Re: [PATCH] ipv6: addrconf: drop "BUG: " prefix from pr_warn()

[Ido Schimmel]

On Fri, Aug 07, 2026 at 03:13:00PM +0200, Pimyn Girgis wrote:
> Kernel warning messages emitted via pr_warn() already have the
> appropriate log level (KERN_WARNING) and should not include manual
> prefixes such as "BUG: " or "WARNING: ".
> 
> Explicit "BUG: " prefixes in log strings can mislead testing tools
> like syzkaller, which scan kernel console output for "BUG: " to
> identify kernel oopses, panics, and fatal conditions.
> 
> Remove the manual "BUG: " prefix from the pr_warn() call in
> __ipv6_ifa_notify().
> 
> Fixes: 2d819d250a1393 ("ipv6: Handle missing host route in __ipv6_ifa_notify")
> Reported-by: syzbot+ded267b328e950a7c0c4@xxxxxxxxxxxxxxxxxxxxxxxxx
> Closes: https://syzkaller.appspot.com/bug?extid=ded267b328e950a7c0c4
> Signed-off-by: Pimyn Girgis <pimyn@xxxxxxxxxx>

I am able to reproduce this (there is no reproducer from syzbot, so I'm
not sure if it's the same one) and will investigate if we can avoid
getting into this state. If so, there wouldn't be any need to touch this
message.

Currently busy with more pressing issues, so this will take a while.