Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a reference counting error in the fpga:bridge module...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel, which stems from a reference counting error in the fpga:manager module...

SUSE CVE-2022-48753

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in diskregisterindependentaccessranges kobjectinitandadd takes reference even when it fails. According to the doc of kobjectinitandadd If this function returns an error, kobjectput must be called to properl...

SUSE CVE-2021-47534

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: kms: Add missing drmcrtccommitput Commit 9ec03d7f1ed3 "drm/vc4: kms: Wait on previous FIFO users before a commit" introduced a global state for the HVS, with each FIFO storing the current CRTC commit so that we can...

kernel: pid: take a reference when initializing `cad_pid`

In the Linux kernel, the following vulnerability has been resolved: pid: take a reference when initializing cadpid During boot, kernelinitfreeable initializes cadpid to the init task's struct pid. Later on, we may change cadpid via a sysctl, and when this happens procdocadpid will increment the...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that originates from the tcp module's use of refcountincnotzero in tcptwskunique...

CVE-2021-47500

In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iiodev. The IIO core when done using this trigger will call iiotriggerput to drop the reference count by 1. Without the...

CVE-2021-47500

In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iiodev. The IIO core when done using this trigger will call iiotriggerput to drop the reference count by 1. Without the...

DEBIAN-CVE-2021-47500

In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iiodev. The IIO core when done using this trigger will call iiotriggerput to drop the reference count by 1. Without the...

CVE-2021-47500 iio: mma8452: Fix trigger reference couting

In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iiodev. The IIO core when done using this trigger will call iiotriggerput to drop the reference count by 1. Without the...

SUSE CVE-2023-52879

In the Linux kernel, the following vulnerability has been resolved: tracing: Have traceeventfile have ref counters The following can crash the kernel: cd /sys/kernel/tracing echo 'p:sched schedule' kprobeevents exec 5events/kprobes/sched/enable kprobeevents exec 5&- The above commands: 1. Change...

SUSE CVE-2021-47358

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: uart: fix tty use after free User space can hold a tty open indefinitely and tty drivers must not release the underlying structures until the last user is gone. Switch to using the tty-port reference counter to...

CVE-2021-47327

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix armsmmudevice refcount leak when armsmmurpmget fails armsmmurpmget invokes pmruntimegetsync, which increases the refcount of the "smmu" even though the return value is less than 0. The reference counting issue...

CVE-2021-47325

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu: Fix armsmmudevice refcount leak in address translation The reference counting issue happens in several exception handling paths of armsmmuiovatophyshard. When those error scenarios occur, the function forgets to...

DEBIAN-CVE-2023-52879

In the Linux kernel, the following vulnerability has been resolved: tracing: Have traceeventfile have ref counters The following can crash the kernel: cd /sys/kernel/tracing echo 'p:sched schedule' kprobeevents exec 5events/kprobes/sched/enable kprobeevents exec 5&- The above commands: 1. Change...

DEBIAN-CVE-2023-52757

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential deadlock when releasing mids All releasemid callers seem to hold a reference of @mid so there is no need to call krefput&mid-refcount, releasemid under @server-midlock spinlock. If they don't, then an...

UBUNTU-CVE-2023-52879

In the Linux kernel, the following vulnerability has been resolved: tracing: Have traceeventfile have ref counters The following can crash the kernel: cd /sys/kernel/tracing echo 'p:sched schedule' kprobeevents exec 5events/kprobes/sched/enable kprobeevents exec 5&- The above commands: 1. Change...

CVE-2021-47303

In the Linux kernel, the following vulnerability has been resolved: bpf: Track subprog poke descriptors correctly and fix use-after-free Subprograms are calling mappoketrack, but on program release there is no hook to call mappokeuntrack. However, on program release, the aux memory and poke...

DEBIAN-CVE-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It...

UBUNTU-CVE-2021-47289

In the Linux kernel, the following vulnerability has been resolved: ACPI: fix NULL pointer dereference Commit 71f642833284 "ACPI: utils: Fix reference counting in foreachacpidevmatch" started doing "acpidevput" on a pointer that was possibly NULL. That fails miserably, because that helper inline...