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In the Linux kernel, the following vulnerability has been resolved:
drm/gpusvm: Fix unbalanced unlock in drm_gpusvm_scan_mm()
There is a unbalanced lock/unlock to gpusvm notifier lock: [ 931.045868] ===================================== [ 931.046509] WARNING: bad unlock balance detected! [ 931.047149] 6.19.0-rc6+xe-**************** #9 Tainted: G U [ 931.048150] ------------------------------------- [ 931.048790] kworker/u5:0/51 is trying to release lock (&gpusvm->notifier_lock) at: [ 931.049801] [<ffffffffa090c0d8>] drm_gpusvm_scan_mm+0x188/0x460 [drm_gpusvm_helper] [ 931.050802] but there are no more locks to release! [ 931.051463]
The drm_gpusvm_notifier_unlock() sits under err_free label and the first jump to err_free is just before calling the drm_gpusvm_notifier_lock() causing unbalanced unlock.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Redhat_linux | — | No solution exists | Jul 23, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-azure-fdeUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-oracle-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-aws-64kUpgrade linux-image-oracleUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-aws-64k-7.0Upgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-gcp-7.0Upgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-7.0.0-1009-awsUpgrade linux-image-ibmUpgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-gcpUpgrade linux-image-nvidiaUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-gcp-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-raspiUpgrade linux-image-nvidia-7.0Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-nvidia-bosUpgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-raspi-7.0Upgrade linux-image-azure-7.0Upgrade linux-image-aws-7.0Upgrade linux-image-oracle-64kUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-azureUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-aws | Jul 21, 2026 | Jul 20, 2026 |
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