diff options
author | Nicholas Bellinger <nab@linux-iscsi.org> | 2015-03-05 03:28:24 +0000 |
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committer | Sasha Levin <sasha.levin@oracle.com> | 2015-03-28 10:23:05 -0400 |
commit | b54521a3bfe9970502be05efadda60b4ce6dab07 (patch) | |
tree | 7c825083bc03e4bfb9961e79db4665587942cdfa /Makefile | |
parent | 6526d32f6b0b0bb8fd024580f91a32e2737fae57 (diff) |
target: Fix virtual LUN=0 target_configure_device failure OOPs
[ Upstream commit 5f7da044f8bc1cfb21c962edf34bd5699a76e7ae ]
This patch fixes a NULL pointer dereference triggered by a late
target_configure_device() -> alloc_workqueue() failure that results
in target_free_device() being called with DF_CONFIGURED already set,
which subsequently OOPses in destroy_workqueue() code.
Currently this only happens at modprobe target_core_mod time when
core_dev_setup_virtual_lun0() -> target_configure_device() fails,
and the explicit target_free_device() gets called.
To address this bug originally introduced by commit 0fd97ccf45, go
ahead and move DF_CONFIGURED to end of target_configure_device()
code to handle this special failure case.
Reported-by: Claudio Fleiner <cmf@daterainc.com>
Cc: Claudio Fleiner <cmf@daterainc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: <stable@vger.kernel.org> # v3.7+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions