CVE-2026-53128
Description
A flaw was found in the Linux kernel's drbd component. Specifically, an imbalance in RCU (Read-Copy Update) calls within the drbd_adm_dump_devices() function could occur, where rcu_read_lock() was not properly invoked before rcu_read_unlock(). This concurrency issue, identified by a thread-safety analyzer, may lead to system instability or a denial of service.
Understanding the Weakness (CWE)
Integrity,Confidentiality,Availability,Other
Technical Impact: DoS: Crash, Exit, or Restart; Execute Unauthorized Code or Commands; Modify Memory; Other
Depending on the locking being used, an unlock operation might not have any adverse effects. When effects exist, the most common consequence will be a corruption of the state of the product, possibly leading to a crash or exit; depending on the implementation of the unlocking, memory corruption or code execution could occur.
Frequently Asked Questions
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