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| author | jmbills <jason.m.bills@intel.com> | 2021-08-03 01:45:08 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-08-03 01:45:08 +0300 |
| commit | 10ad77d5bc86709d8ff7f95e7040e39f1c153903 (patch) | |
| tree | 307cedb87f4c0a329740c55ac364ed489d1d8fc2 /poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch | |
| parent | c6b1c6ba7a01b7987d65d61c262c44c320193108 (diff) | |
| parent | 67327ddc580cb9a85219a534844832a1682780d4 (diff) | |
| download | openbmc-10ad77d5bc86709d8ff7f95e7040e39f1c153903.tar.xz | |
Update
Diffstat (limited to 'poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch')
| -rw-r--r-- | poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch b/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch deleted file mode 100644 index 8a839c2b4..000000000 --- a/poky/meta/recipes-kernel/lttng/lttng-modules/0004-Fix-kretprobe-null-ptr-deref-on-session-destroy.patch +++ /dev/null @@ -1,41 +0,0 @@ -From 92cc3e7f76a545a2cd4828576971f1eea83f4e68 Mon Sep 17 00:00:00 2001 -From: Francis Deslauriers <francis.deslauriers@efficios.com> -Date: Wed, 17 Mar 2021 10:40:56 -0400 -Subject: [PATCH 4/4] Fix: kretprobe: null ptr deref on session destroy - -The `filter_bytecode_runtime_head` list is currently not initialized for -the return event of the kretprobe. This caused a kernel null ptr -dereference when destroying a session. It can reproduced with the -following commands: - - lttng create - lttng enable-event -k --function=lttng_test_filter_event_write my_event - lttng start - lttng stop - lttng destroy - -Upstream-status: backport - -Signed-off-by: Francis Deslauriers <francis.deslauriers@efficios.com> -Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> -Change-Id: I1162ce8b10dd7237a26331531f048346b984eee7 ---- - lttng-events.c | 2 ++ - 1 file changed, 2 insertions(+) - -diff --git a/lttng-events.c b/lttng-events.c -index 984bd341..3450fa40 100644 ---- a/lttng-events.c -+++ b/lttng-events.c -@@ -704,6 +704,8 @@ struct lttng_event *_lttng_event_create(struct lttng_channel *chan, - event_return->enabled = 0; - event_return->registered = 1; - event_return->instrumentation = itype; -+ INIT_LIST_HEAD(&event_return->bytecode_runtime_head); -+ INIT_LIST_HEAD(&event_return->enablers_ref_head); - /* - * Populate lttng_event structure before kretprobe registration. - */ --- -2.19.1 - |