Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 취약점
In the Linux kernel, the following vulnerability has been resolved: bpf: Free reuseport cBPF prog after RCU grace period. Eulgyu Kim reported the splat below with a repro. [0] The repro sets up a UDP reuseport group with a cBPF prog and replaces it with a new one while another thread is sending a UDP packet to the group. The reuseport prog is freed by sk_reuseport_prog_free(). bpf_prog_put() is called for "e"BPF prog to destruct through multiple stages while cBPF prog is freed immediately by bpf_release_orig_filter() and bpf_prog_free(). If a reuseport prog is detached from the setsockopt()...
In the Linux kernel, the following vulnerability has been resolved: bpf: Free reuseport cBPF prog after RCU grace period. Eulgyu Kim reported the splat below with a repro. [0] The repro sets up a UDP reuseport group with a cBPF prog and replaces it with a new one while another thread is sending a UDP packet to the group. The reuseport prog is freed by sk_reuseport_prog_free(). bpf_prog_put() is called for "e"BPF prog to destruct through multiple stages while cBPF prog is freed immediately by bpf_release_orig_filter() and bpf_prog_free(). If a reuseport prog is detached from the setsockopt()...
영향 제품·버전
제품 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6
영향 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 08264d5bba0bdd3a79bc2984fee09286aba0c4eb, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < fec41484e7c2aa7ded44c541bba98872be937754, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < c3e3fddda6b5d9ba505d218b4055e7d8a282ac57, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < f8b8f1d4bb76098e87b8269a0631019648330e6d, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 298db6167f81e9c470a57cf652e4e47757b4293e, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 87dfb977bdb6eaa47e9993a34e18f44970f88b1f, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 90e47dc5c572d1c73971ac51c7428803f42b78eb, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 18fc650ccd7fe3376eca89203668cfb8268f60df, >= 4.5, >= 4.5 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.1.176, >= 6.2 < 6.6.143, >= 6.7 < 6.12.94, >= 6.13 < 6.18.36, >= 6.19 < 7.0.13, 7.1
수정 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13
Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6의 현재 전체 버전이 공식 영향 범위(Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 08264d5bba0bdd3a79bc2984fee09286aba0c4eb, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < fec41484e7c2aa7ded44c541bba98872be937754, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < c3e3fddda6b5d9ba505d218b4055e7d8a282ac57, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < f8b8f1d4bb76098e87b8269a0631019648330e6d, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 298db6167f81e9c470a57cf652e4e47757b4293e, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 87dfb977bdb6eaa47e9993a34e18f44970f88b1f, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 90e47dc5c572d1c73971ac51c7428803f42b78eb, >= 538950a1b7527a0a52ccd9337e3fcd304f027f13 < 18fc650ccd7fe3376eca89203668cfb8268f60df, >= 4.5, >= 4.5 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.1.176, >= 6.2 < 6.6.143, >= 6.7 < 6.12.94, >= 6.13 < 6.18.36, >= 6.19 < 7.0.13, 7.1)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0.13 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
