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Cisco Bug: CSCum66933 - 3850: IOSd Crash Due to IGMP Snooping

Last Modified

Apr 17, 2019

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

A 3850 series switch may experience a crash in the IOSd process due to IGMP snooping.

WCDB (Wireless Client DataBase) is being accessed via the fast path while changes are being made in the slow path.
This leads to a race condition that can result in a crash.
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