WARNING in bpf_get_stack_raw_tp

Status: upstream: reported C repro on 2024/09/01 10:26
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+40432b66a5b71fa92989@syzkaller.appspotmail.com
First crash: 690d, last: 399d
Fix bisection: the issue occurs on the latest tested release (bisect log)
Crash: WARNING in bpf_get_stack_raw_tp (log)
Repro: C syz .config
  
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2025/06/19 linux-6.1.y (ToT) 58485ff1a74f C [report] WARNING in bpf_get_stack_raw_tp
2024/10/26 upstream (ToT) 850925a8133c C [report] WARNING in bpf_get_stack_raw_tp
2025/06/19 upstream (ToT) fb4d33ab452e C Didn't crash
▶ ▼ Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in bpf_get_stack_raw_tp origin:lts-only -1 C done 1080 392d 703d 0/3 auto-obsoleted due to no activity on 2025/09/04 03:28
upstream WARNING in bpf_get_stack_raw_tp bpf trace -1 C error error 179 429d 696d 0/29 auto-obsoleted due to no activity on 2025/09/01 20:40
▶ ▼ Fix bisection attempts (4)
Created Duration User Patch Repo Result
2025/07/16 11:08 1h51m fix candidate upstream OK (0) job log
2025/06/02 10:50 3h07m bisect fix linux-6.1.y OK (0) job log log
2025/04/29 17:03 5h44m bisect fix linux-6.1.y OK (0) job log log
2025/03/29 15:22 1h36m bisect fix linux-6.1.y OK (0) job log log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4275 at kernel/trace/bpf_trace.c:1800 get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1800 [inline]
WARNING: CPU: 0 PID: 4275 at kernel/trace/bpf_trace.c:1800 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1873 [inline]
WARNING: CPU: 0 PID: 4275 at kernel/trace/bpf_trace.c:1800 bpf_get_stack_raw_tp+0x196/0x1d0 kernel/trace/bpf_trace.c:1870
Modules linked in:
CPU: 0 PID: 4275 Comm: syz-executor509 Not tainted 6.1.141-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:get_bpf_raw_tp_regs kernel/trace/bpf_trace.c:1800 [inline]
RIP: 0010:____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1873 [inline]
RIP: 0010:bpf_get_stack_raw_tp+0x196/0x1d0 kernel/trace/bpf_trace.c:1870
Code: c8 45 31 c0 e8 8b 90 16 00 65 ff 0d 54 90 78 7e 4c 63 e0 4c 89 e0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fa 25 f6 ff <0f> 0b 65 ff 0d 31 90 78 7e 49 c7 c4 f0 ff ff ff eb d7 e8 e3 25 f6
RSP: 0018:ffffc90003df64d8 EFLAGS: 00010293
RAX: ffffffff818ab076 RBX: ffff8880b8e00000 RCX: ffff88801932d940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000fffffffc
RBP: ffffc90003df6510 R08: dffffc0000000000 R09: fffffbfff2117049
R10: fffffbfff2117049 R11: 1ffffffff2117048 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000000
FS:  000055557e7bb380(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6ade1501e8 CR3: 000000007ad40000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e
 bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326
 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline]
 __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 stack_map_get_build_id_offset+0x68d/0x9c0 kernel/bpf/stackmap.c:144
 __bpf_get_stack+0x44d/0x4f0 kernel/bpf/stackmap.c:452
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1880 [inline]
 bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1870
 bpf_prog_ec3b2eefa702d8d3+0x3a/0x3e
 bpf_dispatcher_nop_func include/linux/bpf.h:1001 [inline]
 __bpf_prog_run include/linux/filter.h:603 [inline]
 bpf_prog_run include/linux/filter.h:610 [inline]
 __bpf_trace_run kernel/trace/bpf_trace.c:2285 [inline]
 bpf_trace_run4+0x1f5/0x420 kernel/trace/bpf_trace.c:2326
 __traceiter_mmap_lock_acquire_returned+0x8b/0xe0 include/trace/events/mmap_lock.h:52
 trace_mmap_lock_acquire_returned include/trace/events/mmap_lock.h:52 [inline]
 __mmap_lock_do_trace_acquire_returned+0x29d/0x330 mm/mmap_lock.c:102
 __mmap_lock_trace_acquire_returned include/linux/mmap_lock.h:36 [inline]
 mmap_read_trylock include/linux/mmap_lock.h:137 [inline]
 stack_map_get_build_id_offset+0x68d/0x9c0 kernel/bpf/stackmap.c:144
 __bpf_get_stack+0x44d/0x4f0 kernel/bpf/stackmap.c:452
 ____bpf_get_stack_raw_tp kernel/trace/bpf_trace.c:1880 [inline]
 bpf_get_stack_raw_tp+0x175/0x1d0 kernel/trace/bpf_trace.c:1870
 </TASK>

Crashes (16):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/17 08:41 linux-6.1.y 58485ff1a74f cfebc887 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/06/05 17:48 linux-6.1.y 58485ff1a74f 6b6b5f21 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/02/24 14:09 linux-6.1.y 3a8358583626 d34966d1 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/02/01 13:27 linux-6.1.y 75cefdf153f5 aa47157c .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/01/08 03:33 linux-6.1.y 7dc732d24ff7 f3558dbf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/11/21 16:16 linux-6.1.y b67dc5c9ade9 4b25d554 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/11/20 23:39 linux-6.1.y b67dc5c9ade9 4fca1650 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/11/10 18:07 linux-6.1.y d7039b844a1c 6b856513 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/11/04 11:37 linux-6.1.y 7c15117f9468 f00eed24 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/10/24 03:50 linux-6.1.y 7ec6f9fa3d97 15fa2979 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/01/29 10:28 linux-6.1.y 75cefdf153f5 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2025/01/29 10:26 linux-6.1.y 75cefdf153f5 865ef71e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/10/01 17:03 linux-6.1.y aa4cd140bba5 ea2b66a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/09/01 11:47 linux-6.1.y 311d8503ef9f 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/09/01 11:06 linux-6.1.y 311d8503ef9f 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
2024/09/01 10:26 linux-6.1.y 311d8503ef9f 1eda0d14 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-perf WARNING in bpf_get_stack_raw_tp
* Struck through repros no longer work on HEAD.