DepSurf

Function: check_zeroed_user

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: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff8152c1a0)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffff8152c1a0-ffffffff8152c261: check_zeroed_user (STB_GLOBAL)
  

• In 5.8: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff8158fa70)
  Location: lib/usercopy.c:51
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:__do_sys_bpf
    - kernel/bpf/syscall.c:bpf_obj_get_info_by_fd
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
  

  Symbols:

  ffffffff8158fa70-ffffffff8158fb31: check_zeroed_user (STB_GLOBAL)
  

• In 5.11: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff815ac5a0)
  Location: lib/usercopy.c:54
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:__do_sys_bpf
    - kernel/bpf/syscall.c:bpf_obj_get_info_by_fd
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
    - fs/io_uring.c:io_req_prep
  

  Symbols:

  ffffffff815ac5a0-ffffffff815ac67a: check_zeroed_user (STB_GLOBAL)
  

• In 5.13: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff815b7270)
  Location: lib/usercopy.c:54
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:__do_sys_bpf
    - kernel/bpf/syscall.c:bpf_obj_get_info_by_fd
    - kernel/bpf/syscall.c:bpf_obj_get_info_by_fd
    - kernel/bpf/syscall.c:bpf_obj_get_info_by_fd
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
    - fs/namespace.c:__do_sys_mount_setattr
    - fs/io_uring.c:io_req_prep
    - security/landlock/syscalls.c:__ia32_sys_landlock_create_ruleset
    - security/landlock/syscalls.c:__x64_sys_landlock_create_ruleset
  

  Symbols:

  ffffffff815b7270-ffffffff815b732e: check_zeroed_user (STB_GLOBAL)
  

• In 5.15: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff8161d8a0)
  Location: lib/usercopy.c:54
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:bpf_check_uarg_tail_zero
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
    - fs/namespace.c:__do_sys_mount_setattr
    - fs/io_uring.c:io_req_prep
    - security/landlock/syscalls.c:__ia32_sys_landlock_create_ruleset
    - security/landlock/syscalls.c:__x64_sys_landlock_create_ruleset
  

  Symbols:

  ffffffff8161d8a0-ffffffff8161d960: check_zeroed_user (STB_GLOBAL)
  

• In 5.19: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff816eb400)
  Location: lib/usercopy.c:54
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:bpf_check_uarg_tail_zero
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__do_sys_openat2
    - fs/namespace.c:__do_sys_mount_setattr
    - security/landlock/syscalls.c:__ia32_sys_landlock_create_ruleset
    - security/landlock/syscalls.c:__x64_sys_landlock_create_ruleset
    - io_uring/io_uring.c:io_openat2_prep
  

  Symbols:

  ffffffff816eb400-ffffffff816eb4e6: check_zeroed_user (STB_GLOBAL)
  

• In 6.2: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff817dbad0)
  Location: lib/usercopy.c:62
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/bpf/syscall.c:bpf_check_uarg_tail_zero
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__do_sys_openat2
    - fs/namespace.c:__do_sys_mount_setattr
    - security/landlock/syscalls.c:__ia32_sys_landlock_create_ruleset
    - security/landlock/syscalls.c:__x64_sys_landlock_create_ruleset
    - io_uring/openclose.c:io_openat2_prep
    - net/ipv4/tcp.c:do_tcp_getsockopt
  

  Symbols:

  ffffffff817dbad0-ffffffff817dbba9: check_zeroed_user (STB_GLOBAL)
  

• In 6.5: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff8181ae80)
  Location: lib/usercopy.c:62
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/trace/trace_events_user.c:user_events_ioctl_unreg
    - kernel/trace/trace_events_user.c:user_events_ioctl_reg
    - kernel/bpf/syscall.c:bpf_check_uarg_tail_zero
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
    - fs/namespace.c:__ia32_sys_mount_setattr
    - fs/namespace.c:__x64_sys_mount_setattr
    - security/landlock/syscalls.c:__ia32_sys_landlock_create_ruleset
    - security/landlock/syscalls.c:__x64_sys_landlock_create_ruleset
    - io_uring/openclose.c:io_openat2_prep
    - net/ipv4/tcp.c:do_tcp_getsockopt
  

  Symbols:

  ffffffff8181ae80-ffffffff8181af47: check_zeroed_user (STB_GLOBAL)
  

• In 6.8: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff818601d0)
  Location: lib/usercopy.c:62
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_addfd
    - kernel/seccomp.c:seccomp_notify_recv
    - kernel/trace/trace_events_user.c:user_events_ioctl_unreg
    - kernel/trace/trace_events_user.c:user_events_ioctl_reg
    - kernel/bpf/syscall.c:bpf_check_uarg_tail_zero
    - kernel/events/core.c:perf_copy_attr
    - fs/open.c:__ia32_sys_openat2
    - fs/open.c:__x64_sys_openat2
    - fs/namespace.c:copy_mnt_id_req
    - fs/namespace.c:__ia32_sys_mount_setattr
    - fs/namespace.c:__x64_sys_mount_setattr
    - security/landlock/syscalls.c:__do_sys_landlock_create_ruleset
    - io_uring/openclose.c:io_openat2_prep
    - net/ipv4/tcp.c:do_tcp_getsockopt
  

  Symbols:

  ffffffff818601d0-ffffffff818602ac: check_zeroed_user (STB_GLOBAL)
  

Arch

• In arm64: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffff800010637e10)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:__arm64_sys_sched_setattr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffff800010637e10-ffff80001063812c: check_zeroed_user (STB_GLOBAL)
  

• In armhf: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (c07dd964)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:__se_sys_sched_setattr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  c07dd964-c07dda84: check_zeroed_user (STB_GLOBAL)
  

• In ppc64el: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (c0000000007de000)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:__se_sys_sched_setattr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  c0000000007de000-c0000000007de1a8: check_zeroed_user (STB_GLOBAL)
  

• In riscv64: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffe000464e74)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:__se_sys_sched_setattr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffe000464e74-ffffffe000464f08: check_zeroed_user (STB_GLOBAL)
  

Flavor

• In aws: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff81524780)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffff81524780-ffffffff81524841: check_zeroed_user (STB_GLOBAL)
  

• In azure: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff81514a60)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffff81514a60-ffffffff81514b21: check_zeroed_user (STB_GLOBAL)
  

• In gcp: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff81520810)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffff81520810-ffffffff815208d1: check_zeroed_user (STB_GLOBAL)
  

• In lowlatency: ✅

  int check_zeroed_user(const void *from, size_t size);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In lib/usercopy.c (ffffffff8153a190)
  Location: lib/usercopy.c:50
  Inline: False
  Direct callers:
    - kernel/fork.c:copy_clone_args_from_user
    - kernel/sched/core.c:sched_copy_attr
    - kernel/seccomp.c:seccomp_notify_ioctl
    - kernel/events/core.c:perf_copy_attr
  

  Symbols:

  ffffffff8153a190-ffffffff8153a251: check_zeroed_user (STB_GLOBAL)
  

Differences

Regular

• No changes between 5.4 and 5.8 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• No changes between 5.15 and 5.19 ✅
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅