diff -uNr uftrace-0.14/utils/shmem.c uftrace-0.14.mod/utils/shmem.c
--- uftrace-0.14/utils/shmem.c	2023-06-20 13:58:52.000000000 +0800
+++ uftrace-0.14.mod/utils/shmem.c	2023-06-22 11:30:14.618587925 +0800
@@ -17,7 +17,7 @@
 		const char *tmpdir;
 		tmpdir = getenv("TMPDIR");
 		if (!tmpdir)
-			tmpdir = "/tmp";
+			tmpdir = "@TERMUX_PREFIX@/tmp";
 
 		snprintf(uftrace_dir, sizeof(uftrace_dir), "%s/uftrace", tmpdir);
 	}