From: Jakub Kicinski <kuba@kernel.org>
To: Sasha Levin <sashal@kernel.org>
Cc: stable@vger.kernel.org, John Ernberg <john.ernberg@actia.se>
Subject: Re: [PATCH 5.4.y] net: usbnet: Avoid potential RCU stall on LINK_CHANGE event
Date: Wed, 13 Aug 2025 07:38:02 -0700 [thread overview]
Message-ID: <20250813073802.3f28d69c@kernel.org> (raw)
In-Reply-To: <20250813134932.2037778-1-sashal@kernel.org>
On Wed, 13 Aug 2025 09:49:32 -0400 Sasha Levin wrote:
> From: John Ernberg <john.ernberg@actia.se>
>
> [ Upstream commit 0d9cfc9b8cb17dbc29a98792d36ec39a1cf1395f ]
>
> The Gemalto Cinterion PLS83-W modem (cdc_ether) is emitting confusing link
> up and down events when the WWAN interface is activated on the modem-side.
>
> Interrupt URBs will in consecutive polls grab:
> * Link Connected
> * Link Disconnected
> * Link Connected
Be sure to pull in 8466d393700f9cc into the same release.
This change broke Linus's laptop.
next prev parent reply other threads:[~2025-08-13 14:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-12 15:21 FAILED: patch "[PATCH] net: usbnet: Avoid potential RCU stall on LINK_CHANGE event" failed to apply to 5.4-stable tree gregkh
2025-08-13 13:49 ` [PATCH 5.4.y] net: usbnet: Avoid potential RCU stall on LINK_CHANGE event Sasha Levin
2025-08-13 14:38 ` Jakub Kicinski [this message]
2025-08-24 8:45 ` Greg KH
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