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CVE-2026-43205 is an out-of-bounds write vulnerability in the Linux kernel dpaa2-switch driver. The driver retrieves sw_attr.num_ifs from firmware through dpsw_get_attributes() without validating it against DPSW_MAX_IF, which is 64. This value controls iteration in dpaa2_switch_fdb_get_flood_cfg(), which writes matching port indices into a fixed-size, 64-entry interface array and then appends the control interface. When num_ifs equals 64 and all ports match the flood filter, the port entries fill the array and the appended control interface overflows it by one entry. Larger firmware-reported interface counts can also cause out-of-bounds writes. The vulnerability can corrupt kernel memory.
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3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An out-of-bounds write vulnerability causing kernel memory corruption in the Linux kernel dpaa2-switch component. The plugin attributes its CVSS v3 base score of 7.8 to this CVE, with local access and low privileges required. Security updates are available for affected Rocky Linux 10.2 kernel packages.
A Linux kernel dpaa2-switch vulnerability that can cause kernel memory corruption via an out-of-bounds write.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.