diff mbox series

[Stable-8.1.4,06/31] linux-user: Fix loaddr computation for some elf files

Message ID 20231212121831.1003318-6-mjt@tls.msk.ru
State Superseded
Headers show
Series None | expand

Commit Message

Michael Tokarev Dec. 12, 2023, 12:17 p.m. UTC 
From: Richard Henderson <richard.henderson@linaro.org>

The file offset of the load segment is not relevant to the
low address, only the beginning of the virtual address page.

Cc: qemu-stable@nongnu.org
Fixes: a93934fecd4 ("elf: take phdr offset into account when calculating the program load address")
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1952
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
(cherry picked from commit 82d70a84c8ee42ef969a9cfddc0f5b30b16165f5)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
diff mbox series

Patch

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 47170fe5d3..b1462842b6 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -3093,7 +3093,7 @@  static void load_elf_image(const char *image_name, int image_fd,
     for (i = 0; i < ehdr->e_phnum; ++i) {
         struct elf_phdr *eppnt = phdr + i;
         if (eppnt->p_type == PT_LOAD) {
-            abi_ulong a = eppnt->p_vaddr - eppnt->p_offset;
+            abi_ulong a = eppnt->p_vaddr & TARGET_PAGE_MASK;
             if (a < loaddr) {
                 loaddr = a;
             }