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 applicationsUpgrade SLES:15.6
kernel-coco
to version 6.4.0-15061.12.coco15sp6.1 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-coco
package and not the kernel-coco
package as distributed by SLES
.
See How to fix?
for SLES:15.6
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors
Uprobes always use bpf_prog_run_array_uprobe() under tasks-trace-RCU protection. But it is possible to attach a non-sleepable BPF program to a uprobe, and non-sleepable BPF programs are freed via normal RCU (see __bpf_prog_put_noref()). This leads to UAF of the bpf_prog because a normal RCU grace period does not imply a tasks-trace-RCU grace period.
Fix it by explicitly waiting for a tasks-trace-RCU grace period after removing the attachment of a bpf_prog to a perf_event.