CVE-2026-42546

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.3.0 and prior to version 4.11.0, a resource leak exists in OP-TEE’s shared memory cleanup logic because the functio...

CVE-2026-42546 OP-TEE has missing OPTEE_MSG_ATTR_TYPE_MASK in cleanup_shm_refs() leaks mobj references

OP-TEE is a Trusted Execution Environment TEE designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.3.0 and prior to version 4.11.0, a resource leak exists in OP-TEE’s shared memory cleanup logic because the functio...

CVE-2026-42546

OP-TEE (Trusted Execution Environment for Arm TrustZone) prior to version 4.11.0 contains a resource leak in the shared memory cleanup path. Specifically, cleanup_shm_refs() in core/tee/entry_std.c fails to apply the OPTEE_MSG_ATTR_TYPE_MASK to parameter attributes when processing non-contiguous ...

PT-2026-55975

Name of the Vulnerable Software and Affected Versions OP-TEE versions 3.3.0 through 4.10.x Description A resource leak exists in the shared memory cleanup logic of OP-TEE, a Trusted Execution Environment designed for Arm Cortex-A cores using TrustZone technology. The function cleanup shm refs in...

PT-2026-71930

Name of the Vulnerable Software and Affected Versions FreeBSD affected versions not specified Description An issue exists in the implementation of largepage shared memory objects where pages were not explicitly wired. When the sendfile2 function transmits such an object using the SF NOCACHE flag,...

FreeBSD-SA-26:44.posixshm

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:44.posixshm Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities in POSIX largepage objects Category: core Module: posixshm Announced:...

FreeBSD Security Advisory - FreeBSD-SA-26:44.posixshm

FreeBSD Security Advisory - Pages belonging to largepage shared memory objects were not explicitly wired. When sendfile2 transmitted such an object with the SFNOCACHE flag, it freed the underlying pages after transmission even though existing mappings still referred to them. Separately, certain...

Linux Distros Unpatched Vulnerability : CVE-2026-53210

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to...

ipc/shm: serialize orphan cleanup with shm_nattch updates

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CVE-2026-53210

A flaw was found in the Linux kernel's Trusted Execution Environment TEE subsystem. A shared memory shm leak occurs in the registershmhelper function when TEEIOCSHMREGISTER is called with a zero-length shared memory registration. This can be triggered by a local attacker, potentially leading to a...

SUSE CVE-2026-53210

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

CVE-2026-53210

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

UBUNTU-CVE-2026-53210

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

CVE-2026-53210

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

CVE-2026-53250 xsk: cache csum_start/csum_offset to fix TOCTOU in xsk_skb_metadata()

In the Linux kernel, the following vulnerability has been resolved: xsk: cache csumstart/csumoffset to fix TOCTOU in xskskbmetadata The TX metadata area resides in the UMEM buffer which is memory-mapped and concurrently writable by userspace. In xskskbmetadata, csumstart and csumoffset are read...

CVE-2026-53250

CVE-2026-53250 : In the Linux kernel, the xsk_skb_metadata() path is vulnerable to a TOCTOU race in which csum_start and csum_offset are read from shared UMEM and then read again for skb assignment. A malicious userspace process can overwrite values between reads, bypassing bounds checks and caus...

EUVD-2026-39301

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

CVE-2026-53210

The CVE-2026-53210 issue is in the Linux kernel’s Trusted Execution Environment (TEE) subsystem. A shm leak occurs in register_shm_helper() when TEE_IOC_SHM_REGISTER registers a zero-length shared memory, because shm is allocated before iov_iter_npages() and not freed if it returns 0; the code pa...

CVE-2026-53210

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...

CVE-2026-53210 tee: shm: fix shm leak in register_shm_helper()

In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in registershmhelper registershmhelper allocates shm before calling ioviternpages. If ioviternpages returns 0, the function jumps to errctxput and leaks shm. This can be triggered by TEEIOCSHMREGISTER with...