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| author | Zhou Chengming <zhouchengming1@huawei.com> | 2017-07-07 05:15:58 +0200 |
|---|---|---|
| committer | Jessica Yu <jeyu@kernel.org> | 2017-07-25 15:08:32 +0200 |
| commit | 5279631271b32201243c60308a8987bd585e4460 (patch) | |
| tree | aadd8b14c39efbee509876d18f4a5a796a8d13c0 /Makefile | |
| parent | modpost: abort if module name is too long (diff) | |
| download | linux-5279631271b32201243c60308a8987bd585e4460.tar.xz linux-5279631271b32201243c60308a8987bd585e4460.zip | |
module: fix ddebug_remove_module()
ddebug_remove_module() use mod->name to find the ddebug_table of the
module and remove it. But dynamic_debug_setup() use the first
_ddebug->modname to create ddebug_table for the module. It's ok when
the _ddebug->modname is the same with the mod->name.
But livepatch module is special, it may contain _ddebugs of other
modules, the modname of which is different from the name of livepatch
module. So ddebug_remove_module() can't use mod->name to find the
right ddebug_table and remove it. It can cause kernel crash when we cat
the file <debugfs>/dynamic_debug/control.
Signed-off-by: Zhou Chengming <zhouchengming1@huawei.com>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions