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icmp6: zero out pad space

Description

icmp6: zero out pad space

In icmp6_redirect_output() we potentially add padding, but failed to clear this
memory. This triggered a KMSAN panic during the sys/netinet/carp:unicast_v6
test.

Reviewed by: zlei
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D50461

Details

Provenance
kpAuthored on May 22 2025, 9:23 AM
Reviewer
zlei
Differential Revision
D50461: icmp6: zero out pad space
Parents
rG7587f6d4840f: namei: Make stackable filesystems check harder for jail roots
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