korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-05 10:04:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

ice: Adjust over allocation of memory in ice_sched_add_root_node() and ice_sched_add_node()

Browse Source 
[ Upstream commit 62fdaf9e80 ]

In ice_sched_add_root_node() and ice_sched_add_node() there are calls to
devm_kcalloc() in order to allocate memory for array of pointers to
'ice_sched_node' structure. But incorrect types are used as sizeof()
arguments in these calls (structures instead of pointers) which leads to
over allocation of memory.

Adjust over allocation of memory by correcting types in devm_kcalloc()
sizeof() arguments.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Aleksandr Mishin 2024-07-10 15:39:49 +03:00 committed by Greg Kroah-Hartman
parent 21ba7132a9
commit 82465e05ca
1 changed files with 2 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/intel/ice/ice_sched.c
View File

@ -28,9 +28,8 @@ ice_sched_add_root_node(struct ice_port_info *pi,
if (!root)
return -ENOMEM;
/* coverity[suspicious_sizeof] */
root->children = devm_kcalloc(ice_hw_to_dev(hw), hw->max_children[0],
sizeof(*root), GFP_KERNEL);
sizeof(*root->children), GFP_KERNEL);
if (!root->children) {
devm_kfree(ice_hw_to_dev(hw), root);
return -ENOMEM;
@ -186,10 +185,9 @@ ice_sched_add_node(struct ice_port_info *pi, u8 layer,
if (!node)
return -ENOMEM;
if (hw->max_children[layer]) {
/* coverity[suspicious_sizeof] */
node->children = devm_kcalloc(ice_hw_to_dev(hw),
hw->max_children[layer],
sizeof(*node), GFP_KERNEL);
sizeof(*node->children), GFP_KERNEL);
if (!node->children) {
devm_kfree(ice_hw_to_dev(hw), node);
return -ENOMEM;