From d67bffc79628a990e1d892282d62271fac5c5af4 Mon Sep 17 00:00:00 2001 From: stratakis Date: Thu, 22 Jan 2026 18:06:36 +0100 Subject: [PATCH] gh-142779: Initialize reserved field for proper padding (GH-142780) The jitdump specification specifies a reserved field for padding. Initialize it so no garbage data is embedded in the jitdump files. (cherry picked from commit 77bf4ba732a8736910bd6b7ec5a58b8ee833c95f) Co-authored-by: stratakis --- Python/perf_jit_trampoline.c | 1 + 1 file changed, 1 insertion(+) diff --git a/Python/perf_jit_trampoline.c b/Python/perf_jit_trampoline.c index a44a74f58df85a..3a63dd73bc47cc 100644 --- a/Python/perf_jit_trampoline.c +++ b/Python/perf_jit_trampoline.c @@ -372,6 +372,7 @@ static void perf_map_jit_write_header(int pid, FILE* out_file) { header.version = 1; // Current jitdump version header.size = sizeof(Header); // Header size for validation header.elf_mach_target = GetElfMachineArchitecture(); // Target architecture + header.reserved = 0; // padding reserved for future use header.process_id = pid; // Process identifier header.time_stamp = get_current_time_microseconds(); // Creation time header.flags = 0; // No special flags currently used