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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-06 10:35:19 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-12-06 10:35:19 -0800 |
| commit | abb8d6ecbd8f7801c048f6543f79d22d24cead7b (patch) | |
| tree | 696829e9641d027158b4a86123baf4044fd6eff7 | |
| parent | 2acee31cce656cca9e81072c330c1322e1376155 (diff) | |
| parent | 1aed58e67a6ec1e7a18bfabe8ba6ec2d27c15636 (diff) | |
| download | linux-abb8d6ecbd8f7801c048f6543f79d22d24cead7b.tar.gz | |
Merge tag 'trace-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"This is a single commit that fixes a bug in uprobes SDT code due to a
missing mutex protection"
* tag 'trace-v4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
Uprobes: Fix kernel oops with delayed_uprobe_remove()
| -rw-r--r-- | kernel/events/uprobes.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 322e97bbb4370a..abbd8da9ac2161 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -572,7 +572,9 @@ static void put_uprobe(struct uprobe *uprobe) * gets called, we don't get a chance to remove uprobe from * delayed_uprobe_list from remove_breakpoint(). Do it here. */ + mutex_lock(&delayed_uprobe_lock); delayed_uprobe_remove(uprobe, NULL); + mutex_unlock(&delayed_uprobe_lock); kfree(uprobe); } } |