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linux/drivers/accel/amdxdna
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Lizhi Hou c69dbbf021 accel/amdxdna: Fix potential NULL pointer dereference of abo->client 
Closing a BO handle clears abo->client, while the underlying GEM object
may remain alive due to internal kernel references. As a result, code
executed after the BO handle is closed may dereference a NULL abo->client
pointer.

Remove accesses to abo->client from code paths that may execute after the
BO handle has been closed.

Fixes: d76856beb4 ("accel/amdxdna: Refactor GEM BO handling and add helper APIs for address retrieval")
Reviewed-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20260707201556.562191-1-lizhi.hou@amd.com
2026-07-07 20:49:28 -07:00
..
aie_psp.c accel/amdxdna: Add AIE4 firmware loading 2026-04-01 10:27:42 -07:00
aie_smu.c accel/amdxdna: Create common SMU interfaces for AIE2 and AIE4 2026-04-01 10:44:51 -07:00
aie.c accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie.h accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie2_ctx.c accel/amdxdna: Fix hardware context race in amdxdna_update_heap() 2026-07-07 10:04:51 -07:00
aie2_error.c accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie2_message.c accel/amdxdna: Fix potential NULL pointer dereference of abo->client 2026-07-07 20:49:28 -07:00
aie2_msg_priv.h accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
aie2_pci.c drm-next for 7.2-rc1 2026-06-17 10:21:00 +01:00
aie2_pci.h accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
aie2_pm.c accel/amdxdna: Add configuring low and medium power mode 2026-04-27 09:04:51 -07:00
aie2_solver.c accel/amdxdna: Set default DPM level based on QoS for temporal-only mode 2026-04-27 09:04:34 -07:00
aie2_solver.h accel/amdxdna: Enhance power management settings 2024-12-16 15:50:32 -06:00
aie4_ctx.c accel/amdxdna: Add command doorbell and wait support 2026-05-07 14:07:34 -07:00
aie4_host_queue.h accel/amdxdna: Add command doorbell and wait support 2026-05-07 14:07:34 -07:00
aie4_message.c accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie4_msg_priv.h accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie4_pci.c accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie4_pci.h accel/amdxdna: Add AIE4 work buffer initialization 2026-05-07 14:09:33 -07:00
aie4_sriov.c accel/amdxdna: Add basic support for AIE4 devices 2026-04-01 10:11:53 -07:00
amdxdna_cbuf.c accel/amdxdna: Add carveout memory support for non-IOMMU systems 2026-05-05 08:27:04 -07:00
amdxdna_cbuf.h accel/amdxdna: Add carveout memory support for non-IOMMU systems 2026-05-05 08:27:04 -07:00
amdxdna_ctx.c accel/amdxdna: Fix hardware context race in amdxdna_update_heap() 2026-07-07 10:04:51 -07:00
amdxdna_ctx.h accel/amdxdna: Fix use-after-free in debug BO command handling 2026-07-01 14:57:45 -07:00
amdxdna_debugfs.c accel/amdxdna: Add carveout memory support for non-IOMMU systems 2026-05-05 08:27:04 -07:00
amdxdna_debugfs.h accel/amdxdna: Add carveout memory support for non-IOMMU systems 2026-05-05 08:27:04 -07:00
amdxdna_error.h accel/amdxdna: Support getting last hardware error 2025-10-16 09:32:48 -07:00
amdxdna_gem.c accel/amdxdna: Fix potential NULL pointer dereference of abo->client 2026-07-07 20:49:28 -07:00
amdxdna_gem.h accel/amdxdna: Fix potential NULL pointer dereference of abo->client 2026-07-07 20:49:28 -07:00
amdxdna_iommu.c accel/amdxdna: Fix iommu domain lifetime race during device removal 2026-06-29 10:44:03 -07:00
amdxdna_mailbox_helper.c accel/amdxdna: Remove casting mailbox payload pointer 2025-01-13 14:21:39 -06:00
amdxdna_mailbox_helper.h accel/amdxdna: Add IOCTL parameter for telemetry data 2025-11-04 09:04:21 -08:00
amdxdna_mailbox.c accel/amdxdna: Improve tracing for job lifecycle and mailbox RX worker 2026-04-22 08:35:21 -07:00
amdxdna_mailbox.h accel/amdxdna: Add basic support for AIE4 devices 2026-04-01 10:11:53 -07:00
amdxdna_pci_drv.c accel/amdxdna: Check init_srcu_struct() return value 2026-07-07 20:49:19 -07:00
amdxdna_pci_drv.h accel/amdxdna: Fix amdxdna_client lifetime race during device removal 2026-06-29 10:33:30 -07:00
amdxdna_pm.c accel/amdxdna: Fix dead lock for suspend and resume 2026-02-23 09:24:17 -08:00
amdxdna_pm.h accel/amdxdna: Fix dead lock for suspend and resume 2026-02-23 09:24:17 -08:00
amdxdna_sysfs.c accel/amdxdna: Get device revision to derive VBNV string 2026-04-17 09:13:40 -07:00
amdxdna_ubuf.c Merge drm/drm-next into drm-misc-next 2026-05-28 11:27:53 +02:00
amdxdna_ubuf.h accel/amdxdna: Refactor GEM BO handling and add helper APIs for address retrieval 2026-03-20 22:12:49 -07:00
Kconfig
Makefile accel/amdxdna: Add AIE4 VF hardware context create and destroy 2026-05-07 14:07:34 -07:00
npu1_regs.c accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
npu3_regs.c accel/amdxdna: Add command doorbell and wait support 2026-05-07 14:07:34 -07:00
npu4_regs.c accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
npu5_regs.c accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
npu6_regs.c accel/amdxdna: Add expandable device heap support 2026-05-18 16:03:57 -07:00
TODO accel/amdxdna: Support firmware debug buffer 2025-10-20 09:07:12 -07:00