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| author | Miroslav Benes <mbenes@suse.cz> | 2015-06-01 11:48:37 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-21 13:10:04 -0400 |
| commit | 9da8e034daa3670221442392ce9ea17474591c34 (patch) | |
| tree | e39a8632c273fe1b499b25033c03405eb80eee38 /net/switchdev | |
| parent | c17210c30c65355713afb618da1e24b970fa69c8 (diff) | |
livepatch: add module locking around kallsyms calls
commit 9a1bd63cdae4b623494c4ebaf723a91c35ec49fb upstream.
The list of loaded modules is walked through in
module_kallsyms_on_each_symbol (called by kallsyms_on_each_symbol). The
module_mutex lock should be acquired to prevent potential corruptions
in the list.
This was uncovered with new lockdep asserts in module code introduced by
the commit 0be964be0d45 ("module: Sanitize RCU usage and locking") in
recent next- trees.
Signed-off-by: Miroslav Benes <mbenes@suse.cz>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/switchdev')
0 files changed, 0 insertions, 0 deletions