CVE ID :CVE-2026-63834<\/p>\n
Published : July 19, 2026, 12:16 p.m. | 1\u00a0hour, 23\u00a0minutes ago<\/p>\n
Description :In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
batman-adv: tp_meter: restrict number of unacked list entries<\/p>\n
When the unacked_list is unbound, an attacker could send messages with
\nsmall lengths and appropriated seqno + gaps to force the receiver to
\nallocate more and more unacked_list entries. And the end either causing an
\nout-of-memory situation or increase the management overhead for the (large)
\nlist that significant portions of CPU cycles are wasted in searching
\nthrough the list.<\/p>\n
When limiting the list to a specific number, it is important to still
\ncorrectly add a new entry to the list. But if the list became larger than
\nthe limit, the last entry of the list (with the highest seqno) must be
\ndropped to still allow the earlier seqnos to finish and therefore to
\ncontinue the process. Otherwise, the process might get stuck with too high
\nseqnos which are not handled by batadv_tp_ack_unordered().<\/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-2026-63834 Published : July 19, 2026, 12:16 p.m. | 1\u00a0hour, 23\u00a0minutes ago Description :In the Linux kernel, the following vulnerability has been resolved: batman-adv: tp_meter: restrict number of unacked list entries When the unacked_list is unbound, an attacker could send messages with small lengths and appropriated seqno + gaps to force the receiver …<\/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-82246","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82246","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=82246"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82246\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}