diff options
| author | Benjamin Berg <benjamin.berg@intel.com> | 2024-09-19 14:45:04 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2024-10-10 13:37:21 +0200 |
| commit | 801e00d3a1b78b7f71675fae79946ff4aa3ee070 (patch) | |
| tree | 20db4c401de61944da93f95b9b899ed4d764bdb6 /arch/um | |
| parent | um: use execveat to create userspace MMs (diff) | |
| download | linux-801e00d3a1b78b7f71675fae79946ff4aa3ee070.tar.xz linux-801e00d3a1b78b7f71675fae79946ff4aa3ee070.zip | |
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: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20240919124511.282088-4-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/kernel/skas/stub_exe.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/um/kernel/skas/stub_exe.c b/arch/um/kernel/skas/stub_exe.c index bc6ba2e4d805..04f75c577f1a 100644 --- a/arch/um/kernel/skas/stub_exe.c +++ b/arch/um/kernel/skas/stub_exe.c @@ -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)); |