From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: "xinhui pan" <xinhui.pan@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Sasha Levin" <sashal@kernel.org>,
amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.12 58/63] drm/amdgpu: Fix a use-after-free
Date: Mon, 24 May 2021 10:46:15 -0400 [thread overview]
Message-ID: <20210524144620.2497249-58-sashal@kernel.org> (raw)
In-Reply-To: <20210524144620.2497249-1-sashal@kernel.org>
From: xinhui pan <xinhui.pan@amd.com>
[ Upstream commit 1e5c37385097c35911b0f8a0c67ffd10ee1af9a2 ]
looks like we forget to set ttm->sg to NULL.
Hit panic below
[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[ 1235.989074] Call Trace:
[ 1235.991751] sg_free_table+0x17/0x20
[ 1235.995667] amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu]
[ 1236.002288] amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu]
[ 1236.008464] ttm_tt_destroy+0x1e/0x30 [ttm]
[ 1236.013066] ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm]
[ 1236.018783] ttm_bo_release+0x262/0xa50 [ttm]
[ 1236.023547] ttm_bo_put+0x82/0xd0 [ttm]
[ 1236.027766] amdgpu_bo_unref+0x26/0x50 [amdgpu]
[ 1236.032809] amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu]
[ 1236.040400] kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu]
[ 1236.046912] kfd_ioctl+0x463/0x690 [amdgpu]
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 383c178cf074..bbc73cde6b04 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1287,6 +1287,7 @@ static void amdgpu_ttm_tt_unpopulate(struct ttm_bo_device *bdev,
if (gtt && gtt->userptr) {
amdgpu_ttm_tt_set_user_pages(ttm, NULL);
kfree(ttm->sg);
+ ttm->sg = NULL;
ttm->page_flags &= ~TTM_PAGE_FLAG_SG;
return;
}
--
2.30.2
next prev parent reply other threads:[~2021-05-24 14:50 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-24 14:45 [PATCH AUTOSEL 5.12 01/63] platform/x86: hp_accel: Avoid invoking _INI to speed up resume Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 02/63] gpio: cadence: Add missing MODULE_DEVICE_TABLE Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 03/63] Revert "crypto: cavium/nitrox - add an error message to explain the failure of pci_request_mem_regions" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 04/63] Revert "media: usb: gspca: add a missed check for goto_low_power" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 05/63] Revert "ALSA: sb: fix a missing check of snd_ctl_add" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 06/63] Revert "serial: max310x: pass return value of spi_register_driver" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 07/63] serial: max310x: unregister uart driver in case of failure and abort Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 08/63] Revert "net: fujitsu: fix a potential NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 09/63] net: fujitsu: fix potential null-ptr-deref Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 10/63] Revert "net/smc: fix a NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 11/63] net/smc: properly handle workqueue allocation failure Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 12/63] Revert "net: caif: replace BUG_ON with recovery code" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 13/63] net: caif: remove BUG_ON(dev == NULL) in caif_xmit Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 14/63] Revert "char: hpet: fix a missing check of ioremap" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 15/63] char: hpet: add checks after calling ioremap Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 16/63] Revert "ALSA: gus: add a check of the status of snd_ctl_add" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 17/63] ALSA: sb8: Add a comment note regarding an unused pointer Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 18/63] Revert "ALSA: usx2y: Fix potential NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 19/63] Revert "isdn: mISDNinfineon: fix " Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 20/63] isdn: mISDNinfineon: check/cleanup ioremap failure correctly in setup_io Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 21/63] Revert "ath6kl: return error code in ath6kl_wmi_set_roam_lrssi_cmd()" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 22/63] ath6kl: return error code in ath6kl_wmi_set_roam_lrssi_cmd() Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 23/63] Revert "isdn: mISDN: Fix potential NULL pointer dereference of kzalloc" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 24/63] isdn: mISDN: correctly handle ph_info allocation failure in hfcsusb_ph_info Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 25/63] Revert "dmaengine: qcom_hidma: Check for driver register failure" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 26/63] dmaengine: qcom_hidma: comment platform_driver_register call Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 27/63] Revert "libertas: add checks for the return value of sysfs_create_group" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 28/63] libertas: register sysfs groups properly Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 29/63] Revert "ASoC: rt5645: fix a NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 30/63] ASoC: rt5645: add error checking to rt5645_probe function Sasha Levin
2021-05-25 14:01 ` Mark Brown
2021-05-25 14:44 ` Greg Kroah-Hartman
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 31/63] Revert "ASoC: cs43130: fix a NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 32/63] ASoC: cs43130: handle errors in cs43130_probe() properly Sasha Levin
2021-05-25 14:00 ` Mark Brown
2021-05-25 14:43 ` Greg Kroah-Hartman
2021-05-25 22:17 ` Mark Brown
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 33/63] Revert "media: dvb: Add check on sp8870_readreg" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 34/63] media: dvb: Add check on sp8870_readreg return Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 35/63] Revert "media: gspca: mt9m111: Check write_bridge for timeout" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 36/63] media: gspca: mt9m111: Check write_bridge for timeout Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 37/63] Revert "media: gspca: Check the return value of write_bridge for timeout" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 38/63] media: gspca: properly check for errors in po1030_probe() Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 39/63] Revert "net: liquidio: fix a NULL pointer dereference" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 40/63] net: liquidio: Add missing null pointer checks Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 41/63] Revert "brcmfmac: add a check for the status of usb_register" Sasha Levin
2021-05-24 14:45 ` [PATCH AUTOSEL 5.12 42/63] brcmfmac: properly check for bus register errors Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 43/63] cdrom: gdrom: initialize global variable at init time Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 44/63] btrfs: return whole extents in fiemap Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 45/63] scsi: ufs: ufs-mediatek: Fix power down spec violation Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 46/63] scsi: BusLogic: Fix 64-bit system enumeration error for Buslogic Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 47/63] openrisc: Define memory barrier mb Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 48/63] scsi: pm80xx: Fix drives missing during rmmod/insmod loop Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 49/63] btrfs: release path before starting transaction when cloning inline extent Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 50/63] btrfs: do not BUG_ON in link_to_fixup_dir Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 51/63] ALSA: dice: disable double_pcm_frames mode for M-Audio Profire 610, 2626 and Avid M-Box 3 Pro Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 52/63] platform/x86: hp-wireless: add AMD's hardware id to the supported list Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 53/63] platform/x86: intel_punit_ipc: Append MODULE_DEVICE_TABLE for ACPI Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 54/63] platform/x86: touchscreen_dmi: Add info for the Mediacom Winpad 7.0 W700 tablet Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 55/63] SMB3: incorrect file id in requests compounded with open Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 56/63] drm/amd/display: Disconnect non-DP with no EDID Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 57/63] drm/amd/amdgpu: fix refcount leak Sasha Levin
2021-05-24 14:46 ` Sasha Levin [this message]
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 59/63] drm/amd/amdgpu: fix a potential deadlock in gpu reset Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 60/63] drm/amdgpu: stop touching sched.ready in the backend Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 61/63] platform/x86: touchscreen_dmi: Add info for the Chuwi Hi10 Pro (CWI529) tablet Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 62/63] block: fix a race between del_gendisk and BLKRRPART Sasha Levin
2021-05-24 14:46 ` [PATCH AUTOSEL 5.12 63/63] linux/bits.h: fix compilation error with GENMASK Sasha Levin
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