CVE ID : CVE-2026-23206<\/p>\n
Published : Feb. 14, 2026, 5:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago<\/p>\n
Description : In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
dpaa2-switch: prevent ZERO_SIZE_PTR dereference when num_ifs is zero<\/p>\n
The driver allocates arrays for ports, FDBs, and filter blocks using
\nkcalloc() with ethsw->sw_attr.num_ifs as the element count. When the
\ndevice reports zero interfaces (either due to hardware configuration
\nor firmware issues), kcalloc(0, …) returns ZERO_SIZE_PTR (0x10)
\ninstead of NULL.<\/p>\n
Later in dpaa2_switch_probe(), the NAPI initialization unconditionally
\naccesses ethsw->ports[0]->netdev, which attempts to dereference
\nZERO_SIZE_PTR (address 0x10), resulting in a kernel panic.<\/p>\n
Add a check to ensure num_ifs is greater than zero after retrieving
\ndevice attributes. This prevents the zero-sized allocations and
\nsubsequent invalid pointer dereference.<\/p>\n
Severity: 0.0 | NA<\/p>\n
Visit the link for more details, such as CVSS details, affected products, timeline, and more…\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"
CVE ID : CVE-2026-23206 Published : Feb. 14, 2026, 5:15 p.m. | 1\u00a0hour, 14\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: prevent ZERO_SIZE_PTR dereference when num_ifs is zero The driver allocates arrays for ports, FDBs, and filter blocks using kcalloc() with ethsw->sw_attr.num_ifs as the element count. When the …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-77158","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77158","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=77158"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77158\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}