Messages in this thread | | | From | Alexey Khoroshilov <> | Subject | [BUG] act_ife: sleeping functions called in atomic context | Date | Thu, 16 Jun 2016 23:50:19 +0300 |
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tcf_ife_init() contains a big chunk of code executed with ife->tcf_lock spinlock held. But that code contains several calls to sleeping functions: populate_metalist() and use_all_metadata() -> add_metainfo() -> find_ife_oplist(metaid) -> read_lock() -> try_module_get(o->owner) -> kzalloc(sizeof(*mi), GFP_KERNEL); -> ops->alloc(mi, metaval); -> module_put(ops->owner); _tcf_ife_cleanup() -> module_put()
The same problem is actual for tcf_ife_cleanup() as well.
Found by Linux Driver Verification project (linuxtesting.org).
-- Alexey Khoroshilov Linux Verification Center, ISPRAS web: http://linuxtesting.org
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