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:15.4
kernel-livepatch-5_14_21-150400_24_122-default
to version 1-150400.9.3.2 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150400_24_122-default
package and not the kernel-livepatch-5_14_21-150400_24_122-default
package as distributed by SLES
.
See How to fix?
for SLES:15.4
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
drm/vc4: kms: Clear the HVS FIFO commit pointer once done
Commit 9ec03d7f1ed3 ("drm/vc4: kms: Wait on previous FIFO users before a commit") introduced a wait on the previous commit done on a given HVS FIFO.
However, we never cleared that pointer once done. Since drm_crtc_commit_put can free the drm_crtc_commit structure directly if we were the last user, this means that it can lead to a use-after free if we were to duplicate the state, and that stale pointer would even be copied to the new state.
Set the pointer to NULL once we're done with the wait so that we don't carry over a pointer to a free'd structure.