CVE-2026-53188

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CVE-2026-53187

The CVE-2026-53187 entry describes a Linux kernel vulnerability in RDMA/core where UVERBS_ATTR_ALLOC_DMAH_CPU_ID from user space is passed to cpumask_test_cpu() without validating against nr_cpu_ids. This can cause an out-of-bounds read of the cpumask bitmap (indexed by cpu_id / BITS_PER_LONG) an...

EUVD-2026-39279

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate the passed in fops for ibgetucaps Sashiko pointed out it is not safe to rely only on the devt because char/block alias so if the user finds a block device with the same devt it can masquerade as a ucap cdev fd...

EUVD-2026-39278

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fixed a reference leak in the GID entry when the createah operation fails. If the AH create request fails, the sgidattr should be released to avoid a reference leak during the release of the GID table...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/qedr: Fixed the qedrcreateuserqp error flow. Avoid the following warning by ensuring that allocated resources are freed in case qedrinituserqueue fails. ----------- Cut here --- WARNING: CPU: 0 PID: 143192 at...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fixed the null-ptr-deref issue in ibcorecleanup. KASAN reported a null-ptr-deref error: KASAN: Null pointer dereferencing in the range 0x0000000000000118–0x000000000000011f. CPU: 1; PID: 379. Hardware name: QEMU Standa...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: The reference count of the device should always be dropped in ibdelsubdeviceandput. Since nldevdeldev introduced in commit 060c642b2ab8 “RDMA/nldev: Add support for adding/deleting a sub IB device through netlink” grab...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/core: Ensure that “ibport” is valid when accessing the sysfs node. The “ibport” structure must be set before adding the sysfs kobject, and reset after removing it. Otherwise, the system may crash when accessing the sysfs...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/cma: Fixed a kmemleak in rdmacore that was observed during the blktests nvme/rdma tests with siw. When running the blktests nvme/rdma tests, the following kmemleak issue will appear: - kmemleak: The kernel memory leak...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: RDMA/core: Set the send and receive CQ pointers before forwarding them to the driver. Preset both receive and send CQ pointers prior to calling the drivers, and overwrite them again until the mlx4 is changed. Do not overwrite...

RHEL 8 : kernel (RHSA-2026:3268)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:3268 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: RDMA/core: Fix KASAN:...

Moderate: Red Hat Security Advisory: kernel-rt security update

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Important: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerabilit...

kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem Call Trace: dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 inline...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem Call Trace: dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 inline...

kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem Call Trace: dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 inline...

kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem Call Trace: dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 inline...

kernel: RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix "KASAN: slab-use-after-free Read in ibregisterdevice" problem Call Trace: dumpstack lib/dumpstack.c:94 inline dumpstacklvl+0x116/0x1f0 lib/dumpstack.c:120 printaddressdescription mm/kasan/report.c:408 inline...