CVE - CVE-2024-56694

CVE-ID
CVE-2024-56694	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: fix recursive lock when verdict program return SK_PASS When the stream_verdict program returns SK_PASS, it places the received skb into its own receive queue, but a recursive lock eventually occurs, leading to an operating system deadlock. This issue has been present since v6.9. ''' sk_psock_strp_data_ready write_lock_bh(&sk->sk_callback_lock) strp_data_ready strp_read_sock read_sock -> tcp_read_sock strp_recv cb.rcv_msg -> sk_psock_strp_read # now stream_verdict return SK_PASS without peer sock assign __SK_PASS = sk_psock_map_verd(SK_PASS, NULL) sk_psock_verdict_apply sk_psock_skb_ingress_self sk_psock_skb_ingress_enqueue sk_psock_data_ready read_lock_bh(&sk->sk_callback_lock) <= dead lock ''' This topic has been discussed before, but it has not been fixed. Previous discussion: https://lore.kernel.org/all/6684a5864ec86_403d20898@john.notmuch
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72 URL:https://git.kernel.org/stable/c/01f1b88acfd79103da0610b45471f6c88ea98d72 MISC:https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578 URL:https://git.kernel.org/stable/c/386efa339e08563dd33e83bc951aea5d407fe578 MISC:https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69 URL:https://git.kernel.org/stable/c/6694f7acd625ed854bf6342926e771d65dad7f69 MISC:https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d URL:https://git.kernel.org/stable/c/8ca2a1eeadf09862190b2810697702d803ceef2d MISC:https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561 URL:https://git.kernel.org/stable/c/da2bc8a0c8f3ac66fdf980fc59936f851a083561 MISC:https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05 URL:https://git.kernel.org/stable/c/f84c5ef6ca23cc2f72f3b830d74f67944684bb05
Assigning CNA
kernel.org
Date Record Created
20241227	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20241227)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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