CVE-2026-89488

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

CVE-2026-89488 openvswitch: Fix CT limit teardown use-after-free

In the Linux kernel, the following vulnerability has been resolved: openvswitch: Fix CT limit teardown use-after-free Packet processing uses CT limit state under RCU, while netns teardown frees that state under ovsmutex. The CT limit pointer was neither removed from readers nor protected by a gra...

EUVD-2026-76393

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89486

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix use-after-free of cmdrcvr in ipmidestroyuser Commit 9e91f8a6c868 "ipmi:msghandler: Remove srcu for the ipmiinterfaces list" dropped the synchronizercu between unlinking the command receivers from intf-cmdrcvrs and freei...

CVE-2026-89487 openvswitch: only skb_tx_error() a packet we are about to drop

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89486 ipmi: Fix use-after-free of cmd_rcvr in _ipmi_destroy_user()

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix use-after-free of cmdrcvr in ipmidestroyuser Commit 9e91f8a6c868 "ipmi:msghandler: Remove srcu for the ipmiinterfaces list" dropped the synchronizercu between unlinking the command receivers from intf-cmdrcvrs and freei...

CVE-2026-89487

CVE-2026-89487 affects the openvswitch subsystem in the Linux kernel. The bug resides in queue_userspace_packet(), whose error path calls skb_tx_error() on a packet that is still being forwarded through remaining flow actions. This call strips SKBFL_SHARED_FRAG from the live skb via skb_zcopy_cle...

EUVD-2026-76392

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix use-after-free of cmdrcvr in ipmidestroyuser Commit 9e91f8a6c868 "ipmi:msghandler: Remove srcu for the ipmiinterfaces list" dropped the synchronizercu between unlinking the command receivers from intf-cmdrcvrs and freei...

CVE-2026-89486

CVE-2026-89486 is a use-after-free vulnerability in the Linux kernel's IPMI subsystem , introduced by commit 9e91f8a6c868 which removed a synchronize_rcu() grace period before freeing command receiver (cmd_rcvr) objects in _ipmi_destroy_user(). Because the cmd_rcvrs list is still traversed under ...

CVE-2026-89487

In the Linux kernel, the following vulnerability has been resolved: openvswitch: only skbtxerror a packet we are about to drop queueuserspacepacket borrows the packet skb -- it only copies it into a private netlink message userskb and does not own it; on return doexecuteactions keeps forwarding i...

CVE-2026-89486 ipmi: Fix use-after-free of cmd_rcvr in _ipmi_destroy_user()

In the Linux kernel, the following vulnerability has been resolved: ipmi: Fix use-after-free of cmdrcvr in ipmidestroyuser Commit 9e91f8a6c868 "ipmi:msghandler: Remove srcu for the ipmiinterfaces list" dropped the synchronizercu between unlinking the command receivers from intf-cmdrcvrs and freei...

CVE-2026-89485

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89485

CVE-2026-89485 is a use-after-free vulnerability in the Linux kernel's lockd (NLM) subsystem. In nlm_traverse_files(), the current file is pinned across a mutex_unlock window, but the saved next pointer is not. A concurrent nlm_release_file() can free that next file, causing the iterator to deref...

CVE-2026-89485 lockd: pin next file across nlm_inspect_file lock-drop

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89485 lockd: pin next file across nlm_inspect_file lock-drop

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

EUVD-2026-76391

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89484 lockd: fix NULL dereference on lockowner allocation failure

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89483

CVE-2026-89483 is an information disclosure flaw in the Linux kernel NVMe subsystem . When nvme_setup_discard() falls back to the per-controller ctrl->discard_page (allocated via alloc_page(GFP_KERNEL) without zeroing) under memory pressure, up to 4080 bytes of uninitialized kernel memory (inc...

CVE-2026-89483

In the Linux kernel, the following vulnerability has been resolved: nvme: zero the discard fallback page nvmesetupdiscard always maps sizeofstruct nvmedsmrange NVMEDSMMAXRANGES = 4096 bytes as the DSM payload however many ranges the command declares, because some devices ignore the 'Number of...