CVE-2026-63820

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix missing read bio submission on large folio error f2fs_read_data_large_folio() can keep a read bio across multiple readahead folios. If a later folio hits an error before any of its blocks are added to the bio, folio_in_bio is false and the current error path returns immediately after ending that folio. This can leave the bio accumulated for earlier folios unsubmitted. Those folios then never receive read completion, and readers can wait indefinitely on the locked folios. Route errors through the common out path so any pending bio is submitted before returning. Stop consuming more readahead folios once an error is seen, and only wait on and clear the current folio when it was actually added to the bio.

• CWE-404

• https://git.kernel.org/stable/c/48c92559e7b66fdc3cbc74f6e152e66ec0150a0aPatch
• https://git.kernel.org/stable/c/74c8d2ec95c59a5651ecd975c466998af1961fd4Patch

Published

Jul 19, 2026

Last Modified

Nov 10, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2026-63815In the Linux kernel, the following vulnerability has been re…8.4
• CVE-2026-63816In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63817In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63818In the Linux kernel, the following vulnerability has been re…8.4
• CVE-2026-63819In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-6382The FileOrganizer WordPress plugin before 1.1.9, Advanced F…9.1
• CVE-2026-63821In the Linux kernel, the following vulnerability has been re…
• CVE-2026-63822In the Linux kernel, the following vulnerability has been re…
• CVE-2026-63823In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63824In the Linux kernel, the following vulnerability has been re…7.8
• CVE-2026-63825In the Linux kernel, the following vulnerability has been re…9.8
• CVE-2026-63826In the Linux kernel, the following vulnerability has been re…