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Use correct addrsp when setting sighandler.

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This commit is contained in:
4lDO2
2024-06-23 23:17:26 +02:00
parent cc406804c0
commit b94904a660
1 changed files with 9 additions and 2 deletions
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src/scheme/proc.rs
+9 -2
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@@ -1133,6 +1133,9 @@ impl<const FULL: bool> KernelScheme for ProcScheme<FULL> {
if data.user_handler >= crate::USER_END_OFFSET || data.excp_handler >= crate::USER_END_OFFSET {
return Err(Error::new(EPERM));
}
if data.thread_control_addr >= crate::USER_END_OFFSET || data.proc_control_addr >= crate::USER_END_OFFSET {
return Err(Error::new(EFAULT));
}
let state = if data.thread_control_addr != 0 && data.proc_control_addr != 0 {
let offset = u16::try_from(data.thread_control_addr % PAGE_SIZE).unwrap();
@@ -1146,8 +1149,12 @@ impl<const FULL: bool> KernelScheme for ProcScheme<FULL> {
}
};
let addrsp = AddrSpace::current()?;
let addrsp = Arc::clone(
context::contexts().get(info.pid)
.ok_or(Error::new(ESRCH))?
.read()
.addr_space()?
);
Some(SignalState {
threadctl_off: validate_off(data.thread_control_addr, mem::size_of::<Sigcontrol>())?,