جزئیات آسیب‌پذیری

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In the Linux kernel, the following vulnerability has been resolved: selinux: fix BPF token permission checks Avoid multiple lookups of the bpffs creator SID using the token's file descriptor when the same information can be found via the resolved path/dentry (in selinux_bpf_token_create()) or the token itself (in selinux_bpf_map_create() and selinux_bpf_prog_load()). Not only does this simplify the code, it avoids potential TOCTOU issues if the user changes the token file descriptor passed into the kernel.

• https://git.kernel.org/stable/c/e1ef306ba20eb13099ca4463527890df67619405
• https://git.kernel.org/stable/c/77d499e61d36e883a6ad1f10afe05f556aa7e0cc