Commit 801e00d3 authored by Benjamin Berg's avatar Benjamin Berg Committed by Johannes Berg
Browse files

um: Set parent death signal for userspace process 



Enable PR_SET_PDEATHSIG so that the UML userspace process will be killed
when the kernel exits unexpectedly.

Signed-off-by: default avatarBenjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240919124511.282088-4-benjamin@sipsolutions.net


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 32e8eaf2

arch/um/kernel/skas/stub_exe.c

+3 −0
Original line number Diff line number Diff line
@@ -32,6 +32,9 @@ noinline static void real_init(void) 
	/* set a nice name */

	stub_syscall2(__NR_prctl, PR_SET_NAME, (unsigned long)"uml-userspace");



	/* Make sure this process dies if the kernel dies */

	stub_syscall2(__NR_prctl, PR_SET_PDEATHSIG, SIGKILL);



	/* read information from STDIN and close it */

	res = stub_syscall3(__NR_read, 0,

			    (unsigned long)&init_data, sizeof(init_data));