src/patches/fireinfo-virt-fix-off-by-one-error-when-detecting-hypervisor.patch

   1 From e3e68b9baa9723916b1999394432e9ad260cfaa2 Mon Sep 17 00:00:00 2001
   2 From: Michael Tremer <michael.tremer@ipfire.org>
   3 Date: Sat, 1 Jul 2023 09:08:48 +0000
   4 Subject: [PATCH] virt: Fix off-by-one error when detecting hypervisor
   5
   6 Reported-by: Mauro Condarelli <mc5686@mclink.it>
   7 Fixes: #13155 - _fireinfo.detect_hypervisor() rises Segmentation fault
   8 Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
   9 ---
  10  src/_fireinfo/fireinfo.c | 4 ++--
  11  1 file changed, 2 insertions(+), 2 deletions(-)
  12
  13 diff --git a/src/_fireinfo/fireinfo.c b/src/_fireinfo/fireinfo.c
  14 index 1d3f424..18edf34 100644
  15 --- a/src/_fireinfo/fireinfo.c
  16 +++ b/src/_fireinfo/fireinfo.c
  17 @@ -32,8 +32,8 @@ enum hypervisors {
  18         HYPER_KVM,
  19         HYPER_MSHV,
  20         HYPER_VMWARE,
  21 +       // Must always be last
  22         HYPER_OTHER,
  23 -       HYPER_LAST /* for loop - must be last*/
  24  };
  25
  26  const char *hypervisor_ids[] = {
  27 @@ -157,7 +157,7 @@ int detect_hypervisor(int *hypervisor) {
  28                 *hypervisor = HYPER_OTHER;
  29
  30                 if (*sig.text) {
  31 -                       for (int id = HYPER_NONE + 1; id < HYPER_LAST; id++) {
  32 +                       for (int id = HYPER_NONE + 1; id < HYPER_OTHER; id++) {
  33                                 if (strcmp(hypervisor_ids[id], sig.text) == 0) {
  34                                         *hypervisor = id;
  35                                         break;
  36 --
  37 2.39.2
  38