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Sun, 15 Dec 2024 12:34:20 -0800 (PST) Date: Sun, 15 Dec 2024 12:34:20 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <675f3d4c.050a0220.37aaf.0104.GAE@google.com> Subject: [syzbot] [trace?] WARNING in tracing_buffers_mmap_close From: syzbot To: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f92f4749861b Merge tag 'clk-fixes-for-linus' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=15d92cdf980000 kernel config: https://syzkaller.appspot.com/x/.config?x=99a5586995ec03b2 dashboard link: https://syzkaller.appspot.com/bug?extid=ddc001b92c083dbf2b97 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12de78f8580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17d92cdf980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b85403132ddc/disk-f92f4749.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/20613d034287/vmlinux-f92f4749.xz kernel image: https://storage.googleapis.com/syzbot-assets/d1ea80bf7e4e/bzImage-f92f4749.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ddc001b92c083dbf2b97@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5829 at kernel/trace/trace.c:8464 tracing_buffers_mmap_close kernel/trace/trace.c:8464 [inline] WARNING: CPU: 1 PID: 5829 at kernel/trace/trace.c:8464 tracing_buffers_mmap_close+0xe3/0x130 kernel/trace/trace.c:8459 Modules linked in: CPU: 1 UID: 0 PID: 5829 Comm: syz-executor210 Not tainted 6.13.0-rc2-syzkaller-00031-gf92f4749861b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:tracing_buffers_mmap_close kernel/trace/trace.c:8464 [inline] RIP: 0010:tracing_buffers_mmap_close+0xe3/0x130 kernel/trace/trace.c:8459 Code: 75 46 48 8b 7b 08 e8 7c 85 ff ff 31 ff 89 c3 89 c6 e8 21 63 fb ff 85 db 75 0a 48 83 c4 08 5b e9 d3 60 fb ff e8 ce 60 fb ff 90 <0f> 0b 90 48 83 c4 08 5b e9 c0 60 fb ff e8 bb e7 5d 00 eb 87 e8 e4 RSP: 0018:ffffc90003857bb8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000ffffffed RCX: ffffffff819ddd0f RDX: ffff8880339f3c00 RSI: ffffffff819ddd22 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000ffffffed R11: 0000000000000000 R12: ffffffff819ddc40 R13: 0000000000000001 R14: ffff88807610a548 R15: 0000000000000ff9 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f44ec4e1110 CR3: 000000000db7e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vma_close mm/internal.h:147 [inline] remove_vma+0x91/0x1b0 mm/vma.c:380 exit_mmap+0x4e2/0xb20 mm/mmap.c:1692 __mmput+0x12a/0x4c0 kernel/fork.c:1353 mmput+0x62/0x70 kernel/fork.c:1375 exit_mm kernel/exit.c:570 [inline] do_exit+0x9bf/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 __do_sys_exit_group kernel/exit.c:1098 [inline] __se_sys_exit_group kernel/exit.c:1096 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096 x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f44ec464b49 Code: Unable to access opcode bytes at 0x7f44ec464b1f. RSP: 002b:00007ffc68920f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f44ec464b49 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f44ec4e02b0 R08: ffffffffffffffb8 R09: 0000000100000000 R10: 0000000000000012 R11: 0000000000000246 R12: 00007f44ec4e02b0 R13: 0000000000000000 R14: 00007f44ec4e0d00 R15: 00007f44ec436160 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup