Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions from 4.1.40 up to but not including 4.2, from 4.4.54 up to but not including 4.5, from 4.9.15 up to but not including 4.10, from 4.10.3 up to but not including 4.11, and specifically in version 4.11. This vulnerability arises because dcache...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 6.12. It arises because when encountering an unreadable fragment, skbcopyandcsumbits copies only the linear portion and then returns 0, leaving unfilled parts in the caller’s buffer. This may result in residual bytes from memory being...

PT-2026-121978

In the Linux kernel, the following vulnerability has been resolved: drm/xe/i2c: cancel the client work on remove xe i2c notifier stores the DesignWare adapter in i2c-adapter and schedules i2c-work when the adapter is registered under the xe I2C platform device, and xe i2c client work then...

PT-2026-121983

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Prevent overstepping exec array boundary It is possible for eb relocate parse slow to call kvfree on entries outside the original exec array during following scenario inside eb relocate parse slow: 1 eb copy...

PT-2026-121987

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: free the skb when the DLC has no owner rfcomm recv data hands the skb to d-data ready and returns 0 without freeing it, so the callback owns the skb from that point on. The tty implementation frees it when the...

PT-2026-121972

In the Linux kernel, the following vulnerability has been resolved: namespace: reset the old parent's -overmount in mnt change mountpoint umount mnt resets -overmount of the parent when it unmounts the mount that overmounts it. mnt change mountpoint doesn't. It moves the mount to its new parent a...

PT-2026-121991

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci sync: Fix command skb lifetime during scan setup During PA sync scan setup, hci le set ext scan param sync gets the address used for the PA LINK lookup from hci sent cmd data. The returned pointer borrows storage...

PT-2026-121982

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gt: Unmask interrupts only when ACTIVE is true There is a small race window between intel rps boost reading a stale ACTIVE state and queuing rps-work, where ACTIVE may be changed via asynchronous calls triggered by waker...

PT-2026-121990

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Reject concurrent BIS listener setup iso sock listen drops the socket lock before calling iso listen bis to preserve the hdev-lock ordering. Two concurrent listen calls on the same broadcast socket can therefore...

PT-2026-121993

In the Linux kernel, the following vulnerability has been resolved: riscv: futex: untag the user pointer before the atomic access access ok checks untagged addruaddr, but arch futex atomic op inuser and futex atomic cmpxchg inatomic hand the raw uaddr to the inline asm amoswap/amoadd/.../lr.w+sc....

PT-2026-122000

In the Linux kernel, the following vulnerability has been resolved: power: sequencing: pcie-m2: Fix leaking array from of regulator bulk get all of regulator bulk get all allocates the consumers array and hands it to the caller, who is expected to free it at an appropriate time. pwrseq-pcie-m2.c...

PT-2026-121969

In the Linux kernel, the following vulnerability has been resolved: namespace: don't copy an unmounted mount tree may copy tree accepts a mount whose root is an nsfs or pidfs file before it checks whether that mount is mounted. This exception exists for nsfs and pidfs mounts. They are part of no...

PT-2026-121921

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Fix reference and vm bo handling in remap When a map overlaps part of an existing mapping, pvr vm gpuva remap splits the mapping into prev/next parts covering what the request did not take, instead of creating...

PT-2026-121945

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the AMT Automatic Multicast Tunneling module. An socket buffer skb queued in a queuing discipline qdisc can outlive the tunnel it references via a raw...

PT-2026-121947

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Free the BO cache size list on teardown vc4 bo cache destroy purges the cached BOs but never frees the size list, leaking it on every unbind...

CentOS Linux 8 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2026:1792759740)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2026:1792759740 advisory. - In the Linux kernel, the following vulnerability has been resolved: mrp: introduce active flags to prevent UAF when applicant...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 7.0. It stems from damonptepmkold failing to use page-aligned addresses, causing PTEAF entries outside sampled pages to be cleared during page table traversal and subsequent out-of-bounds writes. This may lead to a kernel crash or memory...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions prior to 6.18.55 and 7.2.9. This vulnerability stems from a default insufficient size of the kernel stack in 64-bit kernels, which may lead to a kernel stack overflow and trigger a kernel crash...

PT-2026-121889

In the Linux kernel, the following vulnerability has been resolved: parisc: Increase kernel stack size to 32kb For 64-bit Linux kernels, increase the default kernel stack size THREAD SIZE ORDER to 32 kB, in order to avoid kernel crashes which have been triggered recently when building the debian...

PT-2026-122007

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't leave stale bytes in skb copy and csum bits When skb copy and csum bits reaches unreadable frags it returns 0 after copying only the linear part, and the rest of the caller's buffer is left as it was. The calle...