diff options
Diffstat (limited to 'sysdeps/x86_64/dl-machine.h')
| -rw-r--r-- | sysdeps/x86_64/dl-machine.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sysdeps/x86_64/dl-machine.h b/sysdeps/x86_64/dl-machine.h index ca290ef082..2d2ce503a5 100644 --- a/sysdeps/x86_64/dl-machine.h +++ b/sysdeps/x86_64/dl-machine.h @@ -607,8 +607,9 @@ x86_64_rewrite_plt (struct link_map *map, ElfW(Addr) plt_rewrite) /* Skip ENDBR64 if IBT isn't enabled. */ if (!ibt_enabled_p) branch_start = ALIGN_DOWN (branch_start, pltent); - /* Get the displacement from the branch target. */ - ElfW(Addr) disp = value - branch_start - JMP32_INSN_SIZE; + /* Get the displacement from the branch target. NB: We must use + 64-bit integer on x32 to avoid overflow. */ + uint64_t disp = (uint64_t) value - branch_start - JMP32_INSN_SIZE; ElfW(Addr) plt_end; ElfW(Addr) pad; |