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| author | Stefan Weil <sw@weilnetz.de> | 2012-09-04 07:35:57 +0200 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2012-09-10 15:00:06 +0200 |
| commit | 599d64f6dc10f267a45e7abebfcafd8e7626585b (patch) | |
| tree | f76150a6f2b636151852b78bdac3fd65114ab1a0 /target-arm/helper.c | |
| parent | 149eeb5fe57b853081e8059575d91b8a58a4f96c (diff) | |
| download | qemu-599d64f6dc10f267a45e7abebfcafd8e7626585b.zip qemu-599d64f6dc10f267a45e7abebfcafd8e7626585b.tar.gz qemu-599d64f6dc10f267a45e7abebfcafd8e7626585b.tar.bz2 | |
target-arm: Fix potential buffer overflow
Report from smatch:
target-arm/helper.c:651 arm946_prbs_read(6) error:
buffer overflow 'env->cp15.c6_region' 8 <= 8
target-arm/helper.c:661 arm946_prbs_write(6) error:
buffer overflow 'env->cp15.c6_region' 8 <= 8
c7_region is an array with 8 elements, so the index must be less than 8.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index dceaa95..e27df96 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -645,7 +645,7 @@ static int pmsav5_insn_ap_read(CPUARMState *env, const ARMCPRegInfo *ri, static int arm946_prbs_read(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t *value) { - if (ri->crm > 8) { + if (ri->crm >= 8) { return EXCP_UDEF; } *value = env->cp15.c6_region[ri->crm]; @@ -655,7 +655,7 @@ static int arm946_prbs_read(CPUARMState *env, const ARMCPRegInfo *ri, static int arm946_prbs_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) { - if (ri->crm > 8) { + if (ri->crm >= 8) { return EXCP_UDEF; } env->cp15.c6_region[ri->crm] = value; |