CVE-2026-89507

A flaw was found in the Linux kernel's RDMA/ucma component. A race condition exists in the ucmawritecmevent function where it re-reads a critical file pointer multiple times without proper locking. This allows another function, ucmamigrateid, to change the file pointer mid-operation. An...

CVE-2026-89508

A flaw was found in the Linux kernel's RDMA/ucma component. A race condition exists in the ucmasetibpath function when handling events concurrently with ucmamigrateid. This can allow a local attacker with access to an RDMA device to trigger a use-after-free vulnerability, potentially leading to...

CVE-2026-89508

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmasetibpath ucmasetibpath calls ucmaeventhandler straight from the write path, without the handler lock that keeps ctx-file stable while a uevent is queued. The handler re-reads ctx-file for every...

CVE-2026-89507

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmawritecmevent ctx-file may only be changed under the handler lock and the xalock, which is what stops uevents being queued for a ctx while ucmamigrateid moves it to another file. The CM core take...

CVE-2026-89507

CVE-2026-89507 is a race condition in the Linux kernel's RDMA/ucma subsystem, specifically in ucma_write_cm_event(). The function re-reads ctx->file for each of its four dereferences, and ucma_migrate_id() can swap that pointer mid-sequence while the writer sleeps inside mutex_lock(). This cau...

CVE-2026-89508

The Linux kernel RDMA/ucma subsystem contains a race condition in ucma_set_ib_path(), which calls ucma_event_handler() from the write path without acquiring the handler lock. A concurrent ucma_migrate_id() can reassign ctx->file between mutex operations, causing list_add_tail() to target a dif...

EUVD-2026-76414

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmasetibpath ucmasetibpath calls ucmaeventhandler straight from the write path, without the handler lock that keeps ctx-file stable while a uevent is queued. The handler re-reads ctx-file for every...

CVE-2026-89507 RDMA/ucma: Lock the handler in ucma_write_cm_event()

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmawritecmevent ctx-file may only be changed under the handler lock and the xalock, which is what stops uevents being queued for a ctx while ucmamigrateid moves it to another file. The CM core take...

EUVD-2026-76413

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmawritecmevent ctx-file may only be changed under the handler lock and the xalock, which is what stops uevents being queued for a ctx while ucmamigrateid moves it to another file. The CM core take...

CVE-2026-89508 RDMA/ucma: Lock the handler in ucma_set_ib_path()

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucmasetibpath ucmasetibpath calls ucmaeventhandler straight from the write path, without the handler lock that keeps ctx-file stable while a uevent is queued. The handler re-reads ctx-file for every...

PT-2026-90224

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucma set ib path ucma set ib path calls ucma event handler straight from the write path, without the handler lock that keeps ctx-file stable while a uevent is queued. The handler re-reads ctx-file f...

PT-2026-90223

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Lock the handler in ucma write cm event ctx-file may only be changed under the handler lock and the xa lock, which is what stops uevents being queued for a ctx while ucma migrate id moves it to another file. The CM cor...

SUSE CVE-2022-48726

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in...

CVE-2022-48726

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in...

CVE-2022-48726 RDMA/ucma: Protect mc during concurrent multicast leaves

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in...

CVE-2022-48726

CVE-2022-48726 affects the Linux kernel’s RDMA/ucma code path, specifically a use-after-free in ucma_cleanup_multicast and related flows (ucma_destroy_private_ctx, ucma_write) caused by touching a concurrently freed multicast structure during a multicast leaves operation. The description notes th...

CVE-2022-48726 RDMA/ucma: Protect mc during concurrent multicast leaves

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in...

CVE-2022-48726

In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in...

Unbreakable Enterprise kernel security update

4.14.35-2047.522.3 - ALSA: pcm: oss: Fix race at SNDCTLDSPSYNC Sasha Levin Orabug: 34653896 CVE-2022-3303 - net/rds: Fill in rdsexthdrsize gaps Gerd Rausch Orabug: 34979172 - net/rds: Trigger rdssendhsping more than once Gerd Rausch Orabug: 34607787 - Revert 'RDS: TCP: Track peer's connection...

kernel security update

2.6.32-754.35.1.0.7.OL6 - bluetooth: eliminate the potential race condition when removing the HCI controller Lin Ma CVE-2021-32399 Orabug: 33763116 - RDMA/ucma: Put a lock around every call to the rdmacm layer Jason Gunthorpe Orabug: 33763116 - RDMA/cma: Add missing locking to rdmaaccept Leon...