CVE-2026-64317

In the Linux kernel, the following vulnerability has been resolved: isofs: bound Rock Ridge symlink components to the SL record getsymlinkchunk and the SL handling in parserockridgeinodeinternal walk the variable-length components of a Rock Ridge "SL" symbolic link record. Each component is a...

CVE-2026-64304

In the Linux kernel, the following vulnerability has been resolved: crypto: qat - validate RSA CRT component lengths The generic RSA key parser rsahelper.c bounds each CRT component p, q, dp, dq, qinv by the modulus size nsz, but qatrsasetkeycrt allocates half-size DMA buffers keysz / 2 and...

CVE-2026-64297

In the Linux kernel, the following vulnerability has been resolved: module: decompress: check return value of moduleextendmaxpages moduleextendmaxpages calls kvrealloc internally and returns -ENOMEM on allocation failure. The return value is never checked. If the initial allocation fails,...

AZL-93641 CVE-2026-64294 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: mm: do file ownership checks with the proper mount idmap Ever since idmapped mounts were introduced, inode ownership checks for side-channel protection in mincore and madviseMADVPAGEOUT were done against the nopmntidmap, which...

CVE-2026-64288

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Avoid dereferencing NULL VNCR pseudo-TLB VNCR TLB invalidation occurs from MMU notifiers or TLBI instructions, and either can race against a vcpu not being onlined yet no pseudo-TLB allocated. Similarly, the TLB...

CVE-2026-64283

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Treat memslot binding offset+size as unsigned values When binding a memslot to a guestmemfd file, treat the offset and size as unsigned values to fix a bug where the sum of the two can result in a false negative...

CVE-2026-64273

In the Linux kernel, the following vulnerability has been resolved: Input: iforce - bound the device-reported force-feedback effect index iforceprocesspacket handles a status report packet id 0x02 by taking a force-feedback effect index straight from the device wire and using it to address the...

UBUNTU-CVE-2026-64477

In the Linux kernel, the following vulnerability has been resolved: x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled The architecture updates the cpumask in a domain's header to track which online CPUs are associated with the domain. When this mask becomes empty t...

CVE-2026-64445

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth OnAuth has two bugs in the shared-key authentication path. When the Privacy bit is set, rtwwepdecrypt is called without verifying that the frame is long enough t...

CVE-2026-64403

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: validate option length before reading conf opt value l2capgetconfopt derives the option length from the attacker-controlled opt-len field and immediately dereferences opt-val as u8, getunalignedle16 or...

CVE-2026-64317

In the Linux kernel, the following vulnerability has been resolved: isofs: bound Rock Ridge symlink components to the SL record getsymlinkchunk and the SL handling in parserockridgeinodeinternal walk the variable-length components of a Rock Ridge "SL" symbolic link record. Each component is a...

CVE-2026-64283

In the Linux kernel, the following vulnerability has been resolved: KVM: guestmemfd: Treat memslot binding offset+size as unsigned values When binding a memslot to a guestmemfd file, treat the offset and size as unsigned values to fix a bug where the sum of the two can result in a false negative...

CVE-2026-64296

In the Linux kernel, the following vulnerability has been resolved: exfat: bound uniname advance in exfatfinddirentry In exfatfinddirentry, each TYPEEXTEND file name entry advances the output pointer by a fixed amount while the loop guard only tracks the accumulated name length: if ++order == 2...

CVE-2026-64505

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: function: rndis: add length check for header Add a length check for the rndis header in rndisrmhdr, to ensure that MessageType, MessageLength, DataOffset, and DataLength fields are present before they are accessed...

UBUNTU-CVE-2026-64361

In the Linux kernel, the following vulnerability has been resolved: hfs/hfsplus: fix u32 overflow in checkandcorrectrequestedlength checkandcorrectrequestedlength compares off + len against nodesize using u32 arithmetic. When the caller passes a large len value e.g. from an underflowed subtractio...

UBUNTU-CVE-2026-64445

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth OnAuth has two bugs in the shared-key authentication path. When the Privacy bit is set, rtwwepdecrypt is called without verifying that the frame is long enough t...

UBUNTU-CVE-2026-64514

In the Linux kernel, the following vulnerability has been resolved: userfaultfd: gate mustwait writability check on ptepresent userfaultfdmustwait and userfaultfdhugemustwait read the PTE without taking the page table lock and then apply ptewrite / hugeptewrite to it. Those accessors decode bits...

UBUNTU-CVE-2026-64380

In the Linux kernel, the following vulnerability has been resolved: smb: client: harden POSIX SID length parsing posixinfosidsize reads sid1 to obtain the subauthority count, but its existing boundary check still accepts buffers with only one remaining byte. Require two bytes before reading sid1 ...

UBUNTU-CVE-2026-64441

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix OOB reads in rtwgetsecie, rtwgetwapiie, and rtwgetwpsattr Three IE/attribute parsing functions have missing bounds checks. rtwgetsecie and rtwgetwapiie iterate over a raw IE buffer without verifying that t...

UBUNTU-CVE-2026-64398

In the Linux kernel, the following vulnerability has been resolved: ksmbd: add a permission check for FSCTLSETZERODATA FSCTLSETZERODATA in smb2ioctl destroys file data via ksmbdvfszerodata - vfsfallocatePUNCHHOLE/ZERORANGE after checking only the share-level KSMBDTREECONNFLAGWRITABLE, with no...