On 8/17/23 08:45, Dave Jiang wrote:
On 8/17/23 04:41, Konstantin Meskhidze wrote:
'nd_pmu->pmu.attr_groups' is dereferenced in function
'nvdimm_pmu_free_hotplug_memory' call after it has been freed. Because in
function 'nvdimm_pmu_free_hotplug_memory' memory pointed by the fields of
'nd_pmu
On 8/17/23 04:59, Konstantin Meskhidze wrote:
Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
'unregister_nvdimm_pmu'.
Co-developed-by: Ivanov Mikhail
Signed-off-by: Konstantin Meskhidze
Applied
[ add Kajol ]
Konstantin Meskhidze wrote:
> 'nd_pmu->pmu.attr_groups' is dereferenced in function
> 'nvdimm_pmu_free_hotplug_memory' call after it has been freed. Because in
> function 'nvdimm_pmu_free_hotplug_memory' memory pointed by the fields of
> 'nd_pmu->pmu.attr_groups' is deallocated it is
On 8/17/23 04:41, Konstantin Meskhidze wrote:
'nd_pmu->pmu.attr_groups' is dereferenced in function
'nvdimm_pmu_free_hotplug_memory' call after it has been freed. Because in
function 'nvdimm_pmu_free_hotplug_memory' memory pointed by the fields of
'nd_pmu->pmu.attr_groups' is deallocated it is
[ add Kajol and Madhavan ]
Konstantin Meskhidze wrote:
> Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
> 'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
> 'unregister_nvdimm_pmu'.
Yes, looks like a real issue, but also completely avoidable by using
Konstantin Meskhidze writes:
> Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
> 'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
> 'unregister_nvdimm_pmu'.
>
> Co-developed-by: Ivanov Mikhail
> Signed-off-by: Konstantin Meskhidze
> ---
> drivers/nv
Konstantin Meskhidze writes:
> 'nd_pmu->pmu.attr_groups' is dereferenced in function
> 'nvdimm_pmu_free_hotplug_memory' call after it has been freed. Because in
> function 'nvdimm_pmu_free_hotplug_memory' memory pointed by the fields of
> 'nd_pmu->pmu.attr_groups' is deallocated it is necessary t
'nd_pmu->pmu.attr_groups' is dereferenced in function
'nvdimm_pmu_free_hotplug_memory' call after it has been freed. Because in
function 'nvdimm_pmu_free_hotplug_memory' memory pointed by the fields of
'nd_pmu->pmu.attr_groups' is deallocated it is necessary to call 'kfree'
after 'nvdimm_pmu_free_h
Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
'unregister_nvdimm_pmu'.
Co-developed-by: Ivanov Mikhail
Signed-off-by: Konstantin Meskhidze
---
drivers/nvdimm/nd_perf.c | 1 +
1 file changed, 1 insert
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