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IOMMU fix for Linux v6.4-rc7:

Browse source 
- AMD IOMMU: Fix potential memory leak in domain allocation path
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Merge tag 'iommu-fix-v6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fix from Joerg Roedel:

 - Fix potential memory leak in AMD IOMMU domain allocation path

* tag 'iommu-fix-v6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Fix possible memory leak of 'domain'
This commit is contained in:
Linus Torvalds 2023-06-23 15:56:44 -07:00
commit 917b3c7c0b
1 changed files with 4 additions and 4 deletions
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8
drivers/iommu/amd/iommu.c
View file

@ -2078,10 +2078,6 @@ static struct protection_domain *protection_domain_alloc(unsigned int type)
int mode = DEFAULT_PGTABLE_LEVEL;
int ret;
domain = kzalloc(sizeof(*domain), GFP_KERNEL);
if (!domain)
return NULL;
/*
* Force IOMMU v1 page table when iommu=pt and
* when allocating domain for pass-through devices.
@ -2097,6 +2093,10 @@ static struct protection_domain *protection_domain_alloc(unsigned int type)
return NULL;
}
domain = kzalloc(sizeof(*domain), GFP_KERNEL);
if (!domain)
return NULL;
switch (pgtable) {
case AMD_IOMMU_V1:
ret = protection_domain_init_v1(domain, mode);