UBUNTU-CVE-2026-98364

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold netdevice reference under RCU in bundle creation xfrmbundlecreate and xfrmcreatedummybundle read dst-dev into a local pointer without taking a device reference, then pass it to xfrmfilldst. A concurrent RTMDELLINK...

UBUNTU-CVE-2026-98186

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: bound the pairwise-cipher OUI walk to the IE length mwifiexsearchouiinie reads a pairwise-cipher PTK count from a beacon/probe-response RSN or WPA information element and then walks that many 4-byte OUIs, comparing...

UBUNTU-CVE-2026-98289

In the Linux kernel, the following vulnerability has been resolved: afunix: Unify sccindex when finalising SCC in unixwalkscc. Commit bfdb01283ee8 "afunix: Assign a unique index to SCC." changed Tarjan's algorithm to update lowlink with lowlink, which is called lowpoint unixvertex.sccindex...

UBUNTU-CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

UBUNTU-CVE-2026-98251

In the Linux kernel, the following vulnerability has been resolved: openvswitch: avoid reallocating confirmed conntrack labels ovsctgetconnlabels adds the labels extension when a conntrack entry does not have one. Confirmed conntracks can be read locklessly, so adding an extension may reallocate...

UBUNTU-CVE-2026-98366

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: validate access flags before swapping the MR's PD rxereregusermr reassigns mr-ibmr.pd first and only then validates the IBMRREREGACCESS argument: if flags & IBMRREREGPD rxeputoldpd; rxegetpd; mr-ibmr.pd = ibpd; if flags...

UBUNTU-CVE-2026-98281

In the Linux kernel, the following vulnerability has been resolved: futex: Also allocate private hash on vfork As Jann demonstrated, it is entirely feasible to access the mm through vfork. Therefore we need to allocate a private hash on vfork as well as any other CLONEVM user. Specifically, it mu...

UBUNTU-CVE-2026-98215

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

UBUNTU-CVE-2026-98350

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: cyw: pass PMKID to firmware if present Zero out authstatus on initialization. Otherwise, garbage will leak from the stack to the firmware when ssid is less than 32 bytes and/or when params-pmkid is set. Then, pass...

UBUNTU-CVE-2026-98316

In the Linux kernel, the following vulnerability has been resolved: ALSA: bcd2000: Fix race between rawmidi and disconnect Although we tried to fix the potential UAF issues at USB disconnect on bcd2000 driver, there is still an overlooked case -- namely, when a rawmidi trigger callback has been...

UBUNTU-CVE-2026-98361

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Restore HMMPFNWRITE check in ODP write paths Commit 0b261d7c1cd3 "RDMA/rxe: Break endless pagefault loop for RO pages" dropped the access permission test from rxecheckpagefault and left only HMMPFNVALID. A page faulted ...

UBUNTU-CVE-2026-98187

In the Linux kernel, the following vulnerability has been resolved: wifi: p54: require a full expif record in PDRINTERFACELIST The PDRINTERFACELIST loop only checks that the record start is within the entry before reading an entire struct expif from it. A truncated trailing record makes the...

UBUNTU-CVE-2026-98224

In the Linux kernel, the following vulnerability has been resolved: mm/vma: correctly unaccount on mmapprepare failure mmapsetup accounts memory for relevant mappings via: securityvmenoughmemorymm - vmenoughmemory - vmacctmemory If mmapsetup fails, this indicates that this accounting did not take...

UBUNTU-CVE-2026-98218

In the Linux kernel, the following vulnerability has been resolved: i2c: atr: fix dangling adapter pointer on add failure i2catraddadapter stores atr-adapterchanid before i2caddadapter so that the I2C bus notifier can match child clients during registration. On failure the channel is freed but th...

UBUNTU-CVE-2026-98280

In the Linux kernel, the following vulnerability has been resolved: drm/xe/i2c: Disable IRQ on unbind Currently, struct xei2c is freed before SGUnit IRQ is disabled in unbind path, leaving a potential UAF in case I2C IRQ is hit during this small window. Explicitly disable I2C IRQ in xei2cremove a...

UBUNTU-CVE-2026-98265

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Clamp implicit feedback packet count to URB capacity dataepsetparams allocates each data URB for exactly u-packets isochronous frames, so urb-isoframedesc has u-packets slots and ctx-packets is the driver's only...

UBUNTU-CVE-2026-98319

In the Linux kernel, the following vulnerability has been resolved: drm: Fix drmpendingvblankevent leak in error path for outfenceptr When an outfenceptr is provided but DRMMODEPAGEFLIPEVENT is not set, a drmpendingvblankevent will be allocated. If later, there is an allocation failure or another...

UBUNTU-CVE-2026-98300

In the Linux kernel, the following vulnerability has been resolved: tcp: Don't call skbcloneandcharger for closed listener in tcpv6dorcv. tcpv6dorcv no longer calls skbcloneandcharger for TCPLISTEN since commit 073d89808c06 "net: fix data-races around sk-skforwardalloc". However, there is still a...

UBUNTU-CVE-2026-98367

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Clear association under lock if siwqpmodify fails in siwaccept We need to clear cep before release statelock as siwqpllpclose and siwqpmodify-siwqpllpclose did. Otherwise if siwqpmodify fails in siwaccept, the QP's...

UBUNTU-CVE-2026-98299

In the Linux kernel, the following vulnerability has been resolved: tcp: do not let tcprmem be set below 4096 We can hit a division by zero crash in tcprcvbufgrow and tcprcvspaceadjust: divide error: 0000 1 PREEMPT SMP RIP: 0010:tcprcvbufgrow+0x187/0x450 net/ipv4/tcpinput.c:939 ... grow =...