[PATCH 0/7] net/ice: fix memory leaks

[PATCH 0/7] net/ice: fix memory leaks

[Anurag Mandal]

This series fixes memory leaks, and one double free, in the ice PMD.

a. The DDP package copy was freed twice when hardware table
   initialization failed during probe.

b. The switch filter management structures, the DDP package copy and
   any remaining VSI contexts were never freed on port close or
   reset.

c. The DDP filename devarg string leaked on probe failure, and when
   the devarg was given more than once.

d. The main VSI leaked when probe failed after PF setup.

e. MAC and VLAN filter entries could stay allocated when a VSI was
   released.

f. A failed flow director setup leaked the FDIR VSI, hash table, hash
   map and counter pools.

g. The flow segment used to create the ACL profiles leaked on every
   ACL engine init.

Anurag Mandal (7):
  net/ice: fix DDP package double free on init failure
  net/ice: fix memory leaks on port close
  net/ice: fix DDP filename leak
  net/ice: fix main VSI leak on init failure
  net/ice: fix MAC and VLAN filter leak on VSI release
  net/ice: fix FDIR resource leak on setup failure
  net/ice: fix ACL profile segment leak

 drivers/net/intel/ice/ice_acl_filter.c  |  1 +
 drivers/net/intel/ice/ice_ethdev.c      | 33 +++++++++++++++++++++----
 drivers/net/intel/ice/ice_fdir_filter.c | 10 ++++++--
 3 files changed, 37 insertions(+), 7 deletions(-)

-- 
2.25.1

[PATCH 1/7] net/ice: fix DDP package double free on init failure

[Anurag Mandal]

When ice_init_hw_tbls() fails, ice_dev_init() frees the DDP package
copy but leaves hw->pkg_copy and hw->seg pointing into it. Without
safe mode, the error path then calls ice_deinit_hw(), which frees
the package copy again through ice_free_seg().

Use ice_free_seg(), which also clears these pointers.

Fixes: 9c4f15901ada ("net/ice: free memory with matching allocator")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index b846555b97..dd3a4976ab 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -2785,7 +2785,7 @@ ice_dev_init(struct rte_eth_dev *dev)
 		ret = ice_init_hw_tbls(hw);
 		if (ret) {
 			PMD_INIT_LOG(ERR, "ice_init_hw_tbls failed: %d", ret);
-			ice_free(hw, hw->pkg_copy);
+			ice_free_seg(hw);
 		}
 	}
 
-- 
2.25.1

[PATCH 2/7] net/ice: fix memory leaks on port close

[Anurag Mandal]

ice_dev_close() tears down the hardware state rather than with
ice_deinit_hw(), and never frees the switch filter management
structures, the DDP package copy or any remaining VSI contexts.
As ice_dev_reset() is a close followed by an init, they also
leak on every port reset.

Free them on close.

Fixes: f9cf4f864150 ("net/ice: support device initialization")
Fixes: 9c4f15901ada ("net/ice: free memory with matching allocator")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index dd3a4976ab..27f992aefa 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -3109,8 +3109,12 @@ ice_dev_close(struct rte_eth_dev *dev)
 
 	ice_res_pool_destroy(&pf->msix_pool);
 	ice_release_vsi(pf->main_vsi);
+	ice_cleanup_fltr_mgmt_struct(hw);
+	hw->switch_info = NULL;
 	ice_sched_cleanup_all(hw);
 	ice_free_hw_tbls(hw);
+	ice_free_seg(hw);
+	ice_clear_all_vsi_ctx(hw);
 	ice_free(hw, hw->port_info);
 	hw->port_info = NULL;
 	free((void *)(uintptr_t)ad->devargs.ddp_filename);
-- 
2.25.1

[PATCH 3/7] net/ice: fix DDP filename leak

[Anurag Mandal]

The DDP package filename given with the ddp_pkg_file devarg is
duplicated with strdup() during devargs parsing, but only freed on
close. It leaks when ice_dev_init() fails at or after devargs
parsing, and when the devarg is given more than once.

Free the previous string before storing a new one, and free it on all
init error paths.

Fixes: 9dd6dd1db834 ("net/ice: add option to choose DDP package file")
Fixes: 603beeb970b5 ("net/ice: add safe mode devarg")
Fixes: f9cf4f864150 ("net/ice: support device initialization")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index 27f992aefa..ec4d021ec6 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -805,6 +805,7 @@ handle_ddp_filename_arg(__rte_unused const char *key, const char *value, void *n
 		PMD_DRV_LOG(ERR, "The DDP package filename is too long : '%s'", value);
 		return -1;
 	}
+	free((void *)(uintptr_t)*filename);
 	*filename = strdup(value);
 	return 0;
 }
@@ -2738,7 +2739,8 @@ ice_dev_init(struct rte_eth_dev *dev)
 	ret = ice_parse_devargs(dev);
 	if (ret) {
 		PMD_INIT_LOG(ERR, "Failed to parse devargs");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_free_devargs;
 	}
 
 	ice_init_controlq_parameter(hw);
@@ -2746,7 +2748,8 @@ ice_dev_init(struct rte_eth_dev *dev)
 	ret = ice_init_hw(hw);
 	if (ret) {
 		PMD_INIT_LOG(ERR, "Failed to initialize HW");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_free_devargs;
 	}
 
 	/*
@@ -2761,7 +2764,8 @@ ice_dev_init(struct rte_eth_dev *dev)
 		PMD_INIT_LOG(ERR, "Invalid rl_burst_size %u bytes",
 			     ad->devargs.rl_burst_size);
 		ice_deinit_hw(hw);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err_free_devargs;
 	}
 
 #ifndef RTE_EXEC_ENV_WINDOWS
@@ -2912,6 +2916,9 @@ ice_dev_init(struct rte_eth_dev *dev)
 err_init_fw:
 #endif
 	ice_deinit_hw(hw);
+err_free_devargs:
+	free((void *)(uintptr_t)ad->devargs.ddp_filename);
+	ad->devargs.ddp_filename = NULL;
 
 	return ret;
 }
-- 
2.25.1

[PATCH 4/7] net/ice: fix main VSI leak on init failure

[Anurag Mandal]

When ice_send_driver_ver(), ice_flow_init() or ice_reset_fxp_resource()
fails in ice_dev_init(), the error path skips releasing the main VSI
created by ice_pf_setup(). This leaks the VSI structure, its MAC
filters and the VSI in hardware.

Release the main VSI on these error paths.

Fixes: 9481b0902efe ("net/ice: send driver version to firmware")
Fixes: 96b25c496aad ("net/ice: fix memzone leak after device init failure")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index ec4d021ec6..73fa016066 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -2833,7 +2833,7 @@ ice_dev_init(struct rte_eth_dev *dev)
 	ret = ice_send_driver_ver(hw);
 	if (ret) {
 		PMD_INIT_LOG(ERR, "Failed to send driver version");
-		goto err_pf_setup;
+		goto err_release_vsi;
 	}
 
 	vsi = pf->main_vsi;
@@ -2905,6 +2905,9 @@ ice_dev_init(struct rte_eth_dev *dev)
 	ice_pf_disable_irq0(hw);
 	rte_intr_callback_unregister(intr_handle,
 				     ice_interrupt_handler, dev);
+err_release_vsi:
+	ice_release_vsi(pf->main_vsi);
+	pf->main_vsi = NULL;
 err_pf_setup:
 	ice_res_pool_destroy(&pf->msix_pool);
 err_msix_pool_init:
-- 
2.25.1

[PATCH 5/7] net/ice: fix MAC and VLAN filter leak on VSI release

[Anurag Mandal]

ice_release_vsi() relies on ice_remove_all_mac_vlan_filters() to free
the MAC and VLAN filter entries. That function returns early when the
VSI has no MAC filter, or when removing a filter from hardware fails,
leaving entries in the lists. The VSI is then freed with them still
allocated.

Free any entries left in the lists before freeing the VSI.

Fixes: e0dcf94a0d7f ("net/ice: support VLAN ops")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_ethdev.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
index 73fa016066..90e3663287 100644
--- a/drivers/net/intel/ice/ice_ethdev.c
+++ b/drivers/net/intel/ice/ice_ethdev.c
@@ -2931,6 +2931,9 @@ ice_release_vsi(struct ice_vsi *vsi)
 {
 	struct ice_hw *hw;
 	struct ice_vsi_ctx vsi_ctx;
+	struct ice_mac_filter *m_f;
+	struct ice_vlan_filter *v_f;
+	void *temp;
 	int ret, error = 0;
 
 	if (!vsi)
@@ -2940,6 +2943,12 @@ ice_release_vsi(struct ice_vsi *vsi)
 
 	ice_remove_all_mac_vlan_filters(vsi);
 
+	/* filters whose HW removal failed or was skipped are still listed */
+	RTE_TAILQ_FOREACH_SAFE(m_f, &vsi->mac_list, next, temp)
+		rte_free(m_f);
+	RTE_TAILQ_FOREACH_SAFE(v_f, &vsi->vlan_list, next, temp)
+		rte_free(v_f);
+
 	memset(&vsi_ctx, 0, sizeof(vsi_ctx));
 
 	vsi_ctx.vsi_num = vsi->vsi_id;
-- 
2.25.1

[PATCH 6/7] net/ice: fix FDIR resource leak on setup failure

[Anurag Mandal]

ice_fdir_setup() returns directly when the filter list or counter
initialization fails, leaking the FDIR VSI, plus the filter hash table
and map in the counter case. Its other error paths release the queues
and the VSI, but not the hash table, hash map or counter pools.

As fdir_vsi is reset on failure, ice_fdir_teardown() cannot release
them later either. The hash table name also stays registered, so the
next FDIR setup for the device fails.

Release everything set up so far on all error paths.

Fixes: 1a2fc1799f09 ("net/ice: reject duplicated flow for flow director")
Fixes: 0f880c3df192 ("net/ice: add flow director counter resource init/release")
Fixes: 84dc7a95a2d3 ("net/ice: enable flow director engine")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_fdir_filter.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/intel/ice/ice_fdir_filter.c b/drivers/net/intel/ice/ice_fdir_filter.c
index 2350bd5523..44604cfae6 100644
--- a/drivers/net/intel/ice/ice_fdir_filter.c
+++ b/drivers/net/intel/ice/ice_fdir_filter.c
@@ -477,13 +477,15 @@ ice_fdir_setup(struct ice_pf *pf)
 	err = ice_fdir_init_filter_list(pf);
 	if (err) {
 		PMD_DRV_LOG(ERR, "Failed to init FDIR filter list.");
-		return -EINVAL;
+		err = -EINVAL;
+		goto fail_filter_list;
 	}
 
 	err = ice_fdir_counter_init(pf);
 	if (err) {
 		PMD_DRV_LOG(ERR, "Failed to init FDIR counter.");
-		return -EINVAL;
+		err = -EINVAL;
+		goto fail_counter;
 	}
 
 	/*Fdir tx queue setup*/
@@ -554,6 +556,10 @@ ice_fdir_setup(struct ice_pf *pf)
 	ice_tx_queue_release(pf->fdir.txq);
 	pf->fdir.txq = NULL;
 fail_setup_tx:
+	ice_fdir_counter_release(pf);
+fail_counter:
+	ice_fdir_release_filter_list(pf);
+fail_filter_list:
 	ice_release_vsi(vsi);
 	pf->fdir.fdir_vsi = NULL;
 	return err;
-- 
2.25.1

[PATCH 7/7] net/ice: fix ACL profile segment leak

[Anurag Mandal]

ice_acl_prof_init() allocates a flow segment to add the ACL profiles,
but only frees it on the error path. ice_flow_add_prof() copies the
segments, so the buffer is no longer needed once the profiles are
added, and it leaks on every ACL engine init.

Free it on success as well.

Fixes: 40d466fa9f76 ("net/ice: support ACL filter in DCF")

Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
---
 drivers/net/intel/ice/ice_acl_filter.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/intel/ice/ice_acl_filter.c b/drivers/net/intel/ice/ice_acl_filter.c
index 21b48e1009..d49e514d69 100644
--- a/drivers/net/intel/ice/ice_acl_filter.c
+++ b/drivers/net/intel/ice/ice_acl_filter.c
@@ -308,6 +308,7 @@ ice_acl_prof_init(struct ice_pf *pf)
 				goto err_assoc_prof;
 		}
 	}
+	ice_free(hw, seg);
 	return 0;
 
 err_assoc_prof:
-- 
2.25.1

Re: [PATCH 1/7] net/ice: fix DDP package double free on init failure

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:31AM +0000, Anurag Mandal wrote:
> When ice_init_hw_tbls() fails, ice_dev_init() frees the DDP package
> copy but leaves hw->pkg_copy and hw->seg pointing into it. Without
> safe mode, the error path then calls ice_deinit_hw(), which frees
> the package copy again through ice_free_seg().
> 
> Use ice_free_seg(), which also clears these pointers.
> 
> Fixes: 9c4f15901ada ("net/ice: free memory with matching allocator")
> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
>  drivers/net/intel/ice/ice_ethdev.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
> index b846555b97..dd3a4976ab 100644
> --- a/drivers/net/intel/ice/ice_ethdev.c
> +++ b/drivers/net/intel/ice/ice_ethdev.c
> @@ -2785,7 +2785,7 @@ ice_dev_init(struct rte_eth_dev *dev)
>  		ret = ice_init_hw_tbls(hw);
>  		if (ret) {
>  			PMD_INIT_LOG(ERR, "ice_init_hw_tbls failed: %d", ret);
> -			ice_free(hw, hw->pkg_copy);
> +			ice_free_seg(hw);
>  		}
>  	}
>  
> -- 
> 2.25.1
> 

Re: [PATCH 1/7] net/ice: fix DDP package double free on init failure

[Bruce Richardson]

On Tue, Oct 27, 2026 at 12:39:50PM +0000, Bruce Richardson wrote:
> On Tue, Oct 27, 2026 at 10:51:31AM +0000, Anurag Mandal wrote:
> > When ice_init_hw_tbls() fails, ice_dev_init() frees the DDP package
> > copy but leaves hw->pkg_copy and hw->seg pointing into it. Without
> > safe mode, the error path then calls ice_deinit_hw(), which frees
> > the package copy again through ice_free_seg().
> > 
> > Use ice_free_seg(), which also clears these pointers.
> > 
> > Fixes: 9c4f15901ada ("net/ice: free memory with matching allocator")
> > 
> > Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>

I think this needs a backport, because it also fixes:
Fixes: 7f7cbf80bdb7 ("net/ice: factorize firmware loading")

So will add that and CC stable on apply.

> > ---
> >  drivers/net/intel/ice/ice_ethdev.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
> > index b846555b97..dd3a4976ab 100644
> > --- a/drivers/net/intel/ice/ice_ethdev.c
> > +++ b/drivers/net/intel/ice/ice_ethdev.c
> > @@ -2785,7 +2785,7 @@ ice_dev_init(struct rte_eth_dev *dev)
> >  		ret = ice_init_hw_tbls(hw);
> >  		if (ret) {
> >  			PMD_INIT_LOG(ERR, "ice_init_hw_tbls failed: %d", ret);
> > -			ice_free(hw, hw->pkg_copy);
> > +			ice_free_seg(hw);
> >  		}
> >  	}
> >  
> > -- 
> > 2.25.1
> > 

Re: [PATCH 2/7] net/ice: fix memory leaks on port close

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:32AM +0000, Anurag Mandal wrote:
> ice_dev_close() tears down the hardware state rather than with
> ice_deinit_hw(), and never frees the switch filter management
> structures, the DDP package copy or any remaining VSI contexts.
> As ice_dev_reset() is a close followed by an init, they also
> leak on every port reset.
> 
> Free them on close.
> 
> Fixes: f9cf4f864150 ("net/ice: support device initialization")
> Fixes: 9c4f15901ada ("net/ice: free memory with matching allocator")
Cc: stable@dpdk.org
> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_ethdev.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
> index dd3a4976ab..27f992aefa 100644
> --- a/drivers/net/intel/ice/ice_ethdev.c
> +++ b/drivers/net/intel/ice/ice_ethdev.c
> @@ -3109,8 +3109,12 @@ ice_dev_close(struct rte_eth_dev *dev)
>  
>  	ice_res_pool_destroy(&pf->msix_pool);
>  	ice_release_vsi(pf->main_vsi);
> +	ice_cleanup_fltr_mgmt_struct(hw);
> +	hw->switch_info = NULL;
>  	ice_sched_cleanup_all(hw);
>  	ice_free_hw_tbls(hw);
> +	ice_free_seg(hw);
> +	ice_clear_all_vsi_ctx(hw);
>  	ice_free(hw, hw->port_info);
>  	hw->port_info = NULL;
>  	free((void *)(uintptr_t)ad->devargs.ddp_filename);
> -- 

AI review flagged a potential improvement:

“net/ice: fix memory leaks on port close”: some close-time resources remain
unreleased. This is a pre-existing gap, not introduced by these commits:
ice_dev_close() calls ice_sched_cleanup_all(), which does not free the
scheduler aggregation lists; the canonical ice_deinit_hw() also calls
ice_sched_clear_agg(). It likewise frees fd_ctr_base at ice_deinit_hw(),
while ice_init_hw() allocates that resource. Thus, close/reset can still
leave aggregation-list memory and the FD counter resource behind.
Confidence: 9/10.

Can you check if more work is needed here?

/Bruce

Re: [PATCH 3/7] net/ice: fix DDP filename leak

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:33AM +0000, Anurag Mandal wrote:
> The DDP package filename given with the ddp_pkg_file devarg is
> duplicated with strdup() during devargs parsing, but only freed on
> close. It leaks when ice_dev_init() fails at or after devargs
> parsing, and when the devarg is given more than once.
> 
> Free the previous string before storing a new one, and free it on all
> init error paths.
> 
> Fixes: 9dd6dd1db834 ("net/ice: add option to choose DDP package file")
> Fixes: 603beeb970b5 ("net/ice: add safe mode devarg")
> Fixes: f9cf4f864150 ("net/ice: support device initialization")

Cc: stable@dpdk.org

> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_ethdev.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
> index 27f992aefa..ec4d021ec6 100644
> --- a/drivers/net/intel/ice/ice_ethdev.c
> +++ b/drivers/net/intel/ice/ice_ethdev.c
> @@ -805,6 +805,7 @@ handle_ddp_filename_arg(__rte_unused const char *key, const char *value, void *n
>  		PMD_DRV_LOG(ERR, "The DDP package filename is too long : '%s'", value);
>  		return -1;
>  	}
> +	free((void *)(uintptr_t)*filename);

You can avoid the casting by changing the type of filename to char * in
this function only.

>  	*filename = strdup(value);
>  	return 0;
>  }
> @@ -2738,7 +2739,8 @@ ice_dev_init(struct rte_eth_dev *dev)
>  	ret = ice_parse_devargs(dev);
>  	if (ret) {
>  		PMD_INIT_LOG(ERR, "Failed to parse devargs");
> -		return -EINVAL;
> +		ret = -EINVAL;
> +		goto err_free_devargs;
>  	}
>  
>  	ice_init_controlq_parameter(hw);
> @@ -2746,7 +2748,8 @@ ice_dev_init(struct rte_eth_dev *dev)
>  	ret = ice_init_hw(hw);
>  	if (ret) {
>  		PMD_INIT_LOG(ERR, "Failed to initialize HW");
> -		return -EINVAL;
> +		ret = -EINVAL;
> +		goto err_free_devargs;
>  	}
>  
>  	/*
> @@ -2761,7 +2764,8 @@ ice_dev_init(struct rte_eth_dev *dev)
>  		PMD_INIT_LOG(ERR, "Invalid rl_burst_size %u bytes",
>  			     ad->devargs.rl_burst_size);
>  		ice_deinit_hw(hw);
> -		return -EINVAL;
> +		ret = -EINVAL;
> +		goto err_free_devargs;
>  	}
>  
>  #ifndef RTE_EXEC_ENV_WINDOWS
> @@ -2912,6 +2916,9 @@ ice_dev_init(struct rte_eth_dev *dev)
>  err_init_fw:
>  #endif
>  	ice_deinit_hw(hw);
> +err_free_devargs:
> +	free((void *)(uintptr_t)ad->devargs.ddp_filename);

I think this would be better using RTE_CAST_PTR, rather than using explicit
casts.

> +	ad->devargs.ddp_filename = NULL;
>  
>  	return ret;
>  }
> -- 
> 2.25.1
> 

Re: [PATCH 4/7] net/ice: fix main VSI leak on init failure

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:34AM +0000, Anurag Mandal wrote:
> When ice_send_driver_ver(), ice_flow_init() or ice_reset_fxp_resource()
> fails in ice_dev_init(), the error path skips releasing the main VSI
> created by ice_pf_setup(). This leaks the VSI structure, its MAC
> filters and the VSI in hardware.
> 
> Release the main VSI on these error paths.
> 
> Fixes: 9481b0902efe ("net/ice: send driver version to firmware")
> Fixes: 96b25c496aad ("net/ice: fix memzone leak after device init failure")
Cc: stable@dpdk.org
> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_ethdev.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Re: [PATCH 5/7] net/ice: fix MAC and VLAN filter leak on VSI release

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:35AM +0000, Anurag Mandal wrote:
> ice_release_vsi() relies on ice_remove_all_mac_vlan_filters() to free
> the MAC and VLAN filter entries. That function returns early when the
> VSI has no MAC filter, or when removing a filter from hardware fails,
> leaving entries in the lists. The VSI is then freed with them still
> allocated.
> 
> Free any entries left in the lists before freeing the VSI.
> 
> Fixes: e0dcf94a0d7f ("net/ice: support VLAN ops")
Cc: stable@dpdk.org
> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_ethdev.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> 
> diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c
> index 73fa016066..90e3663287 100644
> --- a/drivers/net/intel/ice/ice_ethdev.c
> +++ b/drivers/net/intel/ice/ice_ethdev.c
> @@ -2931,6 +2931,9 @@ ice_release_vsi(struct ice_vsi *vsi)
>  {
>  	struct ice_hw *hw;
>  	struct ice_vsi_ctx vsi_ctx;
> +	struct ice_mac_filter *m_f;
> +	struct ice_vlan_filter *v_f;
> +	void *temp;
>  	int ret, error = 0;
>  
>  	if (!vsi)
> @@ -2940,6 +2943,12 @@ ice_release_vsi(struct ice_vsi *vsi)
>  
>  	ice_remove_all_mac_vlan_filters(vsi);
>  
> +	/* filters whose HW removal failed or was skipped are still listed */
> +	RTE_TAILQ_FOREACH_SAFE(m_f, &vsi->mac_list, next, temp)
> +		rte_free(m_f);
> +	RTE_TAILQ_FOREACH_SAFE(v_f, &vsi->vlan_list, next, temp)
> +		rte_free(v_f);
> +
>  	memset(&vsi_ctx, 0, sizeof(vsi_ctx));
>  
>  	vsi_ctx.vsi_num = vsi->vsi_id;
> -- 
> 2.25.1
> 

Re: [PATCH 6/7] net/ice: fix FDIR resource leak on setup failure

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:36AM +0000, Anurag Mandal wrote:
> ice_fdir_setup() returns directly when the filter list or counter
> initialization fails, leaking the FDIR VSI, plus the filter hash table
> and map in the counter case. Its other error paths release the queues
> and the VSI, but not the hash table, hash map or counter pools.
> 
> As fdir_vsi is reset on failure, ice_fdir_teardown() cannot release
> them later either. The hash table name also stays registered, so the
> next FDIR setup for the device fails.
> 
> Release everything set up so far on all error paths.
> 
> Fixes: 1a2fc1799f09 ("net/ice: reject duplicated flow for flow director")
> Fixes: 0f880c3df192 ("net/ice: add flow director counter resource init/release")
> Fixes: 84dc7a95a2d3 ("net/ice: enable flow director engine")
Cc: stable@dpdk.org

> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_fdir_filter.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

Re: [PATCH 7/7] net/ice: fix ACL profile segment leak

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:37AM +0000, Anurag Mandal wrote:
> ice_acl_prof_init() allocates a flow segment to add the ACL profiles,
> but only frees it on the error path. ice_flow_add_prof() copies the
> segments, so the buffer is no longer needed once the profiles are
> added, and it leaks on every ACL engine init.
> 
> Free it on success as well.
> 
> Fixes: 40d466fa9f76 ("net/ice: support ACL filter in DCF")
> 
> Signed-off-by: Anurag Mandal <anurag.mandal@intel.com>
> ---
>  drivers/net/intel/ice/ice_acl_filter.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/intel/ice/ice_acl_filter.c b/drivers/net/intel/ice/ice_acl_filter.c
> index 21b48e1009..d49e514d69 100644
> --- a/drivers/net/intel/ice/ice_acl_filter.c
> +++ b/drivers/net/intel/ice/ice_acl_filter.c
> @@ -308,6 +308,7 @@ ice_acl_prof_init(struct ice_pf *pf)
>  				goto err_assoc_prof;
>  		}
>  	}
> +	ice_free(hw, seg);
>  	return 0;
>
While this change fixes the bug, I see no reason why we can't avoid the bug
completely by changing seg to be allocated on the stack rather than
dynamically allocated. Define and zero-init as:

	struct ice_flow_seg_info seg = {0};

And then the memory management issues disappear as its just a local
temporary buffer.

What do you think?

Re: [PATCH 0/7] net/ice: fix memory leaks

[Bruce Richardson]

On Tue, Oct 27, 2026 at 10:51:30AM +0000, Anurag Mandal wrote:
> This series fixes memory leaks, and one double free, in the ice PMD.
> 
> a. The DDP package copy was freed twice when hardware table
>    initialization failed during probe.
> 
> b. The switch filter management structures, the DDP package copy and
>    any remaining VSI contexts were never freed on port close or
>    reset.
> 
> c. The DDP filename devarg string leaked on probe failure, and when
>    the devarg was given more than once.
> 
> d. The main VSI leaked when probe failed after PF setup.
> 
> e. MAC and VLAN filter entries could stay allocated when a VSI was
>    released.
> 
> f. A failed flow director setup leaked the FDIR VSI, hash table, hash
>    map and counter pools.
> 
> g. The flow segment used to create the ACL profiles leaked on every
>    ACL engine init.
> 
> Anurag Mandal (7):
>   net/ice: fix DDP package double free on init failure
>   net/ice: fix memory leaks on port close
>   net/ice: fix DDP filename leak
>   net/ice: fix main VSI leak on init failure
>   net/ice: fix MAC and VLAN filter leak on VSI release
>   net/ice: fix FDIR resource leak on setup failure
>   net/ice: fix ACL profile segment leak
> 
See comments inline on each patch. Please respin with all patches CC'ed to
stable for backport, since all the underlying issues are present in earlier
releases.

Thanks,
/Bruce