UBUNTU-CVE-2026-99159

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix the sub-buffer array base in rbmetasubbufidx On a persistent ring buffer, rbmetasubbufidx can return an index one sub-buffer too high. rbsetupidsmetapage then fills subbufids shifted by one and leaves subbufids0...

UBUNTU-CVE-2026-99201

In the Linux kernel, the following vulnerability has been resolved: netlink: avoid hashing the network namespace pointer The netlink rhashtable key includes a raw struct net pointer and a user-controlled port ID. Both /proc/net/netlink and socket diagnostics expose the table's bucket order. By...

UBUNTU-CVE-2026-99203

In the Linux kernel, the following vulnerability has been resolved: pipe: preserve existing fasync readers on writer setup failure FSETFL and FIOASYNC decide whether to invoke -fasync before pipefasync takes pipe-mutex. Two enables of one ORDWR FIFO can therefore both enter the callback...

UBUNTU-CVE-2026-99187

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfpmumigratecontext leaving events behind perfpmuremove walks the group leaders of a CPU and PMU with perfeventgroupsforcpupmu, removing each one as it goes. perfremovefromcontext takes the leader out of the groups...

UBUNTU-CVE-2026-99163

In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Reject non-stacktrace fields for synthetic stacktrace fields In checksynthfield, when a synthetic event field is a stacktrace field-isstack and the histogram field is not a "long" stacktrace array, validation...

UBUNTU-CVE-2026-99178

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Don't consume async PF flags on a kernel PF in NMI context An async PF "page not present" event arrives through the PF vector, and its reason sits in the per-CPU apfreason.flags until kvmhandleasyncpf reads and clears it...

UBUNTU-CVE-2026-99191

In the Linux kernel, the following vulnerability has been resolved: calipso: keep BIG TCP payloadlen in calipsoskbuffsetattr calipsoskbuffsetattr adjusts payloadlen by the length of the option it inserts or resizes: payload = ntohsip6hdr-payloadlen; ip6hdr-payloadlen = htonspayload + lendelta; GR...

UBUNTU-CVE-2026-99206

In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix race in discovery auth updates Separate configfs opens can concurrently update the discovery AuthMethod parameter. Both callers may free the same value in iscsiupdateparamvalue, causing a double-free...

UBUNTU-CVE-2026-99136

In the Linux kernel, the following vulnerability has been resolved: dm-crypt: fix a tiny race condition in cryptdecpending cryptdecpending reads io-error before calling atomicdecandtest. Another context, for example cryptendio called from an interrupt, may set io-error and drop its reference...

UBUNTU-CVE-2026-99210

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: clear rdev on device init failure rocketprobe stores the return value from rocketdeviceinit in the file-scoped rdev pointer before checking whether it is an error pointer. If rocketdeviceinit fails, rdev is left as ...

UBUNTU-CVE-2026-99179

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix note pool publication race in watchqueuesetsize There is a race between watchqueuesetsize and postonenotification. watchqueuesetsize publishes wqueue-notes, notesbitmap, nrpages and nrnotes with plain stores, and...

UBUNTU-CVE-2026-99175

In the Linux kernel, the following vulnerability has been resolved: fsnotify: prevent mark additions during connector teardown fsnotifydestroymarks keeps a reference to its current mark while it drops conn-lock to destroy the mark. This stabilizes the forward-walk cursor, but does not prevent a n...

UBUNTU-CVE-2026-99211

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

UBUNTU-CVE-2026-99212

In the Linux kernel, the following vulnerability has been resolved: net/rds: don't let the rdmacm destroy an id RDS still owns on route failure rdsrdmacmeventhandlercmn hands the return value of rdmaresolveroute straight back to the rdmacm on RDMACMEVENTADDRRESOLVED. A synchronous failure there -...

UBUNTU-CVE-2026-99150

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: don't drop the runtime PM reference twice in amdgpugpr amdgpudebugfsgprread drops its runtime PM reference right after reading the wave registers. When copying them to userspace fails, it jumps to the err label, which...

UBUNTU-CVE-2026-99169

In the Linux kernel, the following vulnerability has been resolved: futex: Fix mm reuse handling for FUTOFFMMSHARED A FUTOFFMMSHARED futex is a shared futex that refers to an MM. It is possible for a process to wait on a shared futex with a different MM because a FUTOFFINODE waiter can be requeue...

UBUNTU-CVE-2026-99185

In the Linux kernel, the following vulnerability has been resolved: firewire: core: fix race condition in split transaction handling For a split transaction, either fwcorehandleresponse or splittransactiontimeoutcallback may manipulate the same transaction entry in the pending transaction list. T...

UBUNTU-CVE-2026-99172

In the Linux kernel, the following vulnerability has been resolved: ipc: drop the mqueue mount with kernunmount on setup failure mqinitns creates the mqueue mount with fcmountlongterm, so its -mntns is MNTNSINTERNAL. When setting up the mqueue or ipc sysctls or msginitns fails afterwards,...

UBUNTU-CVE-2026-99208

In the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Zero OA buffer at allocation ttmbotypekernel BOs are not guaranteed to be zeroed on allocation and may contain data from previously freed pages. Since the OA buffer is mmap'able by userspace, this can expose stale kern...

UBUNTU-CVE-2026-99110

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in cifsdosetacl cifssetacl validates ACL size using posixaclxattrsize: 4 + count 8 // 4-byte header + 8 bytes per ACE cifsdosetacl then calls posixacltocifs to write the CIFS wire format into the sa...