CVE-2025-39739

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> iommu/arm-smmu-qcom: Add SM6115 MDSS compatible<br /> <br /> Add the SM6115 MDSS compatible to clients compatible list, as it also<br /> needs that workaround.<br /> Without this workaround, for example, QRB4210 RB2 which is based on<br /> SM4250/SM6115 generates a lot of smmu unhandled context faults during<br /> boot:<br /> <br /> arm_smmu_context_fault: 116854 callbacks suppressed<br /> arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,<br /> iova=0x5c0ec600, fsynr=0x320021, cbfrsynra=0x420, cb=5<br /> arm-smmu c600000.iommu: FSR = 00000402 [Format=2 TF], SID=0x420<br /> arm-smmu c600000.iommu: FSYNR0 = 00320021 [S1CBNDX=50 PNU PLVL=1]<br /> arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,<br /> iova=0x5c0d7800, fsynr=0x320021, cbfrsynra=0x420, cb=5<br /> arm-smmu c600000.iommu: FSR = 00000402 [Format=2 TF], SID=0x420<br /> <br /> and also failed initialisation of lontium lt9611uxc, gpu and dpu is<br /> observed:<br /> (binding MDSS components triggered by lt9611uxc have failed)<br /> <br /> ------------[ cut here ]------------<br /> !aspace<br /> WARNING: CPU: 6 PID: 324 at drivers/gpu/drm/msm/msm_gem_vma.c:130 msm_gem_vma_init+0x150/0x18c [msm]<br /> Modules linked in: ... (long list of modules)<br /> CPU: 6 UID: 0 PID: 324 Comm: (udev-worker) Not tainted 6.15.0-03037-gaacc73ceeb8b #4 PREEMPT<br /> Hardware name: Qualcomm Technologies, Inc. QRB4210 RB2 (DT)<br /> pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)<br /> pc : msm_gem_vma_init+0x150/0x18c [msm]<br /> lr : msm_gem_vma_init+0x150/0x18c [msm]<br /> sp : ffff80008144b280<br /> ...<br /> Call trace:<br /> msm_gem_vma_init+0x150/0x18c [msm] (P)<br /> get_vma_locked+0xc0/0x194 [msm]<br /> msm_gem_get_and_pin_iova_range+0x4c/0xdc [msm]<br /> msm_gem_kernel_new+0x48/0x160 [msm]<br /> msm_gpu_init+0x34c/0x53c [msm]<br /> adreno_gpu_init+0x1b0/0x2d8 [msm]<br /> a6xx_gpu_init+0x1e8/0x9e0 [msm]<br /> adreno_bind+0x2b8/0x348 [msm]<br /> component_bind_all+0x100/0x230<br /> msm_drm_bind+0x13c/0x3d0 [msm]<br /> try_to_bring_up_aggregate_device+0x164/0x1d0<br /> __component_add+0xa4/0x174<br /> component_add+0x14/0x20<br /> dsi_dev_attach+0x20/0x34 [msm]<br /> dsi_host_attach+0x58/0x98 [msm]<br /> devm_mipi_dsi_attach+0x34/0x90<br /> lt9611uxc_attach_dsi.isra.0+0x94/0x124 [lontium_lt9611uxc]<br /> lt9611uxc_probe+0x540/0x5fc [lontium_lt9611uxc]<br /> i2c_device_probe+0x148/0x2a8<br /> really_probe+0xbc/0x2c0<br /> __driver_probe_device+0x78/0x120<br /> driver_probe_device+0x3c/0x154<br /> __driver_attach+0x90/0x1a0<br /> bus_for_each_dev+0x68/0xb8<br /> driver_attach+0x24/0x30<br /> bus_add_driver+0xe4/0x208<br /> driver_register+0x68/0x124<br /> i2c_register_driver+0x48/0xcc<br /> lt9611uxc_driver_init+0x20/0x1000 [lontium_lt9611uxc]<br /> do_one_initcall+0x60/0x1d4<br /> do_init_module+0x54/0x1fc<br /> load_module+0x1748/0x1c8c<br /> init_module_from_file+0x74/0xa0<br /> __arm64_sys_finit_module+0x130/0x2f8<br /> invoke_syscall+0x48/0x104<br /> el0_svc_common.constprop.0+0xc0/0xe0<br /> do_el0_svc+0x1c/0x28<br /> el0_svc+0x2c/0x80<br /> el0t_64_sync_handler+0x10c/0x138<br /> el0t_64_sync+0x198/0x19c<br /> ---[ end trace 0000000000000000 ]---<br /> msm_dpu 5e01000.display-controller: [drm:msm_gpu_init [msm]] *ERROR* could not allocate memptrs: -22<br /> msm_dpu 5e01000.display-controller: failed to load adreno gpu<br /> platform a400000.remoteproc:glink-edge:apr:service@7:dais: Adding to iommu group 19<br /> msm_dpu 5e01000.display-controller: failed to bind 5900000.gpu (ops a3xx_ops [msm]): -22<br /> msm_dpu 5e01000.display-controller: adev bind failed: -22<br /> lt9611uxc 0-002b: failed to attach dsi to host<br /> lt9611uxc 0-002b: probe with driver lt9611uxc failed with error -22