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From: John Allen <john.allen@amd.com>
To: linux-crypto@vger.kernel.org
Cc: thomas.lendacky@amd.com, herbert@gondor.apana.org.au,
	davem@davemloft.net, brijesh.singh@amd.com, bp@suse.de,
	linux-kernel@vger.kernel.org, John Allen <john.allen@amd.com>
Subject: [PATCH 0/2] crypto/ccp: Properly NULL variables on sev exit
Date: Tue,  3 Mar 2020 07:57:22 -0600	[thread overview]
Message-ID: <20200303135724.14060-1-john.allen@amd.com> (raw)

Stale pointers left in static variables misc_dev and sp_dev_master will
trigger use-after-free error when DEBUG_TEST_DRIVER_REMOVE is configured.
                                                                                 
John Allen (2):
  crypto/ccp: Cleanup misc_dev on sev exit
  crypto/ccp: Cleanup sp_dev_master on psp device destroy

 drivers/crypto/ccp/psp-dev.c | 3 +++
 drivers/crypto/ccp/sev-dev.c | 6 +++---
 drivers/crypto/ccp/sp-dev.h  | 1 +
 drivers/crypto/ccp/sp-pci.c  | 9 +++++++++
 4 files changed, 16 insertions(+), 3 deletions(-)

-- 
2.18.2


             reply	other threads:[~2020-03-03 13:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-03 13:57 John Allen [this message]
2020-03-03 13:57 ` [PATCH 1/2] crypto/ccp: Cleanup misc_dev on sev_exit() John Allen
2020-03-06 15:56   ` Tom Lendacky
2020-03-03 13:57 ` [PATCH 2/2] crypto/ccp: Cleanup sp_dev_master in psp_dev_destroy() John Allen
2020-03-06 15:57   ` Tom Lendacky
2020-03-12 12:38 ` [PATCH 0/2] crypto/ccp: Properly NULL variables on sev exit Herbert Xu

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