CVE-2023-52446

Summary

CVE-2023-52446 is a vulnerability in the Linux kernel that affects the bpf subsystem. It involves a race condition between the functions btf_put() and map_free(). A successful exploit of this vulnerability can lead to a use-after-free condition, resulting in a kasan error. This error was identified when running the `./test_progs -j` command on a local virtual machine with the latest kernel. The error occurs at the bpf_rb_root_free+0x1f8/0x2b0 address, where a kasan function is called, followed by a use-after-free load. This vulnerability can potentially lead to memory corruption and system instability.

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