| Submitter | Herton Ronaldo Krzesinski |
|---|---|
| Date | Jan. 14, 2013, 8:57 p.m. |
| Message ID | <1358197071-17520-1-git-send-email-herton.krzesinski@canonical.com> |
| Download | mbox | patch |
| Permalink | /patch/211916/ |
| State | New |
| Headers | show |
Comments
Patch
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index 2359568..da84ea3 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -2561,6 +2561,11 @@ static struct ib_mr *nes_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, return ibmr; case IWNES_MEMREG_TYPE_QP: case IWNES_MEMREG_TYPE_CQ: + if (!region->length) { + nes_debug(NES_DBG_MR, "Unable to register zero length region for CQ\n"); + ib_umem_release(region); + return ERR_PTR(-EINVAL); + } nespbl = kzalloc(sizeof(*nespbl), GFP_KERNEL); if (!nespbl) { nes_debug(NES_DBG_MR, "Unable to allocate PBL\n");
This is a note to let you know that I have just added a patch titled RDMA/nes: Fix for crash when registering zero length MR for to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ From 89f0bdbc2d0fa3c96183555bb520205987ad9aac Mon Sep 17 00:00:00 2001 From: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Date: Thu, 6 Dec 2012 20:05:02 +0000 Subject: [PATCH] RDMA/nes: Fix for crash when registering zero length MR for CQ commit 7d9c199a55200c9b9fcad08e150470d02fb385be upstream. Signed-off-by: Tatyana Nikolova <Tatyana.E.Nikolova@intel.com> Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com> --- drivers/infiniband/hw/nes/nes_verbs.c | 5 +++++ 1 file changed, 5 insertions(+) -- 1.7.9.5