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2d76319c4cbb19eccfca71fa05d40a6b4ce7fc3d
linux/drivers
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Andi Shyti 2d76319c4c dma-buf: fix UAF in dma_buf_put() tracepoint 
dma_buf_put() may drop the final file reference via fput(), which
can free the dma-buf. The new tracepoint invocation was added
after fput(), and DMA_BUF_TRACE() dereferences dmabuf and takes
dmabuf->name_lock.

This leads to a use-after-free on the final put, visible for
example as a spinlock bad magic fault on a poisoned 0x6b6b6b...
lock.

Move the dma_buf_put tracepoint before fput().

Reported-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Fixes: 281a226314 ("dma-buf: add some tracepoints to debug.")
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260408123916.2604101-1-andi.shyti@kernel.org
2026-04-13 15:59:22 +02:00
..
accel
accel: ethosu: Add hardware dependency hint
2026-04-02 15:18:14 -05:00
accessibility
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
acpi
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2026-02-22 08:26:33 -08:00
amba
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2026-02-21 17:09:51 -08:00
android
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ata
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2026-02-21 20:03:00 -08:00
atm
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2026-02-22 08:26:33 -08:00
auxdisplay
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base
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bcma
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block
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bluetooth
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bus
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cache
…
cdrom
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cdx
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char
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2026-02-21 20:03:00 -08:00
clk
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2026-02-22 08:26:33 -08:00
clocksource
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comedi
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connector
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counter
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cpufreq
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cpuidle
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crypto
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cxl
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2026-02-21 17:09:51 -08:00
dax
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2026-02-21 17:09:51 -08:00
dca
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
devfreq
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2026-02-21 20:03:00 -08:00
dibs
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2026-02-21 17:09:51 -08:00
dio
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2026-02-21 17:09:51 -08:00
dma
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2026-02-21 20:03:00 -08:00
dma-buf
dma-buf: fix UAF in dma_buf_put() tracepoint
2026-04-13 15:59:22 +02:00
dpll
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2026-02-21 17:09:51 -08:00
edac
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eisa
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extcon
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firewire
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firmware
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2026-02-21 20:03:00 -08:00
fpga
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2026-02-21 20:03:00 -08:00
fsi
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2026-02-21 17:09:51 -08:00
fwctl
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2026-02-21 17:09:51 -08:00
gnss
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2026-02-21 17:09:51 -08:00
gpib
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2026-02-21 20:03:00 -08:00
gpio
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2026-02-21 20:03:00 -08:00
gpu
drm/bridge: stm_lvds: Do not fail atomic_check on disabled connector
2026-04-13 12:52:33 +02:00
greybus
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2026-02-21 20:03:00 -08:00
hid
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hsi
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hte
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2026-02-21 17:09:51 -08:00
hv
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2026-02-22 08:26:33 -08:00
hwmon
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2026-02-22 08:26:33 -08:00
hwspinlock
Merge tag 'soc-drivers-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2026-02-10 20:45:30 -08:00
hwtracing
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2026-02-21 20:03:00 -08:00
i2c
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2026-02-21 20:03:00 -08:00
i3c
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2026-02-21 20:03:00 -08:00
idle
intel_idle: Add C-states validation
2026-01-07 21:17:43 +01:00
iio
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
infiniband
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2026-02-22 08:26:33 -08:00
input
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interconnect
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2026-02-21 17:09:51 -08:00
iommu
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ipack
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2026-02-21 20:03:00 -08:00
irqchip
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isdn
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2026-02-21 20:03:00 -08:00
leds
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2026-02-21 17:09:51 -08:00
macintosh
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2026-02-21 20:03:00 -08:00
mailbox
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
mcb
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
md
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media
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memory
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memstick
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message
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mfd
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2026-02-21 20:03:00 -08:00
misc
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2026-02-21 20:03:00 -08:00
mmc
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most
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mtd
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mux
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2026-02-21 17:09:51 -08:00
net
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2026-02-22 08:26:33 -08:00
nfc
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2026-02-21 17:09:51 -08:00
ntb
Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2026-02-21 11:02:58 -08:00
nubus
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
nvdimm
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nvme
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nvmem
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of
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opp
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parisc
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parport
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pci
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2026-02-21 20:03:00 -08:00
pcmcia
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peci
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2026-02-21 17:09:51 -08:00
perf
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2026-02-21 20:03:00 -08:00
phy
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2026-02-21 17:09:51 -08:00
pinctrl
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2026-02-21 20:03:00 -08:00
platform
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pmdomain
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pnp
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2026-02-21 17:09:51 -08:00
power
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2026-02-21 17:09:51 -08:00
powercap
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pps
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ps3
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ptp
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pwm
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2026-02-21 17:09:51 -08:00
rapidio
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2026-02-21 17:09:51 -08:00
ras
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2026-02-21 17:09:51 -08:00
regulator
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2026-02-21 20:03:00 -08:00
remoteproc
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resctrl
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reset
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rpmsg
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2026-02-21 17:09:51 -08:00
rtc
Merge tag 'rtc-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
2026-02-22 09:43:11 -08:00
s390
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sbus
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scsi
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sh
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siox
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slimbus
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soc
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soundwire
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spi
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spmi
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ssb
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staging
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target
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tc
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tee
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thermal
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thunderbolt
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tty
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ufs
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uio
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usb
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vdpa
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vfio
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2026-02-21 20:03:00 -08:00
vhost
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video
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virt
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virtio
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w1
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watchdog
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xen
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zorro
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2026-02-21 17:09:51 -08:00
Kconfig
…
Makefile
phy: enter drivers/phy/Makefile even without CONFIG_GENERIC_PHY
2026-02-04 20:45:26 +05:30