{"id":"CVE-2026-98868","published":"2026-10-18T16:17:41.320","lastModified":"2026-10-19T10:19:50.843","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm-pcache: reject a kset that overruns its segment\n\ncache_replay(), the writeback worker and the GC worker read a kset of\nget_kset_onmedia_size() bytes and advance the position by it. A forged\nkey_num makes that size exceed the segment's remaining space, so the\nadvance walks past the segment and trips the cache_pos_advance() BUG_ON.\n\nReject a kset whose on-media size exceeds cache_seg_remain() before use.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/01a700e9278da5706c865b9ca3ae70fdb7b4531d","tags":[]},{"url":"https://git.kernel.org/stable/c/7ac1f10f987a2ffae4aecf0e2ceca8f552b665cb","tags":[]},{"url":"https://git.kernel.org/stable/c/96e2863b1f81ea61b8d8d5d5a45d3b4c018f8e10","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}