점검 대응높음KEV 미등록
CVE-2023-53645
Linux Linux, linux kernel 취약점
In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpf_refcount_acquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpf_refcount series [0], specifically that the BPF program calling bpf_refcount_acquire on some node can always guarantee that the node is alive. In that series, the patch adding failure behavior to rbtree_add and list_push_{front, back} breaks this assumption for non-owning references. Consider the following program: n = bpf_kptr_xchg(&mapval, NULL); /* skip error checking */ bpf_spin_lock(&l); if(bpf_r...
- 대응 우선순위
- 점검
- CVSS
- 7.8
- EPSS
- - 백분위 -
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2025.10.08