lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 22 Jan 2020 13:43:43 +0800 From: Lu Baolu <baolu.lu@...ux.intel.com> To: Jerry Snitselaar <jsnitsel@...hat.com>, iommu@...ts.linux-foundation.org Cc: baolu.lu@...ux.intel.com, Joerg Roedel <joro@...tes.org>, David Woodhouse <dwmw2@...radead.org>, stable@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] iommu/vt-d: call __dmar_remove_one_dev_info with valid pointer On 1/22/20 8:34 AM, Jerry Snitselaar wrote: > It is possible for archdata.iommu to be set to > DEFER_DEVICE_DOMAIN_INFO or DUMMY_DEVICE_DOMAIN_INFO so check for > those values before calling __dmar_remove_one_dev_info. Without a > check it can result in a null pointer dereference. This has been seen > while booting a kdump kernel on an HP dl380 gen9. > > Cc: Joerg Roedel <joro@...tes.org> > Cc: Lu Baolu <baolu.lu@...ux.intel.com> > Cc: David Woodhouse <dwmw2@...radead.org> > Cc: stable@...r.kernel.org # 5.3+ > Cc: linux-kernel@...r.kernel.org > Fixes: ae23bfb68f28 ("iommu/vt-d: Detach domain before using a private one") > Signed-off-by: Jerry Snitselaar <jsnitsel@...hat.com> Acked-by: Lu Baolu <baolu.lu@...ux.intel.com> Best regards, baolu
Powered by blists - more mailing lists