diff --git a/ci-sanitizers-test.sh b/ci-sanitizers-test.sh
index 6850fcc..a099794 100755
--- a/ci-sanitizers-test.sh
+++ b/ci-sanitizers-test.sh
@@ -2,7 +2,8 @@
 set -eauxo pipefail
 
 # llvm-symbolizer supports v0 mangling
-RUSTFLAGS="-Zrandomize-layout -Cdebuginfo=full -Csymbol-mangling-version=v0 --cfg=skip-slow-tests"
+RUSTFLAGS="-Zrandomize-layout -Cdebuginfo=full -Csymbol-mangling-version=v0 \
+    --cfg skip_slow_tests"
 
 if [ -z "${TARGET+x}" ]; then
     echo "Env TARGET must be set"
@@ -29,7 +30,7 @@ address)
     # FIXME: if on aarch64-{unknown}-linux-{android, gnu}, we can use `hwaddress`
     # instead of `address` which should be faster. Unfortunately we probably
     # don't have that in CI
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=address"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=address --cfg sanitizer=\"address\""
     ;;
 hwaddress)
     # see above
@@ -41,36 +42,38 @@ kasan)
     exit 1
     ;;
 memory)
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=memory"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=memory --cfg sanitizer=\"memory\""
     ;;
 memtag)
     # FIXME: alternative to MSAN with the same target restrictions as hwaddress
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=memtag"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=memtag --cfg sanitizer=\"memory\""
     ecbo "we don't have a CI target for this yet"
     exit 1
     ;;
 cfi)
     # CFI needs LTO and 1CGU, seems like randomize-layout enables `embed-bitcode=no`
     # which conflicts
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=cfi -Cembed-bitcode=yes -Clinker-plugin-lto -Ccodegen-units=1"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=cfi --cfg sanitizer=\"cfi\" \
+        -Cembed-bitcode=yes -Clinker-plugin-lto -Ccodegen-units=1"
     ;;
 kcfi)
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=kcfi"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=kcfi --cfg sanitizer=\"cfi\""
     ;;
 safestack)
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=safestack"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=safestack --cfg sanitizer=\"safestack\""
     ;;
 shadow-call-stack)
     # FIXME: aarch64-linux-android only
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=shadow-call-stack"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=shadow-call-stack \
+        --cfg sanitizer=\"shadow-call-stack\""
     echo "we don't have a CI target for this yet"
     exit 1
     ;;
 leak)
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=leak"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=leak --cfg sanitizer=\"leak\""
     ;;
 thread)
-    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=thread"
+    RUSTFLAGS="${RUSTFLAGS} -Zsanitizer=thread --cfg sanitizer=\"thread\""
     ;;
 *)
     echo "unknown sanitizer $2"
diff --git a/rust-src-san.diff b/rust-src-san.diff
index c281d73..a34e06e 100644
--- a/rust-src-san.diff
+++ b/rust-src-san.diff
@@ -1,28 +1,29 @@
 diff --git a/library/alloc/tests/vec.rs b/library/alloc/tests/vec.rs
-index d44dcfbf673..d3bacbc1586 100644
+index d44dcfbf673..28809512f07 100644
 --- a/library/alloc/tests/vec.rs
 +++ b/library/alloc/tests/vec.rs
-@@ -1636,6 +1636,7 @@ fn test_reserve_exact() {
+@@ -1636,6 +1636,8 @@ fn test_reserve_exact() {
  }
  
  #[test]
-+#[no_sanitize] // ASAN throws an error for requesting max allocation size
++// ASAN throws an error for requesting max allocation size
++#[cfg_attr(sanitzer = "memory", no_sanitize)]
  #[cfg_attr(miri, ignore)] // Miri does not support signalling OOM
  #[cfg_attr(target_os = "android", ignore)] // Android used in CI has a broken dlmalloc
  fn test_try_reserve() {
 diff --git a/library/core/tests/slice.rs b/library/core/tests/slice.rs
-index 865e702b5c2..5efad11a463 100644
+index 865e702b5c2..c28fb2660aa 100644
 --- a/library/core/tests/slice.rs
 +++ b/library/core/tests/slice.rs
-@@ -1876,7 +1876,7 @@ fn sort_unstable() {
- }
+@@ -1877,7 +1877,7 @@ fn sort_unstable() {
  
  #[test]
--#[cfg(not(target_arch = "wasm32"))]
-+#[cfg(not(any(skip_slow_tests, target_arch = "wasm32")))]
- #[cfg_attr(miri, ignore)] // Miri is too slow
+ #[cfg(not(target_arch = "wasm32"))]
+-#[cfg_attr(miri, ignore)] // Miri is too slow
++#[cfg_attr(any(miri. skip_slow_tests), ignore)] // Miri is too slow
  fn select_nth_unstable() {
      use core::cmp::Ordering::{Equal, Greater, Less};
+     use rand::seq::SliceRandom;
 @@ -2573,7 +2573,8 @@ macro_rules! empty_max_mut {
      };
  }