CVE-2026-89748

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix retry exhaustion in simple ring buffer reader swap simpleringbufferswapreaderpage starts with retry set to 8 and post-decrements it only after a failed link replacement. On the final attempt, a successful replacement...

CVE-2026-89734

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: Fix null pointer dereference in uvcgvideoinit In uvcgvideoinit, if kthreadrunworker fails, the error logged uses uvcgerr, however, the pointer it uses: video-uvc is not assigned at this point, triggering a null...

UBUNTU-CVE-2026-89763

In the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: Fix TPM teardown ordering trustedtpmexit drops the TPM chip reference and frees the digest array before unregistering the trusted key type. keytypelookup holds keytypessem for reading until the key operation...

UBUNTU-CVE-2026-89754

In the Linux kernel, the following vulnerability has been resolved: mm/pagewalk: fix stale walk-action escaping walkpmdrange If -pmdentry sets walk-action = ACTIONAGAIN, the pmdnone check is retried. The PMD entry may be cleared at the point of retry. In this case, if walk-ops-installpte is not...

UBUNTU-CVE-2026-89772

In the Linux kernel, the following vulnerability has been resolved: btrfs: write-protect folios during data writeback commit 095be159f3eb "btrfs: unify folio dirty flag clearing" replaced the foliocleardirtyforio call in extentwritecachepages with a plain foliotestdirty check. Besides clearing th...

AZL-100085 CVE-2026-89720 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

UBUNTU-CVE-2026-89734

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: Fix null pointer dereference in uvcgvideoinit In uvcgvideoinit, if kthreadrunworker fails, the error logged uses uvcgerr, however, the pointer it uses: video-uvc is not assigned at this point, triggering a null...

CVE-2026-89759

In the Linux kernel, the following vulnerability has been resolved: mm/kmemleak: avoid soft lockup when scanning task stacks Patch series "mm/kmemleak: avoid soft lockup when scanning task", v3. kmemleakscan scans every task stack under one rcureadlock with no reschedule point, which can trip the...

CVE-2026-89750

In the Linux kernel, the following vulnerability has been resolved: tracing/userevents: Clear copied tracing state before fork duplication duptaskstruct copies usereventmm from the parent into the child, without grabbing a reference to it. usereventmmdup should replace it, but it leaves that copi...

CVE-2026-89768

In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backingfileopen derives the path to be stored in the new backing file from userfile-fpath. This is incorrect when userfile itself is a backing file, which is the case for nested stacking...

CVE-2026-89721

In the Linux kernel, the following vulnerability has been resolved: phy: rockchip-samsung-dcphy: fix out-of-range maxregister The PHY register block is 64KB, so with a register stride of 4 the last accessible register sits at offset 0xfffc. maxregister names 0x10000, one register past the end of...

UBUNTU-CVE-2026-89762

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix cred UAF caused by begincurrentlabelcritsection AppArmor's begincurrentlabelcritsection is a scary function called from lots of LSM hooks in particular VFS/socket-related ones that checks if the label referenced by...

UBUNTU-CVE-2026-89768

In the Linux kernel, the following vulnerability has been resolved: fs: fix user path of nested backing files backingfileopen derives the path to be stored in the new backing file from userfile-fpath. This is incorrect when userfile itself is a backing file, which is the case for nested stacking...

DEBIAN-CVE-2026-89720

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

CVE-2026-89727

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: GICv2: Don't WARN on out-of-range GICVDIR INTID vgicv2deactivate passes the INTID a guest wrote to GICVDIR straight to vgicgetvcpuirq, and treats a failed lookup as a "can't happen" condition with WARNONONCE. The gues...

UBUNTU-CVE-2026-89747

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix use-after-free in tracepipe read on sub-buffer order change Writing to buffersubbufsizekb calls ringbuffersubbuforderset, which frees every sub-buffer of the ring buffer, including the reader page, and replaces them...

CVE-2026-89720

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

AZL-100142 CVE-2026-89713 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: NFSD: check truncate permission under inode lock nfsdsetattr checks whether a size update needs NFSDMAYTRUNC before it takes inodelock. The comparison uses the file size sampled by that unlocked read, but the actual ATTRSIZE upda...

DEBIAN-CVE-2026-89713

In the Linux kernel, the following vulnerability has been resolved: NFSD: check truncate permission under inode lock nfsdsetattr checks whether a size update needs NFSDMAYTRUNC before it takes inodelock. The comparison uses the file size sampled by that unlocked read, but the actual ATTRSIZE upda...

CVE-2026-89713

In the Linux kernel, the following vulnerability has been resolved: NFSD: check truncate permission under inode lock nfsdsetattr checks whether a size update needs NFSDMAYTRUNC before it takes inodelock. The comparison uses the file size sampled by that unlocked read, but the actual ATTRSIZE upda...