{"id":70046,"date":"2025-09-12T21:32:12","date_gmt":"2025-09-12T18:02:12","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-39795-block-avoid-possible-overflow-for-chunk_sectors-check-in-blk_stack_limits\/"},"modified":"2025-09-12T21:32:12","modified_gmt":"2025-09-12T18:02:12","slug":"cve-2025-39795-block-avoid-possible-overflow-for-chunk_sectors-check-in-blk_stack_limits","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-39795-block-avoid-possible-overflow-for-chunk_sectors-check-in-blk_stack_limits\/","title":{"rendered":"CVE-2025-39795 &#8211; block: avoid possible overflow for chunk_sectors check in blk_stack_limits()"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-39795<br \/>\n<br \/>\n<strong>Published : <\/strong> Sept. 12, 2025, 4:15 p.m. | 29\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>block: avoid possible overflow for chunk_sectors check in blk_stack_limits()<\/p>\n<p>In blk_stack_limits(), we check that the t-&gt;chunk_sectors value is a<br \/>\nmultiple of the t-&gt;physical_block_size value.<\/p>\n<p>However, by finding the chunk_sectors value in bytes, we may overflow<br \/>\nthe unsigned int which holds chunk_sectors, so change the check to be<br \/>\nbased on sectors.<br \/>\n<br \/>\n<strong>Severity:<\/strong> 0.0 | NA<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-39795 Published : Sept. 12, 2025, 4:15 p.m. | 29\u00a0minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: block: avoid possible overflow for chunk_sectors check in blk_stack_limits() In blk_stack_limits(), we check that the t-&gt;chunk_sectors value is a multiple of the t-&gt;physical_block_size value. However, by finding the chunk_sectors &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-70046","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/70046","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=70046"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/70046\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=70046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=70046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=70046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}