UBUNTU-CVE-2026-98208

In the Linux kernel, the following vulnerability has been resolved: mmc: sdiouart: fix xmitfifo leak when the port table is full sdiouartaddport allocates the transmit fifo before claiming a slot in sdiouarttable. When all UARTNR slots are taken, it returns -EBUSY with the fifo still allocated, b...

UBUNTU-CVE-2026-98331

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: unlist vifs when their netdev is unregistered mac80211 only removes vifs from the local-interfaces list when an interface is removed via ieee80211ifremove, before it unregisters the netdev. However, it's possible...

UBUNTU-CVE-2026-98256

In the Linux kernel, the following vulnerability has been resolved: signal: Prevent exec race Hyunwoo debugged the following KASAN UAF splat: BUG: KASAN: slab-use-after-free in sendsignallocked+0xb27/0xba0 Write of size 8 at addr ffff888007ed80c8 by task poc/79 ... Call Trace:...

UBUNTU-CVE-2026-98204

In the Linux kernel, the following vulnerability has been resolved: Input: rmismbus - fix out-of-bounds read in rmismbwriteblock When chunking writes into SMBus blocks in rmismbwriteblock, the loop calculates blocklen using the original total length len instead of the remaining length curlen. If...

UBUNTU-CVE-2026-98239

In the Linux kernel, the following vulnerability has been resolved: net: lan743x: fix RX checksum use-after-free lan743xrxprocessbuffer adds each non-first receive buffer to the head skb's fraglist. On the last descriptor, lan743xrxtrimskb linearizes the head and frees the fragment skb metadata...

CVE-2026-98275

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Ack RX overrun interrupt correctly The RX overrun interrupt is reported in interrupt status register 4, but gmacirq acknowledges it using the RX descriptor error bit from status register 0. For GMAC0 this...

UBUNTU-CVE-2026-98220

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix NULL sched deref in kfunc sub-sched error paths When the root scheduler has sub-scheds attached, the COMPAT kfunc wrappers scxbpfselectcpuand and scxbpfdsqinsertvtime refuse the call and report to @p's scheduler:...

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-2026-98232

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Validate MODE SENSE lengths in scsicdlenable scsicdlenable uses length fields returned by MODE SENSE to locate the ATA feature mode page in a 64-byte stack buffer. A target can report a total length shorter than its...

UBUNTU-CVE-2026-98188

In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate curve data length in the calibration curve converters p54convertrev0 and p54convertrev1 read calibration curve data from the device-supplied EEPROM entry using channel and points-per-channel counts taken...

CVE-2026-98306

In the Linux kernel, the following vulnerability has been resolved: seg6: set IPSKBL3SLAVE from IP6SKBL3SLAVE on IPIP decapsulation When an SRv6 packet arrives on an interface enslaved to a VRF, vrfip6rcv sets IP6SKBL3SLAVE in IP6CB, but decapandvalidate has never set IPSKBL3SLAVE in IPCB. The bi...

UBUNTU-CVE-2026-98198

In the Linux kernel, the following vulnerability has been resolved: hwmon: pwm-fan Stop RPM timer before freeing tach data sampletimer rearms the RPM timer and accesses the devm-managed ctx-tachs and ctx-pulsesperrevolution arrays. The cleanup action which stops the timer is registered before tho...

UBUNTU-CVE-2026-98203

In the Linux kernel, the following vulnerability has been resolved: Input: socbuttonarray - check btnsdesc-package.count Check that btnsdesc-package.count is not 0 before accessing btnsdesc-package.elements0...

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-2026-98258

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: Prevent freeing a timer which is queued on the expiry list Kijo analyzed another race in the POSIX CPU timer code: Commit bf635681c906 converted cputimer::firing from a tristate value to a boolean. This lost the...

UBUNTU-CVE-2026-98261

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix server use-after-free in cifschanskipordisable When a secondary channel is no longer supported by the server, cifschanskipordisable drops the channel reference with cifsputtcpsession and then continues to use the server...

UBUNTU-CVE-2026-98229

In the Linux kernel, the following vulnerability has been resolved: xfrm: save input state data before secpath resets xfrminput stores the current xfrmstate in the skb secpath while it continues receive-side processing. Some input paths can reset that secpath before xfrminput has finished...

UBUNTU-CVE-2026-98180

In the Linux kernel, the following vulnerability has been resolved: drm/msm: RCU-free the scheduler-containing ring and VM objects Both struct msmringbuffer and struct msmgemvm embed a struct drmgpuscheduler. msmringbufferdestroy and the VM free callback msmgemvmfree call drmschedfini on the...

UBUNTU-CVE-2026-98283

In the Linux kernel, the following vulnerability has been resolved: KVM: PPC: Book3S HV: fix use-after-free in kvmhvemulatetlbiealllpid kvmhvemulatetlbiealllpid iterates the nested-guest IDR and drops mmulock before calling kvmhvemulatetlbielpid, but does not hold a reference on the kvmnestedgues...

UBUNTU-CVE-2026-98293

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix parent socket leak in isoconnready isogetsock returns the parent socket with a reference held, which is dropped by sockput once the child socket has been set up. The error path taken when isosockalloc fails on...