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| author | John Zhao <john.zhao@intel.com> | 2020-09-22 14:52:42 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-09-28 09:31:28 +0000 |
| commit | 4792f8f5eb1898b3dc31a4e97744abad8f393e84 (patch) | |
| tree | 2411a1addf767673c5acde5cb61b70444fee3627 /src/device | |
| parent | d8279fdb6d65b381f019a2be95d926b26863b8f5 (diff) | |
| download | coreboot-4792f8f5eb1898b3dc31a4e97744abad8f393e84.tar.xz | |
superio/common: Fix NULL pointer dereferences
Coverity detects the dev->link_list NULL pointer dereferences while
calling report_resource_stored. Add sanity check for dev->link_list to
prevent NULL pointer dereference.
Found-by: Coverity CID 1419488
TEST=None
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I953a6524fff509a7833896392b25a3245c8cd705
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45627
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/device_util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/device/device_util.c b/src/device/device_util.c index 22c3db1c44..452a87bf14 100644 --- a/src/device/device_util.c +++ b/src/device/device_util.c @@ -519,7 +519,7 @@ void report_resource_stored(struct device *dev, struct resource *resource, end = resource_end(resource); buf[0] = '\0'; - if (resource->flags & IORESOURCE_PCI_BRIDGE) { + if (dev->link_list && (resource->flags & IORESOURCE_PCI_BRIDGE)) { snprintf(buf, sizeof(buf), "bus %02x ", dev->link_list->secondary); } |