CVE-2026-89840

In the Linux kernel, the following vulnerability has been resolved: f2fs: validate MOVERANGE destination size F2FSIOCMOVERANGE checks the source range, but not the destination end before updating isize. A source hole can expose this: cloneblkaddrs skips NULLADDR entries and returns success, so th...

CVE-2026-89839

In the Linux kernel, the following vulnerability has been resolved: f2fs: use the mount idmap for the owner check in f2fsxattradviseset f2fsxattradviseset calls inodeownerorcapable with &nopmntidmap before allowing the "system.advise" xattr to be set, instead of the idmap that the VFS passes to t...

CVE-2026-89835

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid NULL checkpoint thread access in sysfs checkpointmerge can be enabled even when no checkpoint merge thread is running. A read-only mount is one case: f2fs does not start f2fsissueckpt there, but ckptthreadioprio is...

CVE-2026-89807

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: guard against NULL restoremqd in CRIU queue restore Both createqueuecpsch and createqueuenocpsch unconditionally call mqdmgr-restoremqd when a CRIU restore is in progress qd != NULL, with no NULL guard. On any system...

CVE-2026-89806

In the Linux kernel, the following vulnerability has been resolved: drm/sysfb: ofdrm: Fix integer overflow in fbsize calculation The framebuffer size calculation fbsize = linebytes height can overflow when both values are large e.g., 46341 46341 INTMAX. Since linebytes and height are both int...

CVE-2026-89801

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/uvmm: fix premature region free on failed OPUNMAPSPARSE In nouveauuvmmbindjobsubmit's OPUNMAPSPARSE arm, op-reg is set from nouveauuvmaregionfind, which only looks the region up and takes no reference; a region's sole...

CVE-2026-89797

In the Linux kernel, the following vulnerability has been resolved: power: supply: ab8500fg: fix use-after-free on remove ab8500fgremove destroys the driver workqueue while the threaded interrupt handlers are still armed; they are devm-managed and freed only after -remove returns, so a handler th...

CVE-2026-89796

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: avoid infinite kdamondmergeregions internal loop Patch series "mm/damon: unurgent fixes for infinite loop, NULL de-ref and races", v1.1. Sashiko found a few issues in DAMON that could cause infinite loop, NULL...

UBUNTU-CVE-2026-89793

In the Linux kernel, the following vulnerability has been resolved: ublk: clear VMMAYWRITE on read-only ublk char device mmap ublkchmmap rejects mmap requests with VMWRITE set, but never clears VMMAYWRITE on the resulting read-only mapping. This allows a userspace daemon to mmap the per-queue...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: PM: sleep: Fixed possible deadlocks in the system-wide PM code. It is reported that in low-memory situations, the system-wide resume core code may lead to deadlocks. This occurs because asyncscheduledev executes its argument...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validates the FF offset. This adds sanity checks for the FF offset. There is a check on rt-firstfree at the beginning, but there is also a check when traversing by FF without any validation. If the second FF is a large...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: scsi: target: targetcoreconfigfs: Added a length check to avoid buffer overflow. A buffer overflow occurs due to the use of snprintf to write data into the buffer “buf” in the targetlugpmembersshow function located in...

UBUNTU-CVE-2026-80920

In the Linux kernel, the following vulnerability has been resolved: iouring: defer eventfd signaling when queued from a wakeup handler ioreqlocalworkadd signals the CQ ring eventfd inline when it is the one to push the first entry onto -worklist. For DEFERTASKRUN rings that add is frequently done...

UBUNTU-CVE-2026-80915

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix DPT allocation paths. Remove the fallback for VRAM to system memory, I tested it and that doesn't work at all, only a black screen with pipe fault errors were observed. On systems with media GT, extra latency is added...

CVE-2026-80917

In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems On 32-bit systems the config space is too large to ioremap in one go, so pciecamcreate maps each bus segment separately and relies on the -addbus callback...

CVE-2026-80921

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: vsie: zero stale crypto bits When shadowing crypto access bits from a format0 apcb crycb 0 or 1, the bits 64..255 are unchanged from whatever is in the vsie page in the crycb and thus in the apcb. This gives a nested...

CVE-2026-80923

In the Linux kernel, the following vulnerability has been resolved: xhci: dbgtty: Fix unregister on ttyregisterdriver failure If ttyregisterdriver fails, it drops the reference, but fails to set the global dbcttydriver to NULL, causing the unregister to be called again when module exits. On modul...

CVE-2026-80924

In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfreesensitive for derived key buffers cryptokrb5prepareencryption and cryptokrb5preparechecksum free the buffer holding the freshly derived keys with plain kfree, leaving the key material behind in the freed...

UBUNTU-CVE-2026-80916

In the Linux kernel, the following vulnerability has been resolved: kcov: fix data corruption and race conditions on PREEMPTRT syzbot is reporting KCOV state corruption on PREEMPTRT kernels, for the temporary storage used for saving/restoring remote KCOV state is currently allocated as the per-CP...

UBUNTU-CVE-2026-80917

In the Linux kernel, the following vulnerability has been resolved: PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems On 32-bit systems the config space is too large to ioremap in one go, so pciecamcreate maps each bus segment separately and relies on the -addbus callback...