lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Message-ID: <2025091138-CVE-2025-39739-941e@gregkh>
Date: Thu, 11 Sep 2025 18:52:40 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-cve-announce@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...nel.org>
Subject: CVE-2025-39739: iommu/arm-smmu-qcom: Add SM6115 MDSS compatible

From: Greg Kroah-Hartman <gregkh@...nel.org>

Description
===========

In the Linux kernel, the following vulnerability has been resolved:

iommu/arm-smmu-qcom: Add SM6115 MDSS compatible

Add the SM6115 MDSS compatible to clients compatible list, as it also
needs that workaround.
Without this workaround, for example, QRB4210 RB2 which is based on
SM4250/SM6115 generates a lot of smmu unhandled context faults during
boot:

arm_smmu_context_fault: 116854 callbacks suppressed
arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,
iova=0x5c0ec600, fsynr=0x320021, cbfrsynra=0x420, cb=5
arm-smmu c600000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x420
arm-smmu c600000.iommu: FSYNR0 = 00320021 [S1CBNDX=50 PNU PLVL=1]
arm-smmu c600000.iommu: Unhandled context fault: fsr=0x402,
iova=0x5c0d7800, fsynr=0x320021, cbfrsynra=0x420, cb=5
arm-smmu c600000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x420

and also failed initialisation of lontium lt9611uxc, gpu and dpu is
observed:
(binding MDSS components triggered by lt9611uxc have failed)

 ------------[ cut here ]------------
 !aspace
 WARNING: CPU: 6 PID: 324 at drivers/gpu/drm/msm/msm_gem_vma.c:130 msm_gem_vma_init+0x150/0x18c [msm]
 Modules linked in: ... (long list of modules)
 CPU: 6 UID: 0 PID: 324 Comm: (udev-worker) Not tainted 6.15.0-03037-gaacc73ceeb8b #4 PREEMPT
 Hardware name: Qualcomm Technologies, Inc. QRB4210 RB2 (DT)
 pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
 pc : msm_gem_vma_init+0x150/0x18c [msm]
 lr : msm_gem_vma_init+0x150/0x18c [msm]
 sp : ffff80008144b280
  		...
 Call trace:
  msm_gem_vma_init+0x150/0x18c [msm] (P)
  get_vma_locked+0xc0/0x194 [msm]
  msm_gem_get_and_pin_iova_range+0x4c/0xdc [msm]
  msm_gem_kernel_new+0x48/0x160 [msm]
  msm_gpu_init+0x34c/0x53c [msm]
  adreno_gpu_init+0x1b0/0x2d8 [msm]
  a6xx_gpu_init+0x1e8/0x9e0 [msm]
  adreno_bind+0x2b8/0x348 [msm]
  component_bind_all+0x100/0x230
  msm_drm_bind+0x13c/0x3d0 [msm]
  try_to_bring_up_aggregate_device+0x164/0x1d0
  __component_add+0xa4/0x174
  component_add+0x14/0x20
  dsi_dev_attach+0x20/0x34 [msm]
  dsi_host_attach+0x58/0x98 [msm]
  devm_mipi_dsi_attach+0x34/0x90
  lt9611uxc_attach_dsi.isra.0+0x94/0x124 [lontium_lt9611uxc]
  lt9611uxc_probe+0x540/0x5fc [lontium_lt9611uxc]
  i2c_device_probe+0x148/0x2a8
  really_probe+0xbc/0x2c0
  __driver_probe_device+0x78/0x120
  driver_probe_device+0x3c/0x154
  __driver_attach+0x90/0x1a0
  bus_for_each_dev+0x68/0xb8
  driver_attach+0x24/0x30
  bus_add_driver+0xe4/0x208
  driver_register+0x68/0x124
  i2c_register_driver+0x48/0xcc
  lt9611uxc_driver_init+0x20/0x1000 [lontium_lt9611uxc]
  do_one_initcall+0x60/0x1d4
  do_init_module+0x54/0x1fc
  load_module+0x1748/0x1c8c
  init_module_from_file+0x74/0xa0
  __arm64_sys_finit_module+0x130/0x2f8
  invoke_syscall+0x48/0x104
  el0_svc_common.constprop.0+0xc0/0xe0
  do_el0_svc+0x1c/0x28
  el0_svc+0x2c/0x80
  el0t_64_sync_handler+0x10c/0x138
  el0t_64_sync+0x198/0x19c
 ---[ end trace 0000000000000000 ]---
 msm_dpu 5e01000.display-controller: [drm:msm_gpu_init [msm]] *ERROR* could not allocate memptrs: -22
 msm_dpu 5e01000.display-controller: failed to load adreno gpu
 platform a400000.remoteproc:glink-edge:apr:service@7:dais: Adding to iommu group 19
 msm_dpu 5e01000.display-controller: failed to bind 5900000.gpu (ops a3xx_ops [msm]): -22
 msm_dpu 5e01000.display-controller: adev bind failed: -22
 lt9611uxc 0-002b: failed to attach dsi to host
 lt9611uxc 0-002b: probe with driver lt9611uxc failed with error -22

The Linux kernel CVE team has assigned CVE-2025-39739 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 6.2 with commit 3581b7062cec5a40b54acbd0dc28321d3aaa9fc7 and fixed in 6.6.103 with commit a11b6ee7cab87c4d75e95ac9e7443155f7cecb55
	Issue introduced in 6.2 with commit 3581b7062cec5a40b54acbd0dc28321d3aaa9fc7 and fixed in 6.12.43 with commit c62963370627f3aa22d991e0a3e93f5d61ad9b08
	Issue introduced in 6.2 with commit 3581b7062cec5a40b54acbd0dc28321d3aaa9fc7 and fixed in 6.15.11 with commit 3d470cf40c9265092eb33c3d3d9dc8bad452bcc2
	Issue introduced in 6.2 with commit 3581b7062cec5a40b54acbd0dc28321d3aaa9fc7 and fixed in 6.16.2 with commit e52bbaa209ebff3bf7a10c17ba7d3e1d3cb0fe61
	Issue introduced in 6.2 with commit 3581b7062cec5a40b54acbd0dc28321d3aaa9fc7 and fixed in 6.17-rc1 with commit f7fa8520f30373ce99c436c4d57c76befdacbef3

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2025-39739
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/a11b6ee7cab87c4d75e95ac9e7443155f7cecb55
	https://git.kernel.org/stable/c/c62963370627f3aa22d991e0a3e93f5d61ad9b08
	https://git.kernel.org/stable/c/3d470cf40c9265092eb33c3d3d9dc8bad452bcc2
	https://git.kernel.org/stable/c/e52bbaa209ebff3bf7a10c17ba7d3e1d3cb0fe61
	https://git.kernel.org/stable/c/f7fa8520f30373ce99c436c4d57c76befdacbef3

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ