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

wifi: cfg80211: advance loop vars in cfg80211_merge_profile()

cfg80211_merge_profile() reassembles a Multi-BSSID non-transmitted BSS
profile that has been split across multiple consecutive MBSSID elements.
Its while-loop calls

	cfg80211_get_profile_continuation(ie, ielen, mbssid_elem, sub_elem)

but never advances mbssid_elem or sub_elem inside the body.  Each
iteration therefore searches for a continuation that follows the same
fixed pair; the helper returns the same next_mbssid; and the same
next_sub bytes are memcpy()'d into merged_ie at a growing offset until
the buffer fills.

Advance both mbssid_elem and sub_elem to the just-consumed continuation
so the next call to cfg80211_get_profile_continuation() searches for a
further continuation beyond it (or returns NULL when none exists).

A specially-crafted malicious beacon can take advantage of this bug
to cause the kernel to spend an excessive amount of time in
cfg80211_merge_profile (up to as much as 2ms per beacon received),
which could theoretically be abused in some way.

https://git.kernel.org/stable/c/1343a480f84b80c1249133a90ef87f8751d65cbb

https://git.kernel.org/stable/c/1ced0f5a851f9cae274545a42a06c459b7fd8881

https://git.kernel.org/stable/c/5817e1e5205498a5df66eba2b34e817f4210fd0f

https://git.kernel.org/stable/c/67915715fd3874057457363c87c63e18829527df

https://git.kernel.org/stable/c/6cfae4914439878b8acb35c7e3b40096eeb2ad9c

https://git.kernel.org/stable/c/7666dbb1bacc4ba522b96740cba7283d243d16e1

https://git.kernel.org/stable/c/c0bc4c8bd556cbe036a5b9ed333c0aab9aadfcb8

https://git.kernel.org/stable/c/cedbb608494ba1e7a5c6c56b7f1d3fd470094f28

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