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Commit fa929593 authored by Tim Zimmermann's avatar Tim Zimmermann Committed by Harshit Jain
Browse files

syscall: Fake uname to 4.19 for bpfloader/netd 

* Google is attempting to kill 4.14 in https://android.googlesource.com/platform/system/bpf/+/0156d6e2ba1e90eecbd9ef47bcb39c41dcc78e53



Change-Id: Ic87a66753a7acc89b0fe5b19158eea4c58ba980f
Signed-off-by: default avatarCyber Knight <cyberknight755@gmail.com>
parent 089667d5

kernel/sys.c

+6 −0
Original line number Diff line number Diff line
@@ -1188,6 +1188,12 @@ SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name) 


	down_read(&uts_sem);

	memcpy(&tmp, utsname(), sizeof(tmp));

	if (!strncmp(current->comm, "bpfloader", 9) ||

	    !strncmp(current->comm, "netd", 4)) {

		strcpy(tmp.release, "4.19.0");

		pr_debug("fake uname: %s/%d release=%s\n",

			 current->comm, current->pid, tmp.release);

	}

	up_read(&uts_sem);

	if (copy_to_user(name, &tmp, sizeof(tmp)))

		return -EFAULT;