kernel security, bug fix, and enhancement update

4.18.0-553.155.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

CVE-2026-72117

A flaw was found in the Linux kernel's CAN Controller Area Network Broadcast Manager BCM module. A data race condition exists in the bcmrxhandler function where the rxstamp and rxifindex values are written without proper locking. This can lead to a "torn store" of the 64-bit rxstamp on 32-bit...

Linux Distros Unpatched Vulnerability : CVE-2026-72120

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - can: bcm: add missing rcu list annotations and operations sashiko-bot remarked the missing use of listaddrcu in bcmrx|txsetup to have a proper initialized bcmop...

CVE-2026-72123

A use-after-free flaw was found in the Linux kernel's CAN BCM Broadcast Manager subsystem. During RX operation teardown, a concurrent receive handler can race and re-arm the throttle timer after the operation has been scheduled for deallocation. When the deallocation completes, the timer is still...

CVE-2026-72122

A flaw was found in the CAN BCM Controller Area Network Broadcast Manager module of the Linux kernel. A race condition exists where a socket intended for a specific CAN interface can silently be reconfigured to receive messages from any interface. This occurs due to inconsistent reads of socket...

CVE-2026-72121

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcom bcm driver. A race condition exists when the driver attempts to update filter and timer values simultaneously with ongoing receive operations. This can lead to the transmission of stale CAN reply frames with an incorrect...

CVE-2026-72120

A flaw was found in the Linux kernel's can: bcm module. Missing Read-Copy-Update RCU list annotations and operations can lead to improperly initialized or removed bcmop structures. This improper handling may cause system instability or a denial of service when these structures are accessed...

CVE-2026-72119

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. This vulnerability arises from a race condition where CAN frame data and timer updates can be observed in a partially updated or unvalidated state due to insufficient locking. Additionally, a missing...

CVE-2026-72118

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A data race condition, occurring when multiple central processing units CPUs simultaneously process CAN frames, can lead to incorrect statistics being reported. This could result in a bogus or negativ...

CVE-2026-72115

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. A race condition can occur when an ANYDEV receive operation, which listens on all interfaces, has an active timeout or throttle timer and receives matching frames from multiple network interfaces...

CVE-2026-72114

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcom bcm driver. This vulnerability arises from insufficient validation of frame lengths when processing Remote Transmission Request RTR replies. An attacker could exploit this by sending a specially crafted RTR reply, which m...

CVE-2026-72113

A flaw was found in the Linux kernel's Controller Area Network CAN Broadcast Manager BCM module. This vulnerability arises from a missing device reference count during the removal of CAN filters. If a network device is unregistered concurrently while the BCM module attempts to remove a filter, th...

kernel: can:bcm: arbitrary kernel code execution leading to escalate privileges

A flaw was found in the Linux kernel in net/can/bcm.c in can: bcm, where an unprivileged local user can exploit this vulnerability to execute arbitrary code within the kernel, which leads to a local privilege escalation LPE. This allows the attacker to gain root privileges and take full control o...

ALSA-2026:55764 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: mm/slub: avoid accessing metadata when pointer is invalid in objecterr CVE-2025-39902 kernel: drm/amdkfd: Fix out-of-bounds write in kfdeventpageset CVE-2026-43206 kernel: crypto: ccp -...

CVE-2026-72120

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu list annotations and operations sashiko-bot remarked the missing use of listaddrcu in bcmrx|txsetup to have a proper initialized bcmop structure when bcmprocshow traverses the bcmop's under rcureadlock. ...

CVE-2026-72116

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix stale rx/tx ops after device removal RX: an RXSETUP update! for an existing op skipped canrxregister unconditionally, even when a concurrent NETDEVUNREGISTER had already torn down its registration op-rxregdev == NUL...

CVE-2026-72121

In the Linux kernel, the following vulnerability has been resolved: can: bcm: add locking when updating filter and timer values KCSAN detected a simultaneous access to timer values that can be overwritten in bcmrxsetup when updating timer and filter content while bcmrxhandler, bcmrxtimeouthandler...

CVE-2026-72117

In the Linux kernel, the following vulnerability has been resolved: can: bcm: fix data race on rxstamp/rxifindex in bcmrxhandler For an rx op subscribed on all interfaces ifindex == 0, the same op is registered once in the shared per-netns wildcard filter list, so bcmrxhandler can run concurrentl...

CVE-2026-72115

In the Linux kernel, the following vulnerability has been resolved: can: bcm: track a single source interface for ANYDEV timeout/throttle ops An ANYDEV rx op ifindex == 0 with an active RX timeout and/or throttle timer has no defined semantics when matching frames arrive from several interfaces:...

CVE-2026-72114

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcmrxsetup for RTR replies bcmtxsetup validates cf-len against the CAN/CAN FD DLC limits before installing frames for TXSETUP, but bcmrxsetup never did the same for the RTR-reply frame configure...