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| author | H. Peter Anvin <hpa@linux.intel.com> | 2014-01-21 07:15:52 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-01-21 07:18:41 -0800 |
| commit | f775e740a3a817a4ff5ba26bea99dbfd735456b3 (patch) | |
| tree | aa8e9fedc331bc1136652226f6c97f4dcb950676 | |
| parent | b4cd1a45b9ca8ed5a0cd214231103bacd3e067e8 (diff) | |
| download | syslinux-f775e740a3a817a4ff5ba26bea99dbfd735456b3.tar.gz syslinux-f775e740a3a817a4ff5ba26bea99dbfd735456b3.tar.xz syslinux-f775e740a3a817a4ff5ba26bea99dbfd735456b3.zip | |
localboot: Clear register image before using
Using a register image on the stack without initializing it is not a
good idea.
Reported-by: Erwan Velu <erwanaliasr1@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
| -rw-r--r-- | core/localboot.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/core/localboot.c b/core/localboot.c index 0f4b5820..b68d3f2c 100644 --- a/core/localboot.c +++ b/core/localboot.c @@ -57,6 +57,7 @@ __export void local_boot(int16_t ax) * Load boot sector from the specified BIOS device and jump to * it. */ + memset(&ireg, 0, sizeof ireg); ireg.edx.b[0] = ax & 0xff; ireg.eax.w[0] = 0; /* Reset drive */ __intcall(0x13, &ireg, NULL); |