diff options
| author | Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com> | 2023-05-30 12:13:48 -0700 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2023-06-01 13:14:39 +0000 |
| commit | 385f4bb965cd0f67958d77389d5185a38cb3c9d8 (patch) | |
| tree | 0035e6a531dc8c69eff6469d0a1b69a91562a892 /src/soc/intel/common/block | |
| parent | 5f3b6545f4ce1f6f0a0a44958c9a924f3639ea71 (diff) | |
soc/intel/common/crashlog: Check cbmem pointer before copying records
Check existence of crashlog records in CBMEM before copying them
to BERT, otherwise it can lead to NULL pointer access.
Bug=None
TEST=Able to build. With Meteor Lake SOC related patch, able to
capture and decode crashlog.
Change-Id: I4288011866283a3a5fb8ec9e10cd51b794052b4e
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75528
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc/intel/common/block')
| -rw-r--r-- | src/soc/intel/common/block/crashlog/crashlog.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/crashlog/crashlog.c b/src/soc/intel/common/block/crashlog/crashlog.c index aa2a240ce8..4b72599bfd 100644 --- a/src/soc/intel/common/block/crashlog/crashlog.c +++ b/src/soc/intel/common/block/crashlog/crashlog.c @@ -488,6 +488,10 @@ bool cl_fill_cpu_records(void *cl_record) printk(BIOS_DEBUG, "CPU crash data collection.\n"); cl_src_addr = cbmem_find(CBMEM_ID_CPU_CRASHLOG); + if (!cl_src_addr) { + printk(BIOS_DEBUG, "CPU crash data, CBMEM not found\n"); + return false; + } memcpy(cl_record, cl_src_addr, m_cpu_crashLog_size); return true; @@ -506,6 +510,10 @@ bool cl_fill_pmc_records(void *cl_record) printk(BIOS_DEBUG, "PMC crash data collection.\n"); cl_src_addr = cbmem_find(CBMEM_ID_PMC_CRASHLOG); + if (!cl_src_addr) { + printk(BIOS_DEBUG, "PMC crash data, CBMEM not found\n"); + return false; + } memcpy(cl_record, cl_src_addr, m_pmc_crashLog_size); return true; |