Commit f6242b35 authored Nov 20, 2025 by Emil Tantilov Committed by Tony Nguyen Jan 06, 2026

idpf: fix memory leak in idpf_vport_rel()



Free vport->rx_ptype_lkup in idpf_vport_rel() to avoid leaking memory
during a reset. Reported by kmemleak:

unreferenced object 0xff450acac838a000 (size 4096):
  comm "kworker/u258:5", pid 7732, jiffies 4296830044
  hex dump (first 32 bytes):
    00 00 00 00 00 10 00 00 00 10 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 10 00 00 00 00 00 00  ................
  backtrace (crc 3da81902):
    __kmalloc_cache_noprof+0x469/0x7a0
    idpf_send_get_rx_ptype_msg+0x90/0x570 [idpf]
    idpf_init_task+0x1ec/0x8d0 [idpf]
    process_one_work+0x226/0x6d0
    worker_thread+0x19e/0x340
    kthread+0x10f/0x250
    ret_from_fork+0x251/0x2b0
    ret_from_fork_asm+0x1a/0x30

Fixes: 0fe45467 ("idpf: add create vport and netdev configuration")
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Reviewed-by: Madhu Chittim <madhu.chittim@intel.com>
Tested-by: Samuel Salin <Samuel.salin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

parent 2e281e11

drivers/net/ethernet/intel/idpf/idpf_lib.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1082,6 +1082,8 @@ static void idpf_vport_rel(struct idpf_vport *vport)
		kfree(adapter->vport_config[idx]->req_qs_chunks);
		adapter->vport_config[idx]->req_qs_chunks = NULL;
		}
		kfree(vport->rx_ptype_lkup);
		vport->rx_ptype_lkup = NULL;
		kfree(vport);
		adapter->num_alloc_vports--;
		}