CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's RAID 10 implementation, specifically in the handling of discard operations where references for writes_pending and barriers are not properly released on failure paths. This oversight can lead to resource leaks, potentially impacting system performance and stability. Organizations using Linux systems with RAID 10 configurations should prioritize addressing this issue to ensure optimal resource management and prevent potential degradation of service.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix writes_pending and barrier reference leaks on discard failures raid10_make_request() acquires a writes_pending reference with md_write_start() before calling raid10_handle_discard(). Several failure paths in raid10_handle_discard() complete the bio and return without releasing the corresponding reference, causing md_write_end() to be skipped. Call md_write_end() before returning from these failure paths to keep writes_pending accounting balanced. Additionally, discard split allocation failures can occur after wait_barrier() succeeds. Those paths return without calling allow_barrier(), leaking the associated barrier reference. Release the barrier before returning from those paths.