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 Centos:9
kernel-64k-modules-partner
.
Note: Versions mentioned in the description apply only to the upstream kernel-64k-modules-partner
package and not the kernel-64k-modules-partner
package as distributed by Centos
.
See How to fix?
for Centos:9
relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
bluetooth/l2cap: sync sock recv cb and release
The problem occurs between the system call to close the sock and hci_rx_work, where the former releases the sock and the latter accesses it without lock protection.
CPU0 CPU1
---- ----
sock_close hci_rx_work
l2cap_sock_release hci_acldata_packet
l2cap_sock_kill l2cap_recv_frame
sk_free l2cap_conless_channel
l2cap_sock_recv_cb
If hci_rx_work processes the data that needs to be received before the sock is closed, then everything is normal; Otherwise, the work thread may access the released sock when receiving data.
Add a chan mutex in the rx callback of the sock to achieve synchronization between the sock release and recv cb.
Sock is dead, so set chan data to NULL, avoid others use invalid sock pointer.