CyberRota Analysis
AI-GeneratedThe vulnerability in the Linux kernel affects the process creation mechanism, specifically in the handling of the PF_BLOCK_TS flag during the `copy_process()` function. This flaw allows the PF_BLOCK_TS flag to be incorrectly inherited from the parent process even when the child's plug pointer is reset to NULL, potentially leading to unsafe dereferencing of the plug pointer. System administrators and developers managing Linux environments should prioritize this issue to prevent potential exploitation that could compromise system stability or security.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: kernel/fork: clear PF_BLOCK_TS in copy_process() PF_BLOCK_TS is only set in blk_time_get_ns() when current->plug is non-NULL, and blk_finish_plug() clears it via __blk_flush_plug() before NULLing the plug pointer. copy_process() breaks the invariant by inheriting PF_BLOCK_TS from the parent while resetting the child's plug to NULL. Clear PF_BLOCK_TS alongside that assignment so callers can rely on "PF_BLOCK_TS set implies current->plug != NULL" and dereference current->plug unguarded.
Related CVEs
Other vulnerabilities affecting the same vendor(s)