CVE-2024-44996 - Linux Kernel vsock BPF Recursion Vulnerability

CVE ID : CVE-2024-44996
Published : Sept. 4, 2024, 8:15 p.m. | 24 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive ->recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot->recvmsg has been replaced with vsock_bpf_recvmsg(). Thus the following recursiion could happen: vsock_bpf_recvmsg() -> __vsock_recvmsg() -> vsock_connectible_recvmsg() -> prot->recvmsg() -> vsock_bpf_recvmsg() again We need to fix it by calling the original ->recvmsg() without any BPF sockmap logic in __vsock_recvmsg().
Severity: 0.0 | NA
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