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Andrzej Hajda 8017a27cec drm/i915: mark requests for GuC virtual engines to avoid use-after-free 
[ Upstream commit 5eefc5307c ]

References to i915_requests may be trapped by userspace inside a
sync_file or dmabuf (dma-resv) and held indefinitely across different
proceses. To counter-act the memory leaks, we try to not to keep
references from the request past their completion.
On the other side on fence release we need to know if rq->engine
is valid and points to hw engine (true for non-virtual requests).
To make it possible extra bit has been added to rq->execution_mask,
for marking virtual engines.

Fixes: bcb9aa45d5 ("Revert "drm/i915: Hold reference to intel_context over life of i915_request"")
Signed-off-by: Chris Wilson <chris.p.wilson@linux.intel.com>
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230821153035.3903006-1-andrzej.hajda@intel.com
(cherry picked from commit 280410677af763f3871b93e794a199cfcf6fb580)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-09-19 12:28:00 +02:00
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accessibility
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acpi ACPI: x86: s2idle: Fix a logic error parsing AMD constraints table 2023-09-13 09:42:29 +02:00
amba amba: bus: fix refcount leak 2023-09-13 09:42:56 +02:00
android binder: fix memory leak in binder_init() 2023-08-16 18:27:24 +02:00
ata ata: pata_arasan_cf: Use dev_err_probe() instead dev_err() in data_xfer() 2023-09-13 09:42:23 +02:00
atm
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auxdisplay
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base drivers: base: Free devm resources when unregistering a device 2023-09-13 09:42:54 +02:00
bcma
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block null_blk: fix poll request timeout handling 2023-09-19 12:27:56 +02:00
bluetooth Bluetooth: btusb: Do not call kfree_skb() under spin_lock_irqsave() 2023-09-13 09:42:34 +02:00
bus bus: mhi: host: Skip MHI reset if device is in RDDM 2023-09-19 12:27:58 +02:00
cdrom
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char tpm_crb: Fix an error handling path in crb_acpi_add() 2023-09-19 12:27:58 +02:00
clk clk: qcom: mss-sc7180: fix missing resume during probe 2023-09-19 12:27:57 +02:00
clocksource
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comedi
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connector
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counter
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cpufreq cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug 2023-09-13 09:43:04 +02:00
cpuidle powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT 2023-09-13 09:42:48 +02:00
crypto crypto: stm32 - fix loop iterating through scatterlist for DMA 2023-09-13 09:43:04 +02:00
cxl
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dax
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dca
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devfreq PM / devfreq: Fix leak in devfreq_dev_release() 2023-09-13 09:42:59 +02:00
dio
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dma dmaengine: ste_dma40: Add missing IRQ check in d40_probe 2023-09-13 09:42:58 +02:00
dma-buf dma-buf/sw_sync: Avoid recursive lock during fence signal 2023-08-30 16:11:12 +02:00
edac EDAC/igen6: Fix the issue of no error events 2023-09-13 09:42:45 +02:00
eisa
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extcon extcon: cht_wc: add POWER_SUPPLY dependency 2023-09-13 09:42:53 +02:00
firewire firewire: net: fix use after free in fwnet_finish_incoming_packet() 2023-08-23 17:52:24 +02:00
firmware arm64: sdei: abort running SDEI handlers during crash 2023-09-13 09:43:03 +02:00
fpga
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fsi fsi: aspeed: Reset master errors after CFAM reset 2023-09-13 09:42:54 +02:00
gnss
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gpio gpio: sim: pass the GPIO device's software node to irq domain 2023-08-30 16:11:13 +02:00
gpu drm/i915: mark requests for GuC virtual engines to avoid use-after-free 2023-09-19 12:28:00 +02:00
greybus
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hid HID: multitouch: Correct devm device reference for hidinput input_dev name 2023-09-13 09:42:57 +02:00
hsi
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hte
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hv Drivers: hv: vmbus: Don't dereference ACPI root object handle 2023-09-13 09:42:59 +02:00
hwmon hwmon: (tmp513) Fix the channel number in tmp51x_is_visible() 2023-09-13 09:42:35 +02:00
hwspinlock
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hwtracing coresight: trbe: Fix TRBE potential sleep in atomic context 2023-09-13 09:42:56 +02:00
i2c treewide: Fix probing of devices in DT overlays 2023-09-13 09:43:05 +02:00
i3c i3c: master: svc: fix probe failure when no i3c device exist 2023-09-13 09:43:01 +02:00
idle
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iio iio: accel: adxl313: Fix adxl313_i2c_id[] table 2023-09-13 09:42:52 +02:00
infiniband RDMA/efa: Fix wrong resources deallocation order 2023-09-13 09:42:57 +02:00
input Input: tca6416-keypad - fix interrupt enable disbalance 2023-09-19 12:27:59 +02:00
interconnect interconnect: qcom: bcm-voter: Use enable_maks for keepalive voting 2023-09-13 09:42:56 +02:00
iommu iommu/vt-d: Fix to flush cache of PASID directory table 2023-09-13 09:42:54 +02:00
ipack
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irqchip irqchip/loongson-eiointc: Fix return value checking of eiointc_index 2023-09-13 09:42:29 +02:00
isdn mISDN: Update parameter type of dsp_cmx_send() 2023-08-16 18:27:26 +02:00
leds leds: trigger: tty: Do not use LED_ON/OFF constants, use led_blink_set_oneshot instead 2023-09-13 09:42:58 +02:00
macintosh
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mailbox mailbox: qcom-ipcc: fix incorrect num_chans counting 2023-09-19 12:27:58 +02:00
mcb
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md md: fix regression for null-ptr-deference in __md_stop() 2023-09-13 09:43:05 +02:00
media media: venus: hfi_venus: Write to VIDC_CTRL_INIT after unmasking interrupts 2023-09-13 09:43:01 +02:00
memory
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memstick
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message
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mfd
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misc accel/habanalabs: add pci health check during heartbeat 2023-08-23 17:52:21 +02:00
mmc mmc: renesas_sdhi: register irqs before registering controller 2023-09-13 09:43:03 +02:00
most
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mtd mtd: rawnand: fsmc: handle clk prepare error in fsmc_nand_resume() 2023-09-13 09:42:58 +02:00
mux
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net r8169: fix ASPM-related issues on a number of systems with NIC version from RTL8168h 2023-09-13 09:43:03 +02:00
nfc
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ntb ntb: Fix calculation ntb_transport_tx_free_entry() 2023-09-13 09:43:02 +02:00
nubus
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nvdimm nvdimm: Fix dereference after free in register_nvdimm_pmu() 2023-09-13 09:42:47 +02:00
nvme nvme-rdma: fix potential unbalanced freeze & unfreeze 2023-08-16 18:27:30 +02:00
nvmem
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of treewide: Fix probing of devices in DT overlays 2023-09-13 09:43:05 +02:00
opp OPP: Fix passing 0 to PTR_ERR in _opp_attach_genpd() 2023-09-13 09:42:28 +02:00
parisc parisc: led: Reduce CPU overhead for disk & lan LED computation 2023-09-19 12:27:57 +02:00
parport
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pci Revert "PCI: Mark NVIDIA T4 GPUs to avoid bus reset" 2023-09-13 09:43:02 +02:00
pcmcia pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db() 2023-08-23 17:52:24 +02:00
peci
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perf perf/imx_ddr: don't enable counter0 if none of 4 counters are used 2023-09-13 09:42:29 +02:00
phy phy/rockchip: inno-hdmi: do not power on rk3328 post pll on reg write 2023-09-13 09:42:58 +02:00
pinctrl pinctrl: cherryview: fix address_space_handler() argument 2023-09-19 12:27:57 +02:00
platform platform/chrome: chromeos_acpi: print hex string for ACPI_TYPE_BUFFER 2023-09-13 09:43:03 +02:00
pnp
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power
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powercap
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pps
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ps3
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ptp
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pwm pwm: lpc32xx: Remove handling of PWM channels 2023-09-19 12:28:00 +02:00
rapidio
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ras
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regulator
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remoteproc
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reset
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rpmsg rpmsg: glink: Add check for kstrdup 2023-09-13 09:42:58 +02:00
rtc rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff 2023-09-06 21:27:00 +01:00
s390 s390/dasd: fix string length handling 2023-09-13 09:43:03 +02:00
sbus
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scsi scsi: qla2xxx: Fix firmware resource tracking 2023-09-19 12:27:56 +02:00
sh
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siox
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slimbus
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soc soc: qcom: qmi_encdec: Restrict string length in decode 2023-09-19 12:27:57 +02:00
soundwire soundwire: fix enumeration completion 2023-08-03 10:24:15 +02:00
spi treewide: Fix probing of devices in DT overlays 2023-09-13 09:43:05 +02:00
spmi
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ssb
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staging media: rkvdec: increase max supported height for H.264 2023-09-13 09:42:50 +02:00
target
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tc
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tee
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thermal thermal/of: Fix potential uninitialized value access 2023-09-13 09:42:29 +02:00
thunderbolt thunderbolt: Fix a backport error for display flickering issue 2023-09-02 09:16:20 +02:00
tty serial: sc16is7xx: fix regression with GPIO configuration 2023-09-13 09:43:05 +02:00
ufs scsi: ufs: Try harder to change the power mode 2023-09-13 09:42:20 +02:00
uio
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usb USB: core: Fix oversight in SuperSpeed initialization 2023-09-13 09:43:04 +02:00
vdpa vdpa: Enable strict validation for netlinks ops 2023-08-23 17:52:31 +02:00
vfio vfio/type1: fix cap_migration information leak 2023-09-13 09:42:47 +02:00
vhost
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video backlight: gpio_backlight: Drop output GPIO direction check for initial power state 2023-09-19 12:27:59 +02:00
virt
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virtio virtio_ring: fix avail_wrap_counter in virtqueue_add_packed 2023-09-13 09:42:59 +02:00
vlynq
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w1
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watchdog watchdog: intel-mid_wdt: add MODULE_ALIAS() to allow auto-load 2023-09-19 12:28:00 +02:00
xen xen: speed up grant-table reclaim 2023-08-03 10:24:14 +02:00
zorro
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Kconfig
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Makefile
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