CVE-2023-51780 An issue was discovered in the Linux kernel before 6.6.8. do_vcc_ioctl in net/atm/ioctl.c has a use-after-free because of a vcc_recvmsg race condition.

Api.Msrc.Microsoft • February 18, 2026

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Multiple Use-After-Free Vulnerabilities in Linux Kernel Discovered Three use-after-free vulnerabilities have been identified in the Linux kernel, affecting versions prior to 6.6.8 and 6.7.1. CVE-2023-51780 and CVE-2023-51781 were published on December 25, 2023, while CVE-2024-23848 was published on January 23, 2024. These vulnerabilities are related to race conditions in specific kernel functions. 3 sources 37

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