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From: "Thomas Hellström" <thomas.hellstrom@linux.intel.com>
To: intel-xe@lists.freedesktop.org
Subject: [Intel-xe] [PATCH v2 0/2] drm/xe: Fix unprotected rebind_list accesses
Date: Fri, 12 May 2023 09:52:41 +0200	[thread overview]
Message-ID: <20230512075243.447305-1-thomas.hellstrom@linux.intel.com> (raw)

Each VM has two rebind lists, one protected by the VM resv, the other
one protected essentially by the VM notifier.list_lock. This series
intends to fix two points of illegal access.

Patch 1 fixes an access of VM rebind_lists' link without the VM resv held.
Patch 2 fixes an issue where the VMA may not be removed from the
VM notifier.rebind_list on VMA destruction.

v2:
- Remove a code comment. (Matthew Brost)

Thomas Hellström (2):
  drm/xe: Fix unlocked access of the vma::rebind_link
  drm/xe: Properly remove the vma from the vm::notifer::rebind_list when
    destroyed

 drivers/gpu/drm/xe/xe_vm.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

-- 
2.39.2


             reply	other threads:[~2023-05-12  7:53 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-12  7:52 Thomas Hellström [this message]
2023-05-12  7:52 ` [Intel-xe] [PATCH v2 1/2] drm/xe: Fix unlocked access of the vma::rebind_link Thomas Hellström
2023-05-12  7:52 ` [Intel-xe] [PATCH v2 2/2] drm/xe: Properly remove the vma from the vm::notifer::rebind_list when destroyed Thomas Hellström
2023-05-12 11:26 ` [Intel-xe] ✓ CI.Patch_applied: success for drm/xe: Fix unprotected rebind_list accesses Patchwork
2023-05-12 11:29 ` [Intel-xe] ✓ CI.KUnit: " Patchwork
2023-05-12 11:32 ` [Intel-xe] ✓ CI.Build: " Patchwork
2023-05-12 11:48 ` [Intel-xe] ○ CI.BAT: info " Patchwork

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