lang" : "eng" ,
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"value" : "In the Linux kernel, the following vulnerability has been resolved:\n\nvhost_vdpa: assign irq bypass producer token correctly\n\nWe used to call irq_bypass_unregister_producer() in\nvhost_vdpa_setup_vq_irq() which is problematic as we don't know if the\ntoken pointer is still valid or not.\n\nActually, we use the eventfd_ctx as the token so the life cycle of the\ntoken should be bound to the VHOST_SET_VRING_CALL instead of\nvhost_vdpa_setup_vq_irq() which could be called by set_status().\n\nFixing this by setting up irq bypass producer's token when handling\nVHOST_SET_VRING_CALL and un-registering the producer before calling\nvhost_vring_ioctl() to prevent a possible use after free as eventfd\ncould have been released in vhost_vring_ioctl(). And such registering\nand unregistering will only be done if DRIVER_OK is set."
}
]
} ,
"problemtype" : {
"problemtype_data" : [
{
"description" : [
{
"lang" : "eng" ,
"value" : "n/a"
}
]
}
]
} ,
"affects" : {
"vendor" : {
"vendor_data" : [
{
"vendor_name" : "Linux" ,
"product" : {
"product_data" : [
{
"product_name" : "Linux" ,
"version" : {
"version_data" : [
{
"version_affected" : "<" ,
"version_name" : "2cf1ba9a4d15" ,
"version_value" : "0c170b1e918b"
} ,
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"versions" : [
{
"version" : "5.9" ,
"status" : "affected"
} ,
{
"version" : "0" ,
"lessThan" : "5.9" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "5.10.227" ,
"lessThanOrEqual" : "5.10.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "5.15.168" ,
"lessThanOrEqual" : "5.15.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "6.1.113" ,
"lessThanOrEqual" : "6.1.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "6.6.54" ,
"lessThanOrEqual" : "6.6.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "6.10.13" ,
"lessThanOrEqual" : "6.10.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
"version" : "6.11.2" ,
"lessThanOrEqual" : "6.11.*" ,
"status" : "unaffected" ,
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"versionType" : "semver"
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} ,
{
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"version" : "6.12" ,
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"lessThanOrEqual" : "*" ,
"status" : "unaffected" ,
"versionType" : "original_commit_for_fix"
}
] ,
"defaultStatus" : "affected"
}
}
]
}
}
]
}
}
]
}
} ,
"references" : {
"reference_data" : [
{
"url" : "https://git.kernel.org/stable/c/0c170b1e918b9afac25e2bbd01eaa2bfc0ece8c0" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/0c170b1e918b9afac25e2bbd01eaa2bfc0ece8c0"
} ,
{
"url" : "https://git.kernel.org/stable/c/927a2580208e0f9b0b47b08f1c802b7233a7ba3c" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/927a2580208e0f9b0b47b08f1c802b7233a7ba3c"
} ,
{
"url" : "https://git.kernel.org/stable/c/ec5f1b54ceb23475049ada6e7a43452cf4df88d1" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/ec5f1b54ceb23475049ada6e7a43452cf4df88d1"
} ,
{
"url" : "https://git.kernel.org/stable/c/ca64edd7ae93402af2596a952e0d94d545e2b9c0" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/ca64edd7ae93402af2596a952e0d94d545e2b9c0"
} ,
{
"url" : "https://git.kernel.org/stable/c/fae9b1776f53aab93ab345bdbf653b991aed717d" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/fae9b1776f53aab93ab345bdbf653b991aed717d"
} ,
{
"url" : "https://git.kernel.org/stable/c/7cf2fb51175cafe01df8c43fa15a06194a59c6e2" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/7cf2fb51175cafe01df8c43fa15a06194a59c6e2"
} ,
{
"url" : "https://git.kernel.org/stable/c/02e9e9366fefe461719da5d173385b6685f70319" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/02e9e9366fefe461719da5d173385b6685f70319"
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}
]
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} ,
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