UBUNTU-CVE-2026-64368

In the Linux kernel, the following vulnerability has been resolved: mm/slab: do not limit zeroing to origsize when only red zoning is enabled When init zeroing on allocation is requested, for kmalloc we generally have to zero the full object size even if a smaller size is requested, in order to...

UBUNTU-CVE-2026-64529

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - remove unused character device and IOCTLs The QAT driver exposes a character device qatadfctl with IOCTLs for device configuration, start, stop, status query and enumeration. These IOCTLs are not part of any public...

UBUNTU-CVE-2026-64492

In the Linux kernel, the following vulnerability has been resolved: iio: temperature: tmp006: use devmiiotriggerregister tmp006probe allocates the DRDY trigger with devmiiotriggeralloc but registers it with plain iiotriggerregister. The driver has no .remove callback, so on module unload the...

UBUNTU-CVE-2026-64372

In the Linux kernel, the following vulnerability has been resolved: cpufreq: pcc: fix use-after-free and double free in OSC evaluation pcccpufreqdoosc calls acpievaluateobject twice for the two-phase OSC negotiation. Between the two calls it freed output.pointer but left output.length unchanged...

UBUNTU-CVE-2026-64485

In the Linux kernel, the following vulnerability has been resolved: ALSA: compress: Fix task creation error unwind sndcomprtasknew allocates the driver task before validating the returned DMA buffers and reserving file descriptors. When either of those later steps fails, the core frees its task...

UBUNTU-CVE-2026-64326

In the Linux kernel, the following vulnerability has been resolved: block: skip syncblockdev on surprise removal in bdevmarkdead bdevmarkdead's @surprise == true means the device is already gone. The filesystem callback fsbdevmarkdead honours this and skips syncfilesystem, but the bare block devi...

UBUNTU-CVE-2026-64311

In the Linux kernel, the following vulnerability has been resolved: crypto: loongson - Remove broken and unused loongson-rng The loongson-rng rngalg has several vulnerabilities, including not providing forward security, and a use-after-free bug due to the use of waitforcompletioninterruptible...

UBUNTU-CVE-2026-64431

In the Linux kernel, the following vulnerability has been resolved: ntfs: avoid calling postwritemstfixup for invalid indexblock ntfsicxibsyncwrite calls postwritemstfixup when ntfsibwrite returns an error, intending to restore the buffer after a failed write. However, ntfsibwrite returns an erro...

UBUNTU-CVE-2026-64290

In the Linux kernel, the following vulnerability has been resolved: iommufd: Break the loop on failure in iommufdfaultfopsread On a copytouser failure inside the inner listforeachentry, only the inner loop breaks; the outer while re-fetches the just-restored fault group and retries the failing...

UBUNTU-CVE-2026-64508

In the Linux kernel, the following vulnerability has been resolved: bpf: Support for hardening against JIT spraying The BPF JIT allocator packs many small programs into larger executable allocations and reuses space within those allocations as programs are loaded and freed. When fresh code is...

UBUNTU-CVE-2026-64323

In the Linux kernel, the following vulnerability has been resolved: udf: validate VAT header length against the VAT inode size udfloadvat takes the virtual partition's start offset straight from the on-disk VAT 2.0 header without checking it against the VAT inode size:...

UBUNTU-CVE-2026-64278

In the Linux kernel, the following vulnerability has been resolved: i2c: imx-lpi2c: mark I2C adapter when hardware is powered down On some i.MX platforms, certain I2C client drivers keep a periodic workqueue which continues to trigger I2C transfers. During system suspend/resume, there exists a ti...

UBUNTU-CVE-2026-64388

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix chown/chgrp with SMB3 POSIX Extensions Ownership chown and group chgrp modifications were being ignored when mounting with SMB3 POSIX Extensions unless CIFSMOUNTCIFSACL or CIFSMOUNTMODEFROMSID were also explicitly...

UBUNTU-CVE-2026-64418

In the Linux kernel, the following vulnerability has been resolved: mm: shrinker: fix shrinkerinfo teardown race with expansion expandshrinkerinfo iterates all visible memcgs under shrinkermutex, including memcgs that have not finished -cssonline yet. Once pn-shrinkerinfo has been published,...

UBUNTU-CVE-2026-64350

In the Linux kernel, the following vulnerability has been resolved: usb: cdnsp: fix stream context array leak in cdnspallocstreaminfo cdnspallocstreaminfo allocates streaminfo-streamctxarray with cdnspallocstreamctx. If a later stream ring allocation or stream mapping update fails, the error path...

UBUNTU-CVE-2026-64475

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Release the VGA arbiter client on registerdevice failure The re-order in the Fixes commit below displaced vfiopcivgainit as the last failure point of what is now vfiopcicoreregisterdevice without introducing an unwind f...

UBUNTU-CVE-2026-64313

In the Linux kernel, the following vulnerability has been resolved: crypto: ecc - Fix carry overflow in vli multiplication The carry flag calculation fails when r01.mhigh is saturated 0xFFFFFFFFFFFFFFFF and addition of lower bits overflows. The condition r01.mhigh product.mhigh doesn't handle the...

UBUNTU-CVE-2026-64298

In the Linux kernel, the following vulnerability has been resolved: NFSv4: include MAYWRITE in open permission mask for OTRUNC POSIX requires write permission to truncate a file, so an open that specifies OTRUNC must be authorized for write access regardless of the OACCMODE access mode...

UBUNTU-CVE-2026-64383

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix double-free in SMB2flush replay SMB2flush keeps its response buffer bookkeeping across replay attempts. If a replayable flush response is received and the retry then fails before cifssendrecv stores a replacement...

UBUNTU-CVE-2026-64357

In the Linux kernel, the following vulnerability has been resolved: xfs: fix exchmaps reservation limit check xfsexchmapsestimateoverhead adds the bmbt and rmapbt overhead to a local resblks variable, but the final UINTMAX check still tests req-resblks. That is the reservation value from before t...