CVE-2024-50262 - Linux Kernel BPF Out-of-Bounds Write Vulnerability

CVE ID : CVE-2024-50262
Published : Nov. 9, 2024, 11:15 a.m. | 24 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in trie_get_next_key() trie_get_next_key() allocates a node stack with size trie->max_prefixlen, while it writes (trie->max_prefixlen + 1) nodes to the stack when it has full paths from the root to leaves. For example, consider a trie with max_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ... 0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with .prefixlen = 8 make 9 nodes be written on the node stack with size 8.
Severity: 0.0 | NA
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