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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM4PR12MB5341.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 288e7a67-989d-44b9-d730-08d9f9ee0312 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Feb 2022 12:38:09.7172 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: qt48jTTlDKUkiiYBB3g0BkRNW8yg4WapHh0rJNX6dPcXleSuVLKoVmQqfFFb/dK9Cex3nFBqVEWvk+wRaYAw7Q== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4195 X-Mailman-Approved-At: Mon, 28 Feb 2022 17:01:56 +0100 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org > -----Original Message----- > From: Adham Masarwah > Sent: Sunday, February 27, 2022 2:33 PM > To: Idan Hackmon > Subject: RE: [PATCH] net/mlx5: fix destroying empty matchers list >=20 > > Subject: [PATCH] net/mlx5: fix destroying empty matchers list > > > > The table remove callback function is trying to destroy the matchers > > list associated with table entries without checking if the list is > > valid, which causes nullptr dereference. > > Fixed by validating the matchers list before destroying it. > > > > Issue can be reproduced with testpmd on Windows, when you run: > > port close all > > > > Fixes: 1872635570be ("net/mlx5: make matcher list thread safe") > > Cc: stable@dpdk.org > > > > Signed-off-by: Adham Masarwah > > Acked-by: Viacheslav Ovsiienko > > --- > > drivers/net/mlx5/mlx5_flow_dv.c | 3 ++- > > 1 file changed, 2 insertions(+), 1 deletion(-) > > > > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c > > b/drivers/net/mlx5/mlx5_flow_dv.c index ef9c66eddf..baef252a7a 100644 > > --- a/drivers/net/mlx5/mlx5_flow_dv.c > > +++ b/drivers/net/mlx5/mlx5_flow_dv.c > > @@ -10503,7 +10503,8 @@ flow_dv_tbl_remove_cb(void *tool_ctx, struct > > mlx5_list_entry *entry) > > tbl_data->tunnel->tunnel_id : 0, > > tbl_data->group_id); > > } > > - mlx5_list_destroy(tbl_data->matchers); > > + if (tbl_data->matchers) > > + mlx5_list_destroy(tbl_data->matchers); > > mlx5_ipool_free(sh->ipool[MLX5_IPOOL_JUMP], tbl_data->idx); } > > > > -- > > 2.16.1.windows.4 >=20 > Acked-by: Tal Shnaiderman Tested-by: Idan Hackmon