DepSurf

Function: strncpy_from_user_nofault

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: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff81258310)
  Location: mm/maccess.c:270
  Inline: False
  Direct callers:
    - kernel/trace/bpf_trace.c:bpf_trace_printk
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_kprobe.c:process_fetch_insn
  

  Symbols:

  ffffffff81258310-ffffffff812583d6: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 5.11: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff81262b40)
  Location: mm/maccess.c:268
  Inline: False
  Direct callers:
    - kernel/trace/bpf_trace.c:bpf_trace_printk
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_kprobe.c:process_fetch_insn
  

  Symbols:

  ffffffff81262b40-ffffffff81262ba3: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 5.13: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff81267560)
  Location: mm/maccess.c:268
  Inline: False
  Direct callers:
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff81267560-ffffffff812675c3: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 5.15: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff812a3fa0)
  Location: mm/maccess.c:284
  Inline: False
  Direct callers:
    - kernel/trace/trace_events_filter.c:filter_pred_pchar_user
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff812a3fa0-ffffffff812a4003: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 5.19: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff812fc040)
  Location: mm/maccess.c:171
  Inline: False
  Direct callers:
    - kernel/trace/trace_events_filter.c:filter_pred_pchar_user
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff812fc040-ffffffff812fc0c1: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 6.2: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff81366280)
  Location: mm/maccess.c:171
  Inline: False
  Direct callers:
    - kernel/trace/trace_events_filter.c:filter_pred_fn_call
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff81366280-ffffffff81366301: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 6.5: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff81398720)
  Location: mm/maccess.c:177
  Inline: False
  Direct callers:
    - kernel/trace/trace_events_filter.c:filter_pred_fn_call
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_fprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff81398720-ffffffff813987a1: strncpy_from_user_nofault (STB_GLOBAL)
  

• In 6.8: ✅

  long int strncpy_from_user_nofault(char *dst, const void *unsafe_addr, long int count);
  

  Collision: Unique Global

  Inline: No

  Transformation: False

  Instances:

  In mm/maccess.c (ffffffff813c2520)
  Location: mm/maccess.c:177
  Inline: False
  Direct callers:
    - kernel/trace/trace_events_filter.c:filter_pred_fn_call
    - kernel/trace/trace_eprobe.c:process_fetch_insn
    - kernel/trace/trace_eprobe.c:get_eprobe_size
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/trace_events_synth.c:trace_string
    - kernel/trace/bpf_trace.c:bpf_probe_read_compat_str
    - kernel/trace/bpf_trace.c:bpf_probe_read_user_str
    - kernel/trace/trace_kprobe.c:process_fetch_insn
    - kernel/trace/trace_fprobe.c:process_fetch_insn
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
    - kernel/bpf/helpers.c:bpf_bprintf_prepare
  

  Symbols:

  ffffffff813c2520-ffffffff813c25a1: strncpy_from_user_nofault (STB_GLOBAL)
  

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

• 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 ✅