CVE-2026-74602
- Source
- https://cve.org/CVERecord?id=CVE-2026-74602
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74602.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-74602
- Downstream
- Published
- 2026-08-22T15:31:50Z
- Modified
- 2026-08-25T03:51:43Z
- Summary
- ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ring-buffer: Initialise reader page order in rb_allocate_cpu_buffer()
In rb_allocate_cpu_buffer(), bpage->order was omitted, leaving it as 0. This is an issue for a ring-buffer with subbufs bigger than PAGE_SIZE if when freed: free_buffer_page() relies on this value. Align the value with the actual allocation size (buffer::subbuf_order).
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74602.json" }- References
-
- https://git.kernel.org/stable/c/2e37f2bf111429fbfa4d985b12df3ba496ca70aa
- https://git.kernel.org/stable/c/3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771a
- https://git.kernel.org/stable/c/6d014e44b68ddd43f71288d2a4dbb1a259869149
- https://git.kernel.org/stable/c/7c620d89bae1a926ab7d626600285d3516c9f3c4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74602.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-74602
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf9b94daa542a8d2532f0930f01cd9aec2d19621bFixed7c620d89bae1a926ab7d626600285d3516c9f3c4Fixed2e37f2bf111429fbfa4d985b12df3ba496ca70aaFixed3b3e0a6ee5bb3ac000f135beef26b2b7ed1a771aFixed6d014e44b68ddd43f71288d2a4dbb1a259869149