In the Linux kernel, the following vulnerability has been resolved:

net/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter

The sch_cake ACK filter parses packets to find the TCP header and filter
duplicated ACKs if the flow is backlogged. The parsing code contains a
WARN_ON(1) which can be triggered by a malformed IP header in certain
cases. Depending on the system configuration, this leads either to
either spamming dmesg with warnings, or a panic if panic_on_warn is set.

The code already correctly skips the offending packet in the branch that
triggers the warning, so the WARN_ON itself doesn't really serve any
purpose. So just drop it altogether to avoid the inconvenient side
effects.

https://git.kernel.org/stable/c/0c4882bff34558d8d53fb04c3e96da5c327c7dc8

https://git.kernel.org/stable/c/2504a76e5c0694e14e15562730e1339f2d9f9458

https://git.kernel.org/stable/c/2a33516f9ef59ad11844d4fc152f889449b5daf3

https://git.kernel.org/stable/c/a1ae353d8355407c1bea971d1c1af5e7f242bb7d

https://git.kernel.org/stable/c/a4b52612004a5639c4bfc30ba93ba414b8326e2a

https://git.kernel.org/stable/c/ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3

https://git.kernel.org/stable/c/c1693b7844a6c06d31a565e5a494948034dfd235

https://git.kernel.org/stable/c/cd2f1d9fe8a507c2dc86ad326fe221f121c47734

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/sched/sch_cake.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"c1693b7844a6c06d31a565e5a494948034dfd235","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"a4b52612004a5639c4bfc30ba93ba414b8326e2a","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"ae1b2f8e21a41e7c7e75511bea0c4ccc59ec1bd3","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"0c4882bff34558d8d53fb04c3e96da5c327c7dc8","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"2504a76e5c0694e14e15562730e1339f2d9f9458","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"cd2f1d9fe8a507c2dc86ad326fe221f121c47734","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"a1ae353d8355407c1bea971d1c1af5e7f242bb7d","versionType":"git","status":"affected"},{"version":"8b7138814f29933898ecd31dfc83e35a30ee69f5","lessThan":"2a33516f9ef59ad11844d4fc152f889449b5daf3","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/sched/sch_cake.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.19","status":"affected"},{"version":"0","lessThan":"4.19","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.152","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.104","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.45","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.9","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]