CVE-2026-52955

A flaw was found in the libceph component of the Linux kernel. A remote attacker could send a specially crafted CEPHMSGOSDMAP message where two internal fields, alg and b-alg, contain differing bucket algorithm values. This discrepancy can lead to an out-of-bounds memory access during processing ...

CVE-2026-52955

The CVE-2026-52955 vulnerability affects the Linux kernel’s libceph crush_decode(). A CEPH_MSG_OSD_MAP containing a crush map with at least one bucket could have two bucket algorithm fields (alg and b->alg) that differ, leading to potential out-of-bounds access during allocation or destruction...