CVE-2025-71116
CriticalCVSS 9.1Exploitation Probability (EPSS)
Low risk24th percentile - higher than 24% of all known CVEs
Summary
In the Linux kernel, the libceph decode_pool() function lacked proper bounds checking when decoding a corrupted OSD map. A maliciously crafted map can lead to out-of-bounds memory reads.
Risk Assessment
An attacker could exploit this vulnerability to read sensitive kernel memory data or cause a system crash.
Recommendation
Apply the Linux kernel patch that adds explicit bounds checks for each decoded field in decode_pool().
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: libceph: make decode_pool() more resilient against corrupted osdmaps If the osdmap is (maliciously) corrupted such that the encoded length of ceph_pg_pool envelope is less than what is expected for a particular encoding version, out-of-bounds reads may ensue because the only bounds check that is there is based on that length value. This patch adds explicit bounds checks for each field that is decoded or skipped.