{"id":"CVE-2026-98222","published":"2026-10-06T09:18:09.153","lastModified":"2026-10-06T09:18:09.153","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKEYS: encrypted: fix integer overflow of datablob_len\n\nencrypted_key_alloc() stores datablob_len in a u16. It is computed from\nmultiple string and payload lengths. If the result exceeds U16_MAX, the\nassignment truncates the allocation size. KASAN reports a 32760-byte\nslab-out-of-bounds write when __ekey_init() copies the master key\ndescription into the undersized buffer.\n\nThe total payload length stored in key->datalen is also a u16. Use\ncheck_add_overflow() to reject values that do not fit either destination,\nand use kzalloc_flex() for the flexible-array allocation.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/1e720f63dbafc093a8f5d519f05b67724993edd4","tags":[]},{"url":"https://git.kernel.org/stable/c/8697c431e297eb0d0ab13dda6bc172b48a34f05c","tags":[]},{"url":"https://git.kernel.org/stable/c/a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0","tags":[]},{"url":"https://git.kernel.org/stable/c/cca38f2102a4cd35eda8d48950df4817b4b24757","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}