CVE-2026-80629

Not scored yetLast modified Oct 30, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

octeontx2-af: npc: Fix size of entry2cntr_map

KASAN prints below splat. This is caused by allocating counter for reserved mcam entry for cpt 2nd pass entry. But mcam->entry2cntr_map is not allocated for reserved entries.

BUG: KASAN: slab-out-of-bounds in npc_map_mcam_entry_and_cntr+0xb0/0x1a0 Write of size 2 at addr ffff0001033e7ffe by task kworker/0:1/14

CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.67 #1 Hardware name: Marvell CN106XX board (DT) Workqueue: events work_for_cpu_fn Call trace: dump_backtrace.part.0+0xe4/0xf0 show_stack+0x18/0x30 dump_stack_lvl+0x88/0xb4 print_report+0x154/0x458 kasan_report+0xb8/0x194 __asan_store2+0x7c/0xa0 npc_map_mcam_entry_and_cntr+0xb0/0x1a0 rvu_mbox_handler_npc_mcam_write_entry+0x268/0x280 npc_install_flow+0x840/0xfe0 rvu_npc_install_cpt_pass2_entry+0x138/0x190 rvu_nix_init+0x148c/0x2880 rvu_probe+0x1800/0x30b0 local_pci_probe+0x78/0xe0 work_for_cpu_fn+0x30/0x50 process_one_work+0x4cc/0x97c worker_thread+0x360/0x630 kthread+0x1a0/0x1b0 ret_from_fork+0x10/0x20

Metrics

No CVSS score has been published yet.

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 55307fcb925846d760ed80f4a8359dd4331c52bd, < b7727c4d6f1d3bf85fec781ffe2b3c7ba4c1ecdc; >= 55307fcb925846d760ed80f4a8359dd4331c52bd, < 30e5ee98e86ad47c76695458987097e849d0611a; >= 55307fcb925846d760ed80f4a8359dd4331c52bd, < de8e3a4004c5df9461974352e9d7ff0f8313c508; >= 55307fcb925846d760ed80f4a8359dd4331c52bd, < 1d072cc3ba4338d6b2acb85d50a3af5cf2b12a3e; >= 55307fcb925846d760ed80f4a8359dd4331c52bd, < 2477c523c6e69733d51101ae9bd2dfc0a054b13d; >= 55307fcb925846d760ed80f4a8359dd4331c52bd, < f9cd6fabe0e7c7f6fc30c6c192c7ed72aba37232
LinuxLinux5.11

References

Timeline

Published
Aug 28, 2026
Last modified
Oct 30, 2026
NVD status
Received

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CVE-2026-80629: Unscored | Vulnix