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{
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"data_type" : "CVE" ,
"data_format" : "MITRE" ,
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"ID" : "CVE-2024-36971" ,
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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\nnet: fix __dst_negative_advice() race\n\n__dst_negative_advice() does not enforce proper RCU rules when\nsk->dst_cache must be cleared, leading to possible UAF.\n\nRCU rules are that we must first clear sk->sk_dst_cache,\nthen call dst_release(old_dst).\n\nNote that sk_dst_reset(sk) is implementing this protocol correctly,\nwhile __dst_negative_advice() uses the wrong order.\n\nGiven that ip6_negative_advice() has special logic\nagainst RTF_CACHE, this means each of the three ->negative_advice()\nexisting methods must perform the sk_dst_reset() themselves.\n\nNote the check against NULL dst is centralized in\n__dst_negative_advice(), there is no need to duplicate\nit in various callbacks.\n\nMany thanks to Clement Lecigne for tracking this issue.\n\nThis old bug became visible after the blamed commit, using UDP sockets."
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"description" : [
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"lang" : "eng" ,
"value" : "n/a"
}
]
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}
]
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} ,
"affects" : {
"vendor" : {
"vendor_data" : [
{
"vendor_name" : "Linux" ,
"product" : {
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"product_name" : "Linux" ,
"version" : {
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"version_affected" : "<" ,
"version_name" : "a87cb3e48ee8" ,
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"version_value" : "051c0bde9f04"
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} ,
{
"version_value" : "not down converted" ,
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"versions" : [
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"version" : "4.6" ,
"status" : "affected"
} ,
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"version" : "0" ,
"lessThan" : "4.6" ,
"status" : "unaffected" ,
"versionType" : "custom"
} ,
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{
"version" : "4.19.316" ,
"lessThanOrEqual" : "4.19.*" ,
"status" : "unaffected" ,
"versionType" : "custom"
} ,
{
"version" : "5.4.278" ,
"lessThanOrEqual" : "5.4.*" ,
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{
"version" : "5.15.161" ,
"lessThanOrEqual" : "5.15.*" ,
"status" : "unaffected" ,
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} ,
{
"version" : "6.1.94" ,
"lessThanOrEqual" : "6.1.*" ,
"status" : "unaffected" ,
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"version" : "6.6.34" ,
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} ,
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{
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} ,
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{
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"version" : "6.10" ,
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"lessThanOrEqual" : "*" ,
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"references" : {
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{
"url" : "https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/051c0bde9f0450a2ec3d62a86d2a0d2fad117f13"
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"url" : "https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72" ,
"refsource" : "MISC" ,
"name" : "https://git.kernel.org/stable/c/db0082825037794c5dba9959c9de13ca34cc5e72"
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{
"url" : "https://git.kernel.org/stable/c/2295a7ef5c8c49241bff769e7826ef2582e532a6" ,
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"name" : "https://git.kernel.org/stable/c/eacb8b195579c174a6d3e12a9690b206eb7f28cf"
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"name" : "https://git.kernel.org/stable/c/81dd3c82a456b0015461754be7cb2693991421b4"
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{
"url" : "https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc" ,
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"name" : "https://git.kernel.org/stable/c/b8af8e6118a6605f0e495a58d591ca94a85a50fc"
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{
"url" : "https://git.kernel.org/stable/c/92f1655aa2b2294d0b49925f3b875a634bd3b59e" ,
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