CVE-2026-98868None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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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.
Linux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 01a700e9278da5706c865b9ca3ae70fdb7b4531dLinux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 96e2863b1f81ea61b8d8d5d5a45d3b4c018f8e10Linux >= 1d57628ff95b32d5cfa8d8f50e07690c161e9cf0 < 7ac1f10f987a2ffae4aecf0e2ceca8f552b665cbLinux 6.18Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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