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(parent: eb17c3d) | patch
perf trace: Use zfree() to reduce chances of use after free
authorArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 12 Apr 2023 12:50:08 +0000 (09:50 -0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 19 Sep 2023 10:27:59 +0000 (12:27 +0200)
commite5dee8222d7ccd1e1676229618e2f77e80b432df
treea657633fe434841ccdd1113cc18b12a9de43d469tree | snapshot
parenteb17c3d0055b0be441c845ff4ee29c3a842ea5a4commit | diff
perf trace: Use zfree() to reduce chances of use after free

[ Upstream commit 9997d5dd177c52017fa0541bf236a4232c8148e6 ]

Do defensive programming by using zfree() to initialize freed pointers
to NULL, so that eventual use after free result in a NULL pointer deref
instead of more subtle behaviour.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Stable-dep-of: 7962ef13651a ("perf trace: Really free the evsel->priv area")
Signed-off-by: Sasha Levin <sashal@kernel.org>
tools/perf/builtin-trace.c diff | blob | history
Domain: System / Kernel;