CVE-2026-98990

In the Linux kernel, the following vulnerability has been resolved: namespace: check a submount for references right before unmounting it shrinksubmounts and markmountsforexpiry first collect all the mounts they are allowed to unmount and then unmount them. Whether a mount is busy is decided by...

CVE-2026-98992

In the Linux kernel, the following vulnerability has been resolved: namespace: don't copy an unmounted mount tree maycopytree accepts a mount whose root is an nsfs or pidfs file before it checks whether that mount is mounted. This exception exists for nsfs and pidfs mounts. They are part of no...

CVE-2026-99063

In the Linux kernel, the following vulnerability has been resolved: dm ioctl: don't let datastart run past the buffer struct dmioctl has seven bytes of trailing padding, so the smallest buffer userspace is allowed to ask for, offsetofstruct dmioctl, data, is seven bytes shorter than sizeofstruct...

UBUNTU-CVE-2026-99063

In the Linux kernel, the following vulnerability has been resolved: dm ioctl: don't let datastart run past the buffer struct dmioctl has seven bytes of trailing padding, so the smallest buffer userspace is allowed to ask for, offsetofstruct dmioctl, data, is seven bytes shorter than sizeofstruct...

UBUNTU-CVE-2026-99049

In the Linux kernel, the following vulnerability has been resolved: gpio: xilinx: fix runtime PM leak on request error path pmruntimegetsync leaves the usage counter incremented even when it fails, and xgpiorequest returns the error without dropping it. gpiolib does not call -free when -request...

CVE-2026-99067

In the Linux kernel, the following vulnerability has been resolved: btrfs: scrub: fix localroot reference leak in scrubprintwarninginode When pathsfrominode fails, scrubprintwarninginode jumps to err without dropping the reference taken by btrfsgetfsroot, leaking a reference to the root every tim...

CVE-2026-99074

In the Linux kernel, the following vulnerability has been resolved: ipv4: stop PMTU walk when nexthop group shrinks Commit 7d3f3b4367f3 "net: ipv4: Cache pmtu for all packet paths if multipath enabled" made iprtupdatepmtu update every path. For nexthop objects, fibinfonumpath and fibinfonhc...

CVE-2026-99070

In the Linux kernel, the following vulnerability has been resolved: ipv6: do not warn on route notification size race fib6infohwflagsset sizes the skb with rt6nlmsgsize and later fills it with rt6fillnode. With nexthop compatibility mode enabled, a concurrent replacement can grow the group betwee...

CVE-2026-99045

In the Linux kernel, the following vulnerability has been resolved: ibmveth: hfree logical LAN on open-fail after register ibmvethopen registers the logical LAN, then allocates the RX buffer pools. A pool failure jumps to outfreebufferpools without hfreelogicallan, so PHYP still owns the...

UBUNTU-CVE-2026-99070

In the Linux kernel, the following vulnerability has been resolved: ipv6: do not warn on route notification size race fib6infohwflagsset sizes the skb with rt6nlmsgsize and later fills it with rt6fillnode. With nexthop compatibility mode enabled, a concurrent replacement can grow the group betwee...

UBUNTU-CVE-2026-99043

In the Linux kernel, the following vulnerability has been resolved: ice: fix metadatadst refcount handling on representor teardown iceeswitchreleaserepr uses metadatadstfree to release the representor's metadatadst. metadatadstfree directly frees the underlying memory without checking the dstentr...

CVE-2026-99080

In the Linux kernel, the following vulnerability has been resolved: fs: Free any excess xarray nodes in clearinode For many years we've had a hard to hit leak of xarray nodes. Hugh documented it well in commit 786b31121a2c. Recently people and syzbot have found ways to force it to happen with...

UBUNTU-CVE-2026-99059

In the Linux kernel, the following vulnerability has been resolved: wireguard: noise: reject response consumption after intermediate initiation Two threads begin processing the identical response message, received twice. The first thread, A, runs. While it's running, the second one, B, gets partw...

CVE-2026-99056

In the Linux kernel, the following vulnerability has been resolved: strparser: make sure strprecv isn't running before tearing down the parser The comment above strpdone claims that if strp is stopped, strprecv will no longer be called. That's only true if the caller has a mechanism eg locking to...

CVE-2026-99057

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: don't leak the skb when xennetfillfrags fails When a response chain has more slots than fit in the skb's frags, xennetfillfrags returns an error and xennetpoll jumps to its error path. That path moves what's left on...

UBUNTU-CVE-2026-99057

In the Linux kernel, the following vulnerability has been resolved: xen/netfront: don't leak the skb when xennetfillfrags fails When a response chain has more slots than fit in the skb's frags, xennetfillfrags returns an error and xennetpoll jumps to its error path. That path moves what's left on...

CVE-2026-99049

In the Linux kernel, the following vulnerability has been resolved: gpio: xilinx: fix runtime PM leak on request error path pmruntimegetsync leaves the usage counter incremented even when it fails, and xgpiorequest returns the error without dropping it. gpiolib does not call -free when -request...

CVE-2026-99053

In the Linux kernel, the following vulnerability has been resolved: tipc: hold a reference to nodes found by link name tipcnodefindbyname returns a node after dropping its RCU read lock without taking a reference. The LINKSET, LINKGET and LINKRESETSTATS handlers then lock and access the node,...

CVE-2026-99058

In the Linux kernel, the following vulnerability has been resolved: workqueue: Fix NULL currentpwq deref in chained work check currentwqworker only tells us that %current is a kworker. It does not guarantee that the worker is currently executing a work item, as worker-currentpwq is populated only...

UBUNTU-CVE-2026-99072

In the Linux kernel, the following vulnerability has been resolved: ipv4: stop route notification sizing when nexthop group shrinks Commit 680aea08e78c "net: ipv4: Emit notification when fib hardware flags are changed" added an RCU-only fibnlmsgsize call for asynchronous hardware flag...