OP-TEE June 2026

op-tee@lists.trustedfirmware.org

15 participants
16 discussions

OP-TEE Contributions Forum, monthly meeting June 23

by Jens Wiklander

Hi, Tomorrow, Tuesday, it's time for another OP-TEE contributors' monthly meeting. For time and connection details, see the calendar at https://www.trustedfirmware.org/meetings/ Maintainers in July: - Jens is unavailable most or all of July OP-TEE release July 17: - Someone needs to fill in for Jens, or we cancel or postpone the release Next OP-TEE Contributors Forum, July 28 - Can someone else host the meeting, or should we cancel it? Adding sections in MAINTAINERS - Core reviewers - Various TAs - Updating other parts Any updates for Kconfig support? Any other topics? Cheers, Jens

2 months

Proposal to unify tf.org vulnerability referencing in NVD

by Sandrine Bailleux

Hi everyone, I am sending this email to all tf.org project mailing lists to ensure all maintainers are aware and on board regarding this matter. If you have any concerns or questions, please reply on tf.org Discord #general channel, where I'll create a thread, as I think it will be much easier than dealing with cross-mailing lists emails. Background When a security vulnerability is discovered in one of the trustedfirmware.org projects, it is common to request a "Common Vulnerabilities and Exposures" (CVE) number. This number uniquely references the issue, which can then be searched in the vulnerability databases. One of these databases is NIST's "National Vulnerability Database" (NVD): https://nvd.nist.gov<https://nvd.nist.gov/vuln/detail/CVE-2023-51712> Entering a specific CVE number in NVD search engine will allow you to easily find the details of a specific issue, for example: https://nvd.nist.gov/vuln/detail/CVE-2023-51712 However, sometimes one is not looking for a specific CVE number but rather wants to list all known vulnerabilities affecting a particular project. For this, one can use the Common Platform Enumerations (CPE) search engine: https://nvd.nist.gov/products/cpe/search CPE is a structured naming scheme that includes information like the vendor name, the project name, the version / tag, and so on. See https://nvd.nist.gov/products/cpe for more details. So for example, https://nvd.nist.gov/vuln/detail/CVE-2023-51712 referenced above has the following CPE: cpe:2.3:o:arm:trusted_firmware-m:*:*:*:*:*:*:*:* This basically means * CPE version 2.3 is in use * 'o is the type of project, in this case it stands for Operating Systems (which is probably the closest match for low-level code like TF-M) * 'arm' is the vendor (that is wrong, see below) * 'trusted_firmware-m' is the project name, Problem statement It appears that CPEs used in NVD to reference vulnerabilities in tf.org projects differ a lot across projects. For some projects, there's even multiple of them. Sometimes the vendor is "arm", sometimes it's "linaro", or something else. Some of the TF-A and MbedTLS maintainers have initiated discussions with NVD to get this simplified and unified, but it would make sense to align other tf.org projects as well. Proposal CPE naming rules are that the vendor name should the parent organization of the project. Thus the proposal would be for all tf.org projects to use "trustedfirmware" as the vendor name in their CPE. For example: cpe:2.3:o:trustedfirmware:trusted_firmware-m:*:*:*:*:*:*:*:* cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:* We're only proposing to change the vendor name here ; each project is then free to choose how they want the project name or the type of software project they want to encode there. Thanks for reading, Best regards, Sandrine Afsa

2 months, 1 week

[PATCH v6 0/6] arm_ffa, KVM: Fix FF-A emad offset calculations

by Mostafa Saleh

Hi all, This series fixes the Endpoint Memory Access Descriptor (EMAD) offset calculations and adds the necessary bounds checks for both the core FF-A driver and the pKVM hypervisor. Prior to FF-A version 1.1, the memory region header didn't specify an explicit offset for the EMADs, leading to the assumption that they immediately follow the header. However, from v1.1 onwards, the specification dictates using the ep_mem_offset` field to determine the start of the memory access array. The patches in this series address this by: 1. Updating the core `arm_ffa` firmware driver to correctly calculate the descriptor offset using `ep_mem_offset` rather than defaulting to `sizeof(struct ffa_mem_region)`. It also introduces bounds checking against `max_fragsize`. 2. Enhancing the pKVM hypervisor validation logic to no longer strictly enforce that the descriptor strictly follows the header, aligning it with the driver behavior and the FF-A specification, while also ensuring the offset falls within the mailbox buffer bounds. While addressing these bugs, Sashiko uncovered other issues that were fixed in the same series. All the patches aside from the first one in optee are urgent fixes as they either impact the hypervisor security or kernel stability. Changelog ######### v5->v6: - Add fixes tag - Small clean up make variable declaration reverse christmas tree. v4->v5: - Collect Sudeep Rbs - Add extra patch to check base address alignment. - Remove WARN_ONs in KVM code - Use ffa_emad_size_get() instead of hardcoded size in KVM code. v3 -> v4: - Address review comments and fix Sashiko bugs v2 -> v3: - Fixed typo in nvhe/ffa.c (missing sizeof) v1 -> v2: - For pKVM, removed the strict placement enforcement for `ep_mem_offset` as it is not compliant with the spec, and avoids making assumptions about the driver's memory layout. Link to: ######## v5: https://lore.kernel.org/all/20260526151934.3783707-1-smostafa@google.com/ v4: https://lore.kernel.org/all/20260520204948.2440882-1-smostafa@google.com/ v3: https://lore.kernel.org/all/20260512124442.1899107-1-sebastianene@google.co… v2: https://lore.kernel.org/all/20260430160241.1934777-1-sebastianene@google.co… v1: https://lore.kernel.org/all/ae9KN9nkOgDYJcGP@google.com/T/#t Mostafa Saleh (4): optee: ffa: Add NULL check in optee_ffa_lend_protmem firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit() KVM: arm64: Fix bounds checking in do_ffa_mem_reclaim() KVM: arm64: Ensure FFA ranges are page aligned Sebastian Ene (2): firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation KVM: arm64: Validate the offset to the mem access descriptor arch/arm64/kvm/hyp/nvhe/ffa.c | 38 ++++++++++++++++++++++--------- drivers/firmware/arm_ffa/driver.c | 21 ++++++++++------- drivers/tee/optee/ffa_abi.c | 3 +++ include/linux/arm_ffa.h | 2 +- 4 files changed, 44 insertions(+), 20 deletions(-) -- 2.54.0.746.g67dd491aae-goog

2 months, 1 week

[PATCH v5 0/6] arm_ffa, KVM: Fix FF-A emad offset calculations

by Mostafa Saleh

Hi all, This series fixes the Endpoint Memory Access Descriptor (EMAD) offset calculations and adds the necessary bounds checks for both the core FF-A driver and the pKVM hypervisor. Prior to FF-A version 1.1, the memory region header didn't specify an explicit offset for the EMADs, leading to the assumption that they immediately follow the header. However, from v1.1 onwards, the specification dictates using the ep_mem_offset` field to determine the start of the memory access array. The patches in this series address this by: 1. Updating the core `arm_ffa` firmware driver to correctly calculate the descriptor offset using `ep_mem_offset` rather than defaulting to `sizeof(struct ffa_mem_region)`. It also introduces bounds checking against `max_fragsize`. 2. Enhancing the pKVM hypervisor validation logic to no longer strictly enforce that the descriptor strictly follows the header, aligning it with the driver behavior and the FF-A specification, while also ensuring the offset falls within the mailbox buffer bounds. While addressing these bugs, Sashiko uncovered other issues that were fixed in the same series. Changelog ######### v4->v5: - Collect Sudeep Rbs - Add extra patch to check base address alignment. - Remove WARN_ONs in KVM code - Use ffa_emad_size_get() instead of hardcoded size in KVM code. v3 -> v4: - Address review comments and fix Sashiko bugs v2 -> v3: - Fixed typo in nvhe/ffa.c (missing sizeof) v1 -> v2: - For pKVM, removed the strict placement enforcement for `ep_mem_offset` as it is not compliant with the spec, and avoids making assumptions about the driver's memory layout. Link to: ######## v4: https://lore.kernel.org/all/20260520204948.2440882-1-smostafa@google.com/ v3: https://lore.kernel.org/all/20260512124442.1899107-1-sebastianene@google.co… v2: https://lore.kernel.org/all/20260430160241.1934777-1-sebastianene@google.co… v1: https://lore.kernel.org/all/ae9KN9nkOgDYJcGP@google.com/T/#t Mostafa Saleh (4): optee: ffa: Add NULL check in optee_ffa_lend_protmem firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit() KVM: arm64: Fix bounds checking in do_ffa_mem_reclaim() KVM: arm64: Ensure FFA ranges are page aligned Sebastian Ene (2): firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation KVM: arm64: Validate the offset to the mem access descriptor arch/arm64/kvm/hyp/nvhe/ffa.c | 38 ++++++++++++++++++++++--------- drivers/firmware/arm_ffa/driver.c | 21 ++++++++++------- drivers/tee/optee/ffa_abi.c | 3 +++ include/linux/arm_ffa.h | 2 +- 4 files changed, 44 insertions(+), 20 deletions(-) -- 2.54.0.746.g67dd491aae-goog

2 months, 1 week

[PATCH] MAINTAINERS: .mailmap: update Jens Wiklander's email address

by Jens Wiklander

From: Jens Wiklander <jenswi(a)kernel.org> Update Jens Wiklander's email address to @kernel.org. Cc: Arnd Bergmann <arnd(a)arndb.de> Cc: Sumit Garg <sumit.garg(a)kernel.org> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Jens Wiklander <jenswi(a)kernel.org> --- .mailmap | 1 + MAINTAINERS | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/.mailmap b/.mailmap index a009f73d7ea5..a0f20a6bbe5c 100644 --- a/.mailmap +++ b/.mailmap @@ -395,6 +395,7 @@ Jens Axboe <axboe(a)kernel.dk> <jens.axboe(a)oracle.com> Jens Axboe <axboe(a)kernel.dk> <axboe(a)fb.com> Jens Axboe <axboe(a)kernel.dk> <axboe(a)meta.com> Jens Osterkamp <Jens.Osterkamp(a)de.ibm.com> +Jens Wiklander <jenswi(a)kernel.org> <jens.wiklander(a)linaro.org> Jernej Skrabec <jernej.skrabec(a)gmail.com> <jernej.skrabec(a)siol.net> Jesper Dangaard Brouer <hawk(a)kernel.org> <brouer(a)redhat.com> Jesper Dangaard Brouer <hawk(a)kernel.org> <hawk(a)comx.dk> diff --git a/MAINTAINERS b/MAINTAINERS index e035a3be797c..440f855b95df 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19958,7 +19958,7 @@ W: http://www.onsemi.com F: drivers/net/phy/ncn* OP-TEE DRIVER -M: Jens Wiklander <jens.wiklander(a)linaro.org> +M: Jens Wiklander <jenswi(a)kernel.org> L: op-tee(a)lists.trustedfirmware.org (moderated for non-subscribers) S: Maintained F: Documentation/ABI/testing/sysfs-bus-optee-devices @@ -23303,7 +23303,7 @@ F: Documentation/devicetree/bindings/media/allwinner,sun8i-a83t-de2-rotate.yaml F: drivers/media/platform/sunxi/sun8i-rotate/ RPMB SUBSYSTEM -M: Jens Wiklander <jens.wiklander(a)linaro.org> +M: Jens Wiklander <jenswi(a)kernel.org> L: linux-kernel(a)vger.kernel.org S: Supported F: drivers/misc/rpmb-core.c @@ -26222,7 +26222,7 @@ F: drivers/media/i2c/tw9910.c F: include/media/i2c/tw9910.h TEE SUBSYSTEM -M: Jens Wiklander <jens.wiklander(a)linaro.org> +M: Jens Wiklander <jenswi(a)kernel.org> R: Sumit Garg <sumit.garg(a)kernel.org> L: op-tee(a)lists.trustedfirmware.org (moderated for non-subscribers) S: Maintained -- 2.43.0

2 months, 2 weeks

OP-TEE Contributions Forum, monthly meeting May 26

by Jens Wiklander

Hi, Tomorrow, Tuesday, it's time for another OP-TEE contributors' monthly meeting. For time and connection details, see the calendar at https://www.trustedfirmware.org/meetings/ Regarding Kconfig support:https://github.com/OP-TEE/optee_os/pull/7714 It appears that the transition will take quite some time. We'll have a window when some variables have transitioned to be managed by Kconfig, but others remain managed by the makefiles. Do we care that variables passed on the command line may work differently, depending on whether they are managed by makefiles or Kconfig? Can something be done about it? Any other topics? Cheers, Jens

2 months, 2 weeks

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OP-TEE June 2026