From: Benjamin Berg <[email protected]> commit 801e00d3a1b78b7f71675fae79946ff4aa3ee070 upstream
Enable PR_SET_PDEATHSIG so that the UML userspace process will be killed when the kernel exits unexpectedly. Signed-off-by: Benjamin Berg <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Johannes Berg <[email protected]> [florian: upstream applies os_set_pdeathsig() in stub_exe.c, a file introduced in v6.13 that does not exist in 6.12; applied instead to userspace_tramp() in arch/um/os-Linux/skas/process.c, which is the equivalent entry-point for the userspace process in 6.12] Signed-off-by: Florian Fainelli <[email protected]> --- arch/um/os-Linux/skas/process.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index b6f656bcffb1..cca016b0b29b 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -214,6 +214,9 @@ static int userspace_tramp(void *stack) (unsigned long) stub_segv_handler - (unsigned long) __syscall_stub_start; + /* Make sure this process dies if the kernel dies */ + os_set_pdeathsig(); + ptrace(PTRACE_TRACEME, 0, 0, 0); signal(SIGTERM, SIG_DFL); -- 2.34.1
