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Test your applicationsUpgrade SLES:15.5
kernel-devel
to version 5.14.21-150500.55.80.2 or higher.
Note: Versions mentioned in the description apply only to the upstream kernel-devel
package and not the kernel-devel
package as distributed by SLES
.
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In the Linux kernel, the following vulnerability has been resolved:
mptcp: Correctly set DATA_FIN timeout when number of retransmits is large
Syzkaller with UBSAN uncovered a scenario where a large number of DATA_FIN retransmits caused a shift-out-of-bounds in the DATA_FIN timeout calculation:
This change limits the maximum timeout by limiting the size of the shift, which keeps all intermediate values in-bounds.