CVE-2026-74344 bpf: Clear rb node linkage when freeing bpf_rb_root

In the Linux kernel, the following vulnerability has been resolved: bpf: Clear rb node linkage when freeing bpfrbroot bpfrbrootfree detaches the root by copying the current rbrootcached and then replacing the live root with RBROOTCACHED. It then walks the copied root and drops each object contain...

CVE-2026-74344

In the Linux kernel, the following vulnerability has been resolved: bpf: Clear rb node linkage when freeing bpfrbroot bpfrbrootfree detaches the root by copying the current rbrootcached and then replacing the live root with RBROOTCACHED. It then walks the copied root and drops each object contain...

CVE-2026-74344: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Clear rb node linkage when freeing bpfrbroot bpfrbrootfree detaches the root by copying the current rbrootcached and then replacing the live root with RBROOTCACHED. It then walks the copied root and drops each object contain...

Linux Kernel Security Vulnerabilities

The Linux kernel version 6.3 contains security vulnerabilities. These vulnerabilities stem from the function bpfrbrootfree, which does not clear the rb node links when releasing the root. As a result, residual owner pointers and expired rb tree links remain, potentially leading to reuse after...