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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-2024-56694" ,
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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\nbpf: fix recursive lock when verdict program return SK_PASS\n\nWhen the stream_verdict program returns SK_PASS, it places the received skb\ninto its own receive queue, but a recursive lock eventually occurs, leading\nto an operating system deadlock. This issue has been present since v6.9.\n\n'''\nsk_psock_strp_data_ready\n write_lock_bh(&sk->sk_callback_lock)\n strp_data_ready\n strp_read_sock\n read_sock -> tcp_read_sock\n strp_recv\n cb.rcv_msg -> sk_psock_strp_read\n # now stream_verdict return SK_PASS without peer sock assign\n __SK_PASS = sk_psock_map_verd(SK_PASS, NULL)\n sk_psock_verdict_apply\n sk_psock_skb_ingress_self\n sk_psock_skb_ingress_enqueue\n sk_psock_data_ready\n read_lock_bh(&sk->sk_callback_lock) <= dead lock\n\n'''\n\nThis topic has been discussed before, but it has not been fixed.\nPrevious discussion:\nhttps://lore.kernel.org/all/6684a5864ec86_403d20898@john.notmuch"
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}
]
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} ,
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"lang" : "eng" ,
"value" : "n/a"
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"vendor_name" : "Linux" ,
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"product_name" : "Linux" ,
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{
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"version_value" : "6694f7acd625ed854bf6342926e771d65dad7f69"
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"version_name" : "39dc9e1442385d6e9be0b6491ee488dddd55ae27" ,
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"version_value" : "da2bc8a0c8f3ac66fdf980fc59936f851a083561"
} ,
{
"version_value" : "not down converted" ,
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"version" : "6.9" ,
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} ,
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"version" : "0" ,
"lessThan" : "6.9" ,
"status" : "unaffected" ,
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{
"version" : "5.4.289" ,
"lessThanOrEqual" : "5.4.*" ,
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{
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"lessThanOrEqual" : "5.15.*" ,
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"version" : "6.1.120" ,
"lessThanOrEqual" : "6.1.*" ,
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{
"url" : "https://git.kernel.org/stable/c/078f7e1521442a55db4bed812a2fbaf02ac33819" ,
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