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| "descriptions": [ |
| { |
| "lang": "en", |
| "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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| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/core/skmsg.c" |
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| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "net/core/skmsg.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.9", |
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| }, |
| { |
| "version": "0", |
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| "status": "unaffected", |
| "versionType": "semver" |
| }, |
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| }, |
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| "versionType": "original_commit_for_fix" |
| } |
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| } |
| ], |
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| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
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| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/078f7e1521442a55db4bed812a2fbaf02ac33819" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/221109ba2127eabd0aa64718543638b58b15df56" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d" |
| } |
| ], |
| "title": "bpf: fix recursive lock when verdict program return SK_PASS", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
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| "cveID": "CVE-2024-56694", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
