rt-thread.git/components/lwp, branch copilot/bug-security-related-issue

lwp: fix pid leak on exec failure before task startup

2026-05-26T08:56:36Z

When msh tries to execute a non-ELF path, lwp_execve() may allocate a PID before lwp_load() fails. The old error path only dropped the LWP reference, leaving the PID tree entry pointing to a freed LWP. In an init-less boot flow, this can poison pid 1 after a failed command from msh. A later LWP launch may then treat the stale pid 1 entry as a valid parent LWP, resulting in invalid pgrp/session state and a job-control assertion during process exit. Add lwp_pid_rollback() for exec/spawn failures before the process becomes runnable. Unlike lwp_pid_put(), it always releases the PID lock and does not enter the "no more pid allocation" state when the PID tree becomes empty. Use the rollback helper in lwp_execve() failure paths after PID allocation. Signed-off-by: zhangyang

完善版权信息

2026-04-29T22:19:58Z

修改用户态 data 页权限为 RO

2026-04-29T22:19:58Z

修改锁为 rt_spinlock

2026-04-29T22:19:58Z

更新 vdso img 校验

2026-04-29T22:19:58Z

适配 arm 架构

2026-04-29T22:19:58Z

删除无用函数声明

2026-04-29T22:19:58Z

添加 vdso readtime 更新逻辑

2026-04-29T22:19:58Z

style: format code with clang-format [skip ci]

2026-04-29T22:19:58Z

解决 base_time 和 counter_last 采样不同步产生固定偏差

2026-04-29T22:19:58Z