Linux Function Heap Buffer Overflow DoS

The vulnerability of the xepreemptfencearm function in the drivers/gpu/drm/xe/xepreemptfence.c file of the Linux kernel is related to the reutilization of previously released memory due to competitive access to resources race condition. Exploiting this vulnerability could allow an attacker to...

kernel: powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT

A debug warning issue was found in PowerPC pseries code. When DEBUGPREEMPT is enabled, accessing lppacasharedproc triggers spurious preemption warnings because it uses smpprocessorid in preemptible context...

kernel: rcu: dump vmalloc memory info safely

A flaw was found in the Read-Copy-Update RCU core of the Linux kernel related to how memory information for vmalloc-allocated objects is dumped. Under certain sequences, calling callrcu may lead to the invocation of vmallocdumpobj while holding the vmaparealock spinlock in an interrupt context...

AZL-53537 CVE-2024-50140 affecting package kernel for versions less than 6.6.64.2-1

In the Linux kernel, the following vulnerability has been resolved: sched/core: Disable page allocation in tasktickmmcid With KASAN and PREEMPTRT enabled, calling taskworkadd in tasktickmmcid may cause the following splat. 63.696416 BUG: sleeping function called from invalid context at...

CVE-2024-50140 sched/core: Disable page allocation in task_tick_mm_cid()

In the Linux kernel, the following vulnerability has been resolved: sched/core: Disable page allocation in tasktickmmcid With KASAN and PREEMPTRT enabled, calling taskworkadd in tasktickmmcid may cause the following splat. 63.696416 BUG: sleeping function called from invalid context at...

PT-2024-35552

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.12.0-rc2+ Description The issue is related to the Linux kernel's KVM Kernel-based Virtual Machine component, specifically affecting LoongArch architecture. On PREEMPT RT enabled kernels, unmarked hrtimers are...

CVE-2022-49018 mptcp: fix sleep in atomic at close time

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix sleep in atomic at close time Matt reported a splat at msk close time: BUG: sleeping function called from invalid context at net/mptcp/protocol.c:2877 inatomic: 1, irqsdisabled: 0, nonblock: 0, pid: 155, name:...

PT-2024-33972

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.61 Description: The issue arises when KASAN and PREEMPT RT are enabled, and task work add is called in task tick mm cid, potentially causing a sleeping function to be called from an invalid context. This...

SUSE CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

DEBIAN-CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

UBUNTU-CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

CVE-2024-46683

CVE-2024-46683 refers to a Linux kernel vulnerability in the DRM/xe path where a use-after-free could occur around the preempt fence due to dropping the queue reference before the fence lock is secured. The issue arises because the fence lock was previously associated with the queue, and releasin...

CVE-2024-46683 drm/xe: prevent UAF around preempt fence

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

CVE-2024-46683

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

CVE-2024-46683 drm/xe: prevent UAF around preempt fence

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

CVE-2024-46683: Use After Free

In the Linux kernel, the following vulnerability has been resolved: drm/xe: prevent UAF around preempt fence The fence lock is part of the queue, therefore in the current design anything locking the fence should then also hold a ref to the queue to prevent the queue from being freed. However,...

SUSE CVE-2024-44956

In the Linux kernel, the following vulnerability has been resolved: drm/xe/preemptfence: enlarge the fence critical section It is really easy to introduce subtle deadlocks in preemptfenceworkfunc since we operate on single global ordered-wq for signalling our preempt fences behind the scenes, so...

AZL-48834 CVE-2024-44956 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: drm/xe/preemptfence: enlarge the fence critical section It is really easy to introduce subtle deadlocks in preemptfenceworkfunc since we operate on single global ordered-wq for signalling our preempt fences behind the scenes, so...

AZL-48763 CVE-2024-44956 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: drm/xe/preemptfence: enlarge the fence critical section It is really easy to introduce subtle deadlocks in preemptfenceworkfunc since we operate on single global ordered-wq for signalling our preempt fences behind the scenes, so...