xemu-project/xemu
1
0
Fork 0
mirror of https://github.com/xemu-project/xemu.git synced 2025-02-14 17:07:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

hw/omap_intc.c: Avoid crash on access to nonexistent banked registers

Browse Source 
Avoid a crash due to null pointer dereference if a guest attempts
to access banked registers for a nonexistent bank. Spotted by
Coverity (see bug 887883).

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Peter Maydell 2011-11-09 18:45:38 +00:00 committed by Anthony Liguori
parent 1bbd1592c8
commit 096685fc2a
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hw/omap_intc.c
View File

@ -398,6 +398,9 @@ static uint64_t omap2_inth_read(void *opaque, target_phys_addr_t addr,
if (bank_no < s->nbanks) { if (bank_no < s->nbanks) {
offset &= ~0x60; offset &= ~0x60;
bank = &s->bank[bank_no]; bank = &s->bank[bank_no];
} else {
OMAP_BAD_REG(addr);
return 0;
} }
} }
@ -476,6 +479,9 @@ static void omap2_inth_write(void *opaque, target_phys_addr_t addr,
if (bank_no < s->nbanks) { if (bank_no < s->nbanks) {
offset &= ~0x60; offset &= ~0x60;
bank = &s->bank[bank_no]; bank = &s->bank[bank_no];
} else {
OMAP_BAD_REG(addr);
return;
} }
} }