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| author | Kai Huang <kai.huang@intel.com> | 2021-06-15 22:16:39 +1200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-06-15 18:03:45 +0200 |
| commit | 4692bc775d2180a937335ccba0edce557103d44a (patch) | |
| tree | 64da667e5326aa89e5a8b382cdcd484cc9ce8d4e | |
| parent | efa165504943f2128d50f63de0c02faf6dcceb0d (diff) | |
| download | linux-4692bc775d2180a937335ccba0edce557103d44a.tar.gz linux-4692bc775d2180a937335ccba0edce557103d44a.tar.bz2 linux-4692bc775d2180a937335ccba0edce557103d44a.zip | |
x86/sgx: Add missing xa_destroy() when virtual EPC is destroyed
xa_destroy() needs to be called to destroy a virtual EPC's page array
before calling kfree() to free the virtual EPC. Currently it is not
called so add the missing xa_destroy().
Fixes: 540745ddbc70 ("x86/sgx: Introduce virtual EPC for use by KVM guests")
Signed-off-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Tested-by: Yang Zhong <yang.zhong@intel.com>
Link: https://lkml.kernel.org/r/20210615101639.291929-1-kai.huang@intel.com
| -rw-r--r-- | arch/x86/kernel/cpu/sgx/virt.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/sgx/virt.c b/arch/x86/kernel/cpu/sgx/virt.c index 6ad165a5c0cc..64511c4a5200 100644 --- a/arch/x86/kernel/cpu/sgx/virt.c +++ b/arch/x86/kernel/cpu/sgx/virt.c @@ -212,6 +212,7 @@ static int sgx_vepc_release(struct inode *inode, struct file *file) list_splice_tail(&secs_pages, &zombie_secs_pages); mutex_unlock(&zombie_secs_pages_lock); + xa_destroy(&vepc->page_array); kfree(vepc); return 0; |