syzbot


WARNING in tracing_buffers_mmap_close

Status: upstream: reported C repro on 2024/12/15 20:34
Subsystems: trace
[Documentation on labels]
Reported-by: syzbot+ddc001b92c083dbf2b97@syzkaller.appspotmail.com
First crash: 68d, last: 31d
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly trace report (Jan 2025) 0 (1) 2025/01/13 12:41
[syzbot] [trace?] WARNING in tracing_buffers_mmap_close 0 (1) 2024/12/15 20:34
Last patch testing requests (2)
Created Duration User Patch Repo Result
2025/02/01 06:45 21m retest repro upstream OK log
2025/02/01 06:45 19m retest repro upstream OK log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 12099 at kernel/trace/trace.c:8330 tracing_buffers_mmap_close kernel/trace/trace.c:8330 [inline]
WARNING: CPU: 1 PID: 12099 at kernel/trace/trace.c:8330 tracing_buffers_mmap_close+0xe3/0x130 kernel/trace/trace.c:8325
Modules linked in:
CPU: 1 UID: 0 PID: 12099 Comm: syz.3.1443 Not tainted 6.13.0-rc7-syzkaller-00160-gad26fc09dabf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:tracing_buffers_mmap_close kernel/trace/trace.c:8330 [inline]
RIP: 0010:tracing_buffers_mmap_close+0xe3/0x130 kernel/trace/trace.c:8325
Code: 75 46 48 8b 7b 08 e8 5c 89 ff ff 31 ff 89 c3 89 c6 e8 51 62 fb ff 85 db 75 0a 48 83 c4 08 5b e9 43 67 fb ff e8 3e 67 fb ff 90 <0f> 0b 90 48 83 c4 08 5b e9 30 67 fb ff e8 4b d8 5d 00 eb 87 e8 74
RSP: 0000:ffffc9000ce1f998 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000ffffffed RCX: ffffffff819de6ef
RDX: ffff88801d2f9e00 RSI: ffffffff819de702 RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffffffed R11: 0000000000000000 R12: ffffffff819de620
R13: 0000000000000001 R14: ffff888078678b18 R15: 0000000000000ff3
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f320000 CR3: 000000006293a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 vma_close mm/internal.h:147 [inline]
 remove_vma+0x91/0x1b0 mm/vma.c:380
 exit_mmap+0x4e2/0xb20 mm/mmap.c:1696
 __mmput+0x12a/0x4c0 kernel/fork.c:1348
 mmput+0x62/0x70 kernel/fork.c:1370
 exit_mm kernel/exit.c:570 [inline]
 do_exit+0x9ba/0x2d70 kernel/exit.c:925
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
 get_signal+0x2576/0x2610 kernel/signal.c:3017
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbde5785d29
Code: Unable to access opcode bytes at 0x7fbde5785cff.
RSP: 002b:00007fbde66180e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fbde5976168 RCX: 00007fbde5785d29
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbde5976168
RBP: 00007fbde5976160 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbde597616c
R13: 0000000000000000 R14: 00007ffdf3637290 R15: 00007ffdf3637378
 </TASK>

Crashes (20):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/01/18 06:44 upstream ad26fc09dabf f2cb035c .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2025/01/17 18:06 upstream 9bffa1ad25b8 bb91bdd4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2025/01/14 15:09 upstream c45323b7560e 0dce2409 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2025/01/04 17:00 upstream 63676eefb7a0 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/30 06:48 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/30 01:40 upstream 4099a71718b0 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/27 13:48 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/27 07:26 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/27 01:50 upstream d6ef8b40d075 d3ccff63 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/26 02:07 upstream 9b2ffa6148b1 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/24 03:32 upstream f07044dd0df0 444551c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/21 19:11 upstream 499551201b5f d7f584ee .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/18 03:17 upstream 59dbb9d81adf a0626d3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/17 23:35 upstream 59dbb9d81adf a0626d3a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/17 03:51 upstream f44d154d6e3d f93b2b55 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/16 05:22 upstream dccbe2047a5b 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/14 12:03 upstream a446e965a188 7cbfbb3a .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/12 06:48 upstream f92f4749861b 6f1b0fa8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/11 21:23 upstream f92f4749861b 6f1b0fa8 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
2024/12/11 20:26 upstream f92f4749861b 6f1b0fa8 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto WARNING in tracing_buffers_mmap_close
* Struck through repros no longer work on HEAD.