From 836b2fe544a5e9b5ce116622cb36fba33838c6fd Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 01:33:23 -0700 Subject: selftests/bpf: Check that JMP32 pointer vs zero jumps are not predicted Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which the verifier used to skip, contains an out of bounds map value access, hence w/o the previous patch the program is accepted. See previous patch for detailed description. Reported-by: Nicholas Carlini Suggested-by: Nicholas Carlini Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- arch/alpha/lib/styncpy.S | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 arch/alpha/lib/styncpy.S (limited to 'arch/alpha/lib/styncpy.S') diff --git a/arch/alpha/lib/styncpy.S b/arch/alpha/lib/styncpy.S new file mode 100644 index 000000000..f1078ff12 --- /dev/null +++ b/arch/alpha/lib/styncpy.S @@ -0,0 +1,10 @@ +#ifdef CONFIG_ALPHA_EV67 +#include "ev67-strncat.S" +#else +#include "strncat.S" +#endif +#ifdef CONFIG_ALPHA_EV6 +#include "ev6-stxncpy.S" +#else +#include "stxncpy.S" +#endif -- cgit v1.3.1