um: enable UBSAN

We can select ARCH_HAS_UBSAN, it works just fine. It had been
enabled and we even used it, but then commit 890a64810d59
("ubsan: Restore dependency on ARCH_HAS_UBSAN") (correctly)
disabled it again, enable ARCH_HAS_UBSAN to get it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20240701220034.995eb04d656d.Ia29fe091b207fe66b5e26298c1e427ebcf131642@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index e08a4a1a4bb6cba845dc2e6c49fd5ddc065c6f46..1faefc0a18eac63df85a7cc1fbb8b1caa7cec7d5 100644 (file)
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -32,6 +32,7 @@ config UML
        select TTY # Needed for line.c
        select HAVE_ARCH_VMAP_STACK
        select HAVE_RUST
+       select ARCH_HAS_UBSAN
 
 config MMU
        bool