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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2022-12-15 10:00:34 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2023-01-13 16:15:04 +0300 |
| commit | 639886b71ddef085a0e7bb1f225b8ae3eda5c06f (patch) | |
| tree | 9ee974d1a4ed1db5c0b139656bbcb1f9487f40f1 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 9c3205b2b062420c26b33924b910880889acf832 (diff) | |
| download | linux-639886b71ddef085a0e7bb1f225b8ae3eda5c06f.tar.xz | |
s390/early: fix sclp_early_sccb variable lifetime
Commit ada1da31ce34 ("s390/sclp: sort out physical vs
virtual pointers usage") fixed the notion of virtual
address for sclp_early_sccb pointer. However, it did
not take into account that kasan_early_init() can also
output messages and sclp_early_sccb should be adjusted
by the time kasan_early_init() is called.
Currently it is not a problem, since virtual and physical
addresses on s390 are the same. Nevertheless, should they
ever differ, this would cause an invalid pointer access.
Fixes: ada1da31ce34 ("s390/sclp: sort out physical vs virtual pointers usage")
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions