DepSurf

Struct: `kfence_metadata`

Status

Regular

In 4.4: Absent ⚠️
In 4.8: Absent ⚠️
In 4.10: Absent ⚠️
In 4.13: Absent ⚠️
In 4.15: Absent ⚠️
In 4.18: Absent ⚠️
In 5.0: Absent ⚠️
In 5.3: Absent ⚠️
In 5.4: Absent ⚠️
In 5.8: Absent ⚠️
In 5.11: Absent ⚠️
In 5.13: Absent ⚠️

In 5.15: ✅

struct kfence_metadata {
    struct list_head list;
    struct callback_head callback_head;
    raw_spinlock_t lock;
    enum kfence_object_state state;
    long unsigned int addr;
    size_t size;
    struct kmem_cache *cache;
    long unsigned int unprotected_page;
    struct kfence_track alloc_track;
    struct kfence_track free_track;
};

In 5.19: ✅

struct kfence_metadata {
    struct list_head list;
    struct callback_head callback_head;
    raw_spinlock_t lock;
    enum kfence_object_state state;
    long unsigned int addr;
    size_t size;
    struct kmem_cache *cache;
    long unsigned int unprotected_page;
    struct kfence_track alloc_track;
    struct kfence_track free_track;
    u32 alloc_stack_hash;
    struct obj_cgroup *objcg;
};

In 6.2: ✅

struct kfence_metadata {
    struct list_head list;
    struct callback_head callback_head;
    raw_spinlock_t lock;
    enum kfence_object_state state;
    long unsigned int addr;
    size_t size;
    struct kmem_cache *cache;
    long unsigned int unprotected_page;
    struct kfence_track alloc_track;
    struct kfence_track free_track;
    u32 alloc_stack_hash;
    struct obj_cgroup *objcg;
};

In 6.5: ✅

struct kfence_metadata {
    struct list_head list;
    struct callback_head callback_head;
    raw_spinlock_t lock;
    enum kfence_object_state state;
    long unsigned int addr;
    size_t size;
    struct kmem_cache *cache;
    long unsigned int unprotected_page;
    struct kfence_track alloc_track;
    struct kfence_track free_track;
    u32 alloc_stack_hash;
    struct obj_cgroup *objcg;
};

In 6.8: ✅

struct kfence_metadata {
    struct list_head list;
    struct callback_head callback_head;
    raw_spinlock_t lock;
    enum kfence_object_state state;
    long unsigned int addr;
    size_t size;
    struct kmem_cache *cache;
    long unsigned int unprotected_page;
    struct kfence_track alloc_track;
    struct kfence_track free_track;
    u32 alloc_stack_hash;
    struct obj_cgroup *objcg;
};

Arch

In arm64: Absent ⚠️
In armhf: Absent ⚠️
In ppc64el: Absent ⚠️
In riscv64: Absent ⚠️

Flavor

In aws: Absent ⚠️
In azure: Absent ⚠️
In gcp: Absent ⚠️
In lowlatency: Absent ⚠️

Differences

Regular

Changed between 5.15 and 5.19 ⚠️
- Field added. u32 alloc_stack_hash
- Field added. struct obj_cgroup *objcg
No changes between 5.19 and 6.2 ✅
No changes between 6.2 and 6.5 ✅
No changes between 6.5 and 6.8 ✅

DepSurf

Struct: kfence_metadata

Status

Differences

Struct: `kfence_metadata`