From: patchwork-bot+netdevbpf@kernel.org
To: phx <phx0fer@gmail.com>
Cc: davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org,
pabeni@redhat.com, netdev@vger.kernel.org
Subject: Re: [PATCH net] net: xps: bound the cleanup loop by the old map's num_tc
Date: Tue, 27 Oct 2026 11:20:14 +0000 [thread overview]
Message-ID: <179310001483.3743855.12990694604364154535.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261021155538.67867-1-phx0fer@gmail.com>
Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:
On Wed, 21 Oct 2026 23:55:38 +0800 you wrote:
> __netif_set_xps_queue() walks the OLD dev_maps to free its entries. The
> per-row trip count uses the NEW num_tc while the row stride uses the OLD
> dev_maps->num_tc, so when dev->num_tc was raised without rebuilding the
> XPS map the last row indexes attr_map[] past the allocation:
>
> BUG: KASAN: slab-out-of-bounds in __netif_set_xps_queue+0x1458/0x1ee8
> Read of size 8 at addr ffff000014f69458 by task insmod/112
>
> [...]
Here is the summary with links:
- [net] net: xps: bound the cleanup loop by the old map's num_tc
https://git.kernel.org/netdev/net/c/6d5a2cb0b7d6
You are awesome, thank you!
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prev parent reply other threads:[~2026-10-27 11:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-21 15:55 [PATCH net] net: xps: bound the cleanup loop by the old map's num_tc Dudu Lu
2026-10-23 10:07 ` Antoine Tenart
2026-10-25 17:32 ` netdev-bot+sashiko
2026-10-27 11:20 ` patchwork-bot+netdevbpf [this message]
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