Commit 17f30168 authored by Sven Schnelle's avatar Sven Schnelle Committed by Aichun Shi
Browse files

uprobes: (Re)add missing get_uprobe() in __find_uprobe() 

mainline inclusion
from mainline-5.12-rc1
commit b0d6d478
category: bugfix
bugzilla: https://gitee.com/src-openeuler/bpftrace/issues/I5RUM5
CVE: N/A

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b0d6d4789677d128b1933af023083054f0973574



-------------------------------------------------

commit c6bc9bd06dff ("rbtree, uprobes: Use rbtree helpers")
accidentally removed the refcount increase. Add it again.

Fixes: c6bc9bd06dff ("rbtree, uprobes: Use rbtree helpers")
Signed-off-by: default avatarSven Schnelle <svens@linux.ibm.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/20210209150711.36778-1-svens@linux.ibm.com


Signed-off-by: default avatarJason Zeng <jason.zeng@intel.com>
Signed-off-by: default avatarAichun Shi <aichun.shi@intel.com>
parent 7d3403df

kernel/events/uprobes.c

+1 −1
Original line number Diff line number Diff line
@@ -661,7 +661,7 @@ static struct uprobe *__find_uprobe(struct inode *inode, loff_t offset) 
	struct rb_node *node = rb_find(&key, &uprobes_tree, __uprobe_cmp_key);



	if (node)

		return __node_2_uprobe(node);

		return get_uprobe(__node_2_uprobe(node));



	return NULL;

}