UBUNTU-CVE-2026-80961

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: validate kset keynum and intra-segment bounds Two more fields decoded from the cache device go unbounded. The kset keynum drives cacheksetcrc and the replay loop in cachereplay, the writeback worker and the GC worker,...

CVE-2026-80961

CVE-2026-80961 affects the dm-pcache (Device-Mapper Persistent Cache) component of the Linux kernel . Two fields decoded from the cache device are left unbounded: the kset key_num , which can exceed the PCACHE_KSET_KEYS_MAX buffer before the CRC comparison, and the key's intra-segment offset and ...

PT-2026-90091

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read issue exists in the dm-pcache component where two fields decoded from the cache device are not properly bounded. The key num field, which drives cache kset crc and...

GHSA-M974-XJ4J-7QV5 Boxo bitswap/server: DOS unbounded persistent memory leak

Impact An attacker is able allocate arbitrarily many bytes in the Bitswap server by sending many WANTBLOCK and or WANTHAVE requests which are queued in an unbounded queue, with allocations that persist even if the connection is closed. This affects users accepting untrusted connections with the...