{"id":"CVE-2026-80629","title":"octeontx2-af: npc: Fix size of entry2cntr_map","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: npc: Fix size of entry2cntr_map\n\nKASAN prints below splat. This is caused by allocating counter for\nreserved mcam entry for cpt 2nd pass entry. But mcam->…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 30e5ee98e86ad47c76695458987097e849d0611a","Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < de8e3a4004c5df9461974352e9d7ff0f8313c508","Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e","Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 2477c523c6e69733d51101ae9bd2dfc0a054b13d","Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232","Linux 5.11"],"published":"2026-08-28","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:46:39.362Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80629","references":[{"url":"https://git.kernel.org/stable/c/30e5ee98e86ad47c76695458987097e849d0611a"},{"url":"https://git.kernel.org/stable/c/de8e3a4004c5df9461974352e9d7ff0f8313c508"},{"url":"https://git.kernel.org/stable/c/1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e"},{"url":"https://git.kernel.org/stable/c/2477c523c6e69733d51101ae9bd2dfc0a054b13d"},{"url":"https://git.kernel.org/stable/c/f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232"}],"tags":["cve.org"],"epss":0.00209,"epssPercentile":0.10412,"ingestedAt":"2026-10-21T12:48:53.755Z","slug":"CVE-2026-80629","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: npc: Fix size of entry2cntr_map\n\nKASAN prints below splat. This is caused by allocating counter for\nreserved mcam entry for cpt 2nd pass entry. But mcam->entry2cntr_map\nis not allocated for reserved entries.\n\nBUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0\nWrite of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14\n\nCPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1\nHardware name: Marvell CN106XX board (DT)\nWorkqueue: events work_for_cpu_fn\nCall trace:\n dump_backtrace.part.0+0xe4/0xf0\n show_stack+0x18/0x30\n dump_stack_lvl+0x88/0xb4\n print_report+0x154/0x458\n kasan_report+0xb8/0x194\n __asan_store2+0x7c/0xa0\n npc_map_mcam_entry_and_cntr+0xb0/0x1a0\n rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280\n npc_install_flow+0x840/0xfe0\n rvu_npc_install_cpt_pass2_entry+0x138/0x190\n rvu_nix_init+0x148c/0x2880\n rvu_probe+0x1800/0x30b0\n local_pci_probe+0x78/0xe0\n work_for_cpu_fn+0x30/0x50\n process_one_work+0x4cc/0x97c\n worker_thread+0x360/0x630\n kthread+0x1a0/0x1b0\n ret_from_fork+0x10/0x20\n\n## Affected\n\n- `Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 30e5ee98e86ad47c76695458987097e849d0611a`\n- `Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < de8e3a4004c5df9461974352e9d7ff0f8313c508`\n- `Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e`\n- `Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < 2477c523c6e69733d51101ae9bd2dfc0a054b13d`\n- `Linux >= 55307fcb925846d760ed80f4a8359dd4331c52bd < f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232`\n- `Linux 5.11`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}