[tip:x86/urgent] x86/amd-iommu: Use helper function to destroy domain

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Commit-ID:  8b408fe4f853dcfa18d133aa4cf1d7546b4c3870
Gitweb:     http://git.kernel.org/tip/8b408fe4f853dcfa18d133aa4cf1d7546b4c3870
Author:     Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Mon, 8 Mar 2010 14:20:07 +0100
Committer:  Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Mon, 8 Mar 2010 14:20:07 +0100

x86/amd-iommu: Use helper function to destroy domain

In the amd_iommu_domain_destroy the protection_domain_free
function is partly reimplemented. The 'partly' is the bug
here because the domain is not deleted from the domain list.
This results in use-after-free errors and data-corruption.
Fix it by just using protection_domain_free instead.

Cc: stable@xxxxxxxxxx
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
 arch/x86/kernel/amd_iommu.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 0c04254..b06f29e 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2380,9 +2380,7 @@ static void amd_iommu_domain_destroy(struct iommu_domain *dom)
 
 	free_pagetable(domain);
 
-	domain_id_free(domain->id);
-
-	kfree(domain);
+	protection_domain_free(domain);
 
 	dom->priv = NULL;
 }
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Stable Commits]     [Linux Stable Kernel]     [Linux Kernel]     [Linux USB Devel]     [Linux Video &Media]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux