CVE-2026-98868: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: reject a kset that overruns its segment cache_replay(), the writeback worker and the GC worker read a kset of get_kset_onmedia_size() bytes and advance the position by it. A forged key_num makes that size exceed the segment's remaining space, so the advance walks past the segment and trips the cache_pos_advance() BUG_ON. Reject a kset whose on-media size exceeds cache_seg_remain() before use.

Засегнати продукти

• Linux Linux: 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди 01a700e9278da5706c865b9ca3ae70fdb7b4531d; 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди 96e2863b1f81ea61b8d8d5d5a45d3b4c018f8e10; 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 преди 7ac1f10f987a2ffae4aecf0e2ceca8f552b665cb
• Linux Linux: 6.18; преди 6.18; 6.18.52 до 6.18.*; 7.2.10 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98868
• https://nvd.nist.gov/vuln/detail/CVE-2026-98868
• https://git.kernel.org/stable/c/01a700e9278da5706c865b9ca3ae70fdb7b4531d
• https://git.kernel.org/stable/c/96e2863b1f81ea61b8d8d5d5a45d3b4c018f8e10
• https://git.kernel.org/stable/c/7ac1f10f987a2ffae4aecf0e2ceca8f552b665cb