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AJvYcCUHmHx8dPoFdTEmhLongrEqk4SRQZ9kei7ZRpDZdS+AbLAzjqH0kRlJf/jdyUNuJJpRQUNVmy0=@vger.kernel.org X-Gm-Message-State: AOJu0Yz0aIL/8tqF4qXioELbbYVs9aPRKsmgczo/BxJiEDTFuEj5BdEj pPVLRxMCIaoWeueUt8zdCudiR5ngVQr/h4Tsn6bUm+kPMamAhOfrDc7dn9mOmD5XJIHlxkyQkWc fbnetIeul9xKcjHIbjoBPKcyRjpOSBOVv9o3tSuX4g/vzf6Xr1blD0u8= X-Google-Smtp-Source: AGHT+IFT7VkgtPhwGFobw/iHcC09MH/+ek0+r6QttV/iOtQWwxRcqQzC4xMBMHSFJGMTImzmhcAqPlSzi3jtWCqyJhPT25+115nr Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:14c6:b0:864:617a:13a1 with SMTP id ca18e2360f4ac-86747453d0bmr818286839f.14.1746698249561; Thu, 08 May 2025 02:57:29 -0700 (PDT) Date: Thu, 08 May 2025 02:57:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <681c8009.050a0220.654ca.0000.GAE@google.com> Subject: [syzbot] [perf?] WARNING in __perf_event_overflow (2) From: syzbot To: acme@kernel.org, adrian.hunter@intel.com, alexander.shishkin@linux.intel.com, irogers@google.com, jolsa@kernel.org, kan.liang@linux.intel.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, mark.rutland@arm.com, mingo@redhat.com, namhyung@kernel.org, netdev@vger.kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: f263336a41da selftests/bpf: Add btf dedup test covering mo.. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=16d3db68580000 kernel config: https://syzkaller.appspot.com/x/.config?x=a9a25b7a36123454 dashboard link: https://syzkaller.appspot.com/bug?extid=2524754f17993441bf66 compiler: Debian clang version 20.1.2 (++20250402124445+58df0ef89dd6-1~exp1~20250402004600.97), Debian LLD 20.1.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11d3db68580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8b191964c33b/disk-f263336a.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/fde84e52fec4/vmlinux-f263336a.xz kernel image: https://storage.googleapis.com/syzbot-assets/e2686ad850de/bzImage-f263336a.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2524754f17993441bf66@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6044 at kernel/events/core.c:10226 __perf_event_overflow+0xaf9/0xe10 kernel/events/core.c:10226 Modules linked in: CPU: 1 UID: 0 PID: 6044 Comm: syz.1.17 Not tainted 6.15.0-rc4-syzkaller-gf263336a41da #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/29/2025 RIP: 0010:__perf_event_overflow+0xaf9/0xe10 kernel/events/core.c:10226 Code: 89 3e 4c 8b 3c 24 e9 c3 fc ff ff e8 21 77 d0 ff 49 bd 00 00 00 00 00 fc ff df 4c 8b 74 24 28 e9 06 fe ff ff e8 08 77 d0 ff 90 <0f> 0b 90 e9 1b ff ff ff e8 fa 76 d0 ff 48 c7 c7 80 b3 73 8b e8 0e RSP: 0000:ffffc90002f179c0 EFLAGS: 00010293 RAX: ffffffff81ef47c8 RBX: ffff888011140c40 RCX: ffff88802fd43c00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90002f17ad0 R08: ffff888011140e7f R09: 1ffff110022281cf R10: dffffc0000000000 R11: ffffed10022281d0 R12: ffffc90002f17f58 R13: dffffc0000000000 R14: ffff888011140e78 R15: 0000000000000000 FS: 00007f2cfb8cd6c0(0000) GS:ffff8881261cc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2cfb8cd0e8 CR3: 0000000032960000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: perf_swevent_overflow kernel/events/core.c:10324 [inline] perf_swevent_event+0x2f4/0x5e0 kernel/events/core.c:-1 do_perf_sw_event kernel/events/core.c:10464 [inline] ___perf_sw_event+0x4a1/0x700 kernel/events/core.c:10491 __perf_sw_event+0xfa/0x1a0 kernel/events/core.c:10503 perf_sw_event include/linux/perf_event.h:1537 [inline] do_user_addr_fault+0x12e4/0x1390 arch/x86/mm/fault.c:1284 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f2cfa85eb1b Code: 00 74 24 80 3d d8 6b e8 00 00 0f b6 35 ce 6b e8 00 75 4c 80 3d c9 6b e8 00 00 75 43 40 84 f6 75 3e 66 0f 1f 44 00 00 48 89 ef 60 fa ff ff 8b 45 0c 85 c0 75 38 b9 40 42 0f 00 ba 81 00 00 00 RSP: 002b:00007f2cfb8cd0f0 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 00007f2cfabb5fa8 RCX: 00007f2cfa98e969 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f2cfabb5fa0 RBP: 00007f2cfabb5fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2cfabb5fac R13: 0000000000000000 R14: 00007ffe3a7ce340 R15: 00007ffe3a7ce428 --- 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