CVE-2026-68260
CVE-2026-68260: 1 tracked advisory record across Red Hat. Compare vendor sources.
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Red Hat
1 advisory- Advisory severityMedium5.5
Medium [CVE-2026-68260] acquire vm_ctx->lock before mapping memory to GPU VM
CVE-2026-68260Source published Source updated
In the Linux kernel, the following vulnerability has been resolved: drm/imagination: acquire vm_ctx->lock before mapping memory to GPU VM The drm gpuvm code doesn't protect find operation against map operation, and the driver needs to ensure a map operation shouldn't happen when a find operation is in progress. In some cases a find operation will be in progress when doing map/unmap operations, and the find operation will do a NULL pointer dereference. An example of the stack trace of such NULL dereference is shown below: ``` Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000010 [] drm_gpuva_find+0x28/0x6c [drm_gpuvm] [] pvr_vm_unmap+0x34/0x68 [powervr] [] pvr_ioctl_vm_unmap+0x2e/0x50 [powervr] [] drm_ioctl_kernel+0x8e/0xdc []…
- Affected products in this advisory
- Red Hat Enterprise Linux for NVIDIA 26
- Red Hat package: kernel
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- No fixed-version detail extracted. This does not mean no fix exists.
- Mitigation guidance
- No mitigation guidance extracted; consult the source.
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