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| author | Abdun Nihaal <nihaal@cse.iitm.ac.in> | 2025-10-23 19:48:42 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-10-27 17:55:41 -0700 |
| commit | 46a499aaf8c27476fd05e800f3e947bfd71aa724 (patch) | |
| tree | dbd1050a848a3413fa0a30efc38693f11773c85f /drivers/net/ethernet | |
| parent | net: hns3: return error code when function fails (diff) | |
| download | linux-46a499aaf8c27476fd05e800f3e947bfd71aa724.tar.gz linux-46a499aaf8c27476fd05e800f3e947bfd71aa724.zip | |
sfc: fix potential memory leak in efx_mae_process_mport()
In efx_mae_enumerate_mports(), memory allocated for mae_mport_desc is
passed as a argument to efx_mae_process_mport(), but when the error path
in efx_mae_process_mport() gets executed, the memory allocated for desc
gets leaked.
Fix that by freeing the memory allocation before returning error.
Fixes: a6a15aca4207 ("sfc: enumerate mports in ef100")
Acked-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: Abdun Nihaal <nihaal@cse.iitm.ac.in>
Link: https://patch.msgid.link/20251023141844.25847-1-nihaal@cse.iitm.ac.in
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet')
| -rw-r--r-- | drivers/net/ethernet/sfc/mae.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/mae.c b/drivers/net/ethernet/sfc/mae.c index 6fd0c1e9a7d5..7cfd9000f79d 100644 --- a/drivers/net/ethernet/sfc/mae.c +++ b/drivers/net/ethernet/sfc/mae.c @@ -1090,6 +1090,9 @@ void efx_mae_remove_mport(void *desc, void *arg) kfree(mport); } +/* + * Takes ownership of @desc, even if it returns an error + */ static int efx_mae_process_mport(struct efx_nic *efx, struct mae_mport_desc *desc) { @@ -1100,6 +1103,7 @@ static int efx_mae_process_mport(struct efx_nic *efx, if (!IS_ERR_OR_NULL(mport)) { netif_err(efx, drv, efx->net_dev, "mport with id %u does exist!!!\n", desc->mport_id); + kfree(desc); return -EEXIST; } |