Re: [PATCH 6.10.y] idpf: fix memleak in vport interrupt configuration
From: Greg KH
Date: Mon Aug 12 2024 - 10:20:12 EST
On Mon, Aug 12, 2024 at 03:44:55PM +0200, Alexander Lobakin wrote:
> From: Michal Kubiak <michal.kubiak@xxxxxxxxx>
>
> commit 3cc88e8405b8d55e0ff035e31971aadd6baee2b6 upstream.
>
> The initialization of vport interrupt consists of two functions:
> 1) idpf_vport_intr_init() where a generic configuration is done
> 2) idpf_vport_intr_req_irq() where the irq for each q_vector is
> requested.
>
> The first function used to create a base name for each interrupt using
> "kasprintf()" call. Unfortunately, although that call allocated memory
> for a text buffer, that memory was never released.
>
> Fix this by removing creating the interrupt base name in 1).
> Instead, always create a full interrupt name in the function 2), because
> there is no need to create a base name separately, considering that the
> function 2) is never called out of idpf_vport_intr_init() context.
>
> Fixes: d4d558718266 ("idpf: initialize interrupts and enable vport")
> Cc: stable@xxxxxxxxxxxxxxx # 6.7
> Signed-off-by: Michal Kubiak <michal.kubiak@xxxxxxxxx>
> Reviewed-by: Pavan Kumar Linga <pavan.kumar.linga@xxxxxxxxx>
> Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>
> Reviewed-by: Simon Horman <horms@xxxxxxxxxx>
> Tested-by: Krishneil Singh <krishneil.k.singh@xxxxxxxxx>
> Signed-off-by: Tony Nguyen <anthony.l.nguyen@xxxxxxxxx>
> Link: https://patch.msgid.link/20240806220923.3359860-3-anthony.l.nguyen@xxxxxxxxx
> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
> ---
> drivers/net/ethernet/intel/idpf/idpf_txrx.c | 19 ++++++++-----------
> 1 file changed, 8 insertions(+), 11 deletions(-)
>
Now queued up, thanks.
greg k-h