summaryrefslogtreecommitdiff
path: root/arch/arm/mm
diff options
context:
space:
mode:
authorPan Bian <bianpan2016@163.com>2017-04-23 18:23:21 +0800
committerJoerg Roedel <jroedel@suse.de>2017-04-24 12:33:34 +0200
commit73dbd4a4230216b6a5540a362edceae0c9b4876b (patch)
tree1af257e9a90628ab2e0e97ba87cbe342764fc455 /arch/arm/mm
parent5a7ad1146caa895ad718a534399e38bd2ba721b7 (diff)
iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid()
In function amd_iommu_bind_pasid(), the control flow jumps to label out_free when pasid_state->mm and mm is NULL. And mmput(mm) is called. In function mmput(mm), mm is referenced without validation. This will result in a NULL dereference bug. This patch fixes the bug. Signed-off-by: Pan Bian <bianpan2016@163.com> Fixes: f0aac63b873b ('iommu/amd: Don't hold a reference to mm_struct') Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'arch/arm/mm')
0 files changed, 0 insertions, 0 deletions