{"id":80751,"date":"2026-06-18T21:30:12","date_gmt":"2026-06-18T18:00:12","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-55392-nilfs-utilities-undefined-behavior-and-out-of-memory-via-unvalidated-s_log_block_size\/"},"modified":"2026-06-18T21:30:12","modified_gmt":"2026-06-18T18:00:12","slug":"cve-2026-55392-nilfs-utilities-undefined-behavior-and-out-of-memory-via-unvalidated-s_log_block_size","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-55392-nilfs-utilities-undefined-behavior-and-out-of-memory-via-unvalidated-s_log_block_size\/","title":{"rendered":"CVE-2026-55392 &#8211; NILFS utilities &#8211; Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size"},"content":{"rendered":"<p>CVE ID :CVE-2026-55392<\/p>\n<p>  Published : June 18, 2026, 6 p.m. | 1\u00a0hour, 42\u00a0minutes ago<\/p>\n<p>  Description :NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfs_sb_is_valid() function fails to validate s_log_block_size field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashing tools like nilfs-tune and dumpseg.<\/p>\n<p>  Severity: 6.7 | MEDIUM<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-55392 Published : June 18, 2026, 6 p.m. | 1\u00a0hour, 42\u00a0minutes ago Description :NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfs_sb_is_valid() function fails to validate s_log_block_size field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashing tools like nilfs-tune and &hellip;<\/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-80751","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80751","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=80751"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/80751\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=80751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=80751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=80751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}