Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 취약점
In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer access In the preparation stage of CPU online, if the corresponding the rdp's->nocb_cb_kthread does not exist, will be created, there is a situation where the rdp's rcuop kthreads creation fails, and then de-offload this CPU's rdp, does not assign this CPU's rdp->nocb_cb_kthread pointer, but this rdp's->nocb_gp_rdp and rdp's->rdp_gp->nocb_gp_kthread is still valid. This will cause the subsequent re-offload operation of this offline CPU, which will pass the condit...
In the Linux kernel, the following vulnerability has been resolved: rcu/nocb: Fix possible invalid rdp's->nocb_cb_kthread pointer access In the preparation stage of CPU online, if the corresponding the rdp's->nocb_cb_kthread does not exist, will be created, there is a situation where the rdp's rcuop kthreads creation fails, and then de-offload this CPU's rdp, does not assign this CPU's rdp->nocb_cb_kthread pointer, but this rdp's->nocb_gp_rdp and rdp's->rdp_gp->nocb_gp_kthread is still valid. This will cause the subsequent re-offload operation of this offline CPU, which will pass the condit...
영향 제품·버전
제품 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP의 현재 전체 버전이 공식 영향 범위(Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < b097ae798298885695c339d390b48b4e39619fa7, >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < 3da45ec1e485a1a5ad31fe9ddd467c7ee5ae4ef9, >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < cce3d027227c69e85896af9fbc6fa9af5c68f067, >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < 1c951683a720b17c9ecaad1932bc95b29044611f, >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < 9b5ec8e6b31755288a07b3abeeab8cd38e9d3c9d, >= 3a5761dc025da47960755ac64d9fbf1c32e8cd80 < 1bba3900ca18bdae28d1b9fa10f16a8f8cb2ada1, >= 6.0, >= V3.1.6, >= V3.1.5, < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(6.12.43, 6.15.11, 6.16.2)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 6.12.43, 6.15.11, 6.16.2 기준을 충족하는지 확인합니다. 이어서 유형 미확정 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
