The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applicationsThere is no fixed version for RHEL:9
kernel-rt-debug-devel-matched
.
Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-devel-matched
package and not the kernel-rt-debug-devel-matched
package as distributed by RHEL
.
See How to fix?
for RHEL:9
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
perf: Fix perf_pending_task() UaF
Per syzbot it is possible for perf_pending_task() to run after the event is free()'d. There are two related but distinct cases:
The first cannot be solved using task_work_cancel() since perf_release() itself might be called from a task_work (____fput), which means the current->task_works list is already empty and task_work_cancel() won't be able to find the perf_pending_task() entry.
The simplest alternative is extending the perf_event lifetime to cover the task_work.
The second is just silly, queueing a task_work while you know the event is going away makes no sense and is easily avoided by re-arranging how the event is marked STATE_DEAD and ensuring it goes through STATE_OFF on the way down.