Ian Rogers ab8ce15078 perf machine: Avoid out of bounds LBR memory read ... Running perf top with address sanitizer and "--call-graph=lbr" fails due to reading sample 0 when no samples exist. Add a guard to prevent this. Fixes: e2b23483eb ("perf machine: Factor out lbr_callchain_add_lbr_ip()") Signed-off-by: Ian Rogers <irogers@google.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sandipan Das <sandipan.das@amd.com> Cc: Anshuman Khandual <anshuman.khandual@arm.com> Cc: German Gomez <german.gomez@arm.com> Cc: James Clark <james.clark@arm.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: liuwenyu <liuwenyu7@huawei.com> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Song Liu <song@kernel.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Yanteng Si <siyanteng@loongson.cn> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Link: https://lore.kernel.org/r/20231024222353.3024098-3-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>		2023-10-25 13:36:20 -07:00
..
accounting
arch	tools arch x86: Sync the msr-index.h copy with the kernel sources	2023-09-13 08:53:37 -03:00
bootconfig
bpf	bpftool: Fix build warnings with -Wtype-limits	2023-08-30 08:39:00 +02:00
build	tools/build: Fix -s detection code in tools/build/Makefile.build	2023-10-18 15:29:35 -07:00
certs
cgroup	iocost_monitor: improve it by adding iocg wait_ms	2023-08-08 15:43:03 -06:00
counter
crypto/ccp
debugging
edid
firewire
firmware
gpio
hv
iio	tools: iio: iio_generic_buffer: Fix some integer type and calculation	2023-07-29 15:59:20 +01:00
include	perf tools: Add get_unaligned_leNN()	2023-10-17 12:40:02 -07:00
kvm/kvm_stat
laptop
leds
lib	tools api: Avoid potential double free	2023-10-12 10:01:57 -07:00
memory-model
mm	tools/mm: fix undefined reference to pthread_once	2023-09-05 10:13:45 -07:00
net/ynl	tools/net/ynl: Add support for create flags	2023-08-27 17:17:10 -07:00
objtool	objtool/x86: Fixup frame-pointer vs rethunk	2023-08-17 00:44:35 +02:00
pci
pcmcia
perf	perf machine: Avoid out of bounds LBR memory read	2023-10-25 13:36:20 -07:00
power	More power management updates for 6.6-rc1	2023-09-04 15:21:55 -07:00
rcu
scripts	tools/build: Fix -s detection code in tools/scripts/Makefile.include	2023-10-18 15:29:47 -07:00
spi
testing	XArray/IDA updates for 6.6	2023-09-08 21:46:26 -07:00
thermal
time
tracing
usb
verification
virtio
wmi
workqueue	workqueue: Implement non-strict affinity scope for unbound workqueues	2023-08-07 15:57:25 -10:00
Makefile