From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BE8E2348465 for ; Wed, 14 Oct 2026 08:37:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791967057; cv=none; b=n1HOkGJucPU5p1wdsmDTdqNpY7d7QPldOYpHdmgAcl17W0RPeASYnt0duSZ7fcezSc+WOez0A3inPDRxrmUsdJ2Ozb3FHDLq0e0NeAoNEGj34jv0pdP/MbNSrgK8OOnVOVfbYnJhyAOx5SF0gIkqphsqep2hRXAmvS7bn7KGrzs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791967057; c=relaxed/simple; bh=Mks9C4jhJpesQrrWhQu4fO5sEuKlhmQaCEdEM2kf0yw=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=noTgR4caaBRj7LCLIdxu3OZwMKuixHFVVugJuMxAjTUCCiV+uRFdAMZ/Qpe3x+QQrv0uaxC5iuOuEyCnmwfQzsy89zoITuADtSkSzqpr2/W8BHutlVUtsHMGFvpB6V1f1qatkfS2eu2zWly+pG0tBmM4eXoOJ1B2UxrJ7tC5C/s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.197 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f197.google.com with SMTP id 5614622812f47-4b28dafb8e1so6479231b6e.2 for ; Wed, 14 Oct 2026 01:37:35 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791967054; x=1792571854; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=CPlslS4763Ppg94O9SfZOlLgJkMA8tc2UJYAoGMUcXA=; b=K4nKk/aOdYs5TfVwAXuQ1bfDjbRP0P0uJI8c4fbZyvO0jkJFfUJwIftlgE7ql20lBN HKZdJuvQ5zKApFPtmJvuidlVKXUMLAPgUzvDVtCMMxijHUXV4sx4GdTtZzbfXZi1rBx6 Tce6OPjgv099Y08T/pe8u6UBMJxzonW0cHh6oS8YPdZ+ig5L7hWccayRzeWAfsRFt0X1 yBb79ZPEm1v8usUm7N3ezeHc0UxGOwbvIrhArF+5YsHsCalQyESASDpq0BCFEL62VC4C oDK4qvtl4JBDWtCy1pebRm0xEngn31PGLWsPfeNXXlTCinHdvaFheiqlpEARgHclTC96 ydSQ== X-Forwarded-Encrypted: i=1; AKwUvByGaKzEWgMzmffIqzu79ssMZzWrMiG0Bnoyc1IItnK4NnIIBYlA8hnuhm5YfvLKzbxHLhY=@vger.kernel.org X-Gm-Message-State: AFq9FYJi7Y3bgIzjmoR/wcXzh6owDZ8V/sZdEiXdyU58K3b38uzqykU7 sABs2Copag+yKW4/HscbfvfkVjBWqch+KKMnb/jpxBosCqcoxSHxQmHap0hcNMxALnepQ+YB5C4 oBMinmeSfbkctiVG/B7cPICP1KLHF/ueLBRMwaVhHndQELJpCQCwZLRbtDO4= Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:308f:b0:4b9:a8ac:480 with SMTP id 5614622812f47-50c50f29888mr15942933b6e.30.1791967054743; Wed, 14 Oct 2026 01:37:34 -0700 (PDT) Date: Wed, 14 Oct 2026 01:37:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6acf3f4e.38256f13.2006af.00d6.GAE@google.com> Subject: [syzbot] [bpf?] general protection fault in bpf_inode_storage_free From: syzbot To: andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, emil@etsalapatis.com, ihor.solodrai@linux.dev, jolsa@kernel.org, linux-kernel@vger.kernel.org, martin.lau@linux.dev, memxor@gmail.com, song@kernel.org, syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: becb95e45ef0 Add linux-next specific files for 20261009 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=116cc1d1580000 kernel config: https://syzkaller.appspot.com/x/.config?x=90dad226b9b89d98 dashboard link: https://syzkaller.appspot.com/bug?extid=b547ffac63b636628299 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=132f268e580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1622f435580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c2788d0b538b/disk-becb95e4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/13231cbc415a/vmlinux-becb95e4.xz kernel image: https://storage.googleapis.com/syzbot-assets/e6abf775ab73/bzImage-becb95e4.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/ac2293f9c36f/mount_0.gz fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=166cc1d1580000) IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b547ffac63b636628299@syzkaller.appspotmail.com ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 3 ERROR: (device loop0): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 5 Oops: general protection fault, probably for non-canonical address 0xdffffc018ef8da81: 0000 [#1] SMP KASAN PTI KASAN: probably user-memory-access in range [0x0000000c77c6d408-0x0000000c77c6d40f] CPU: 1 UID: 0 PID: 5630 Comm: syz-executor383 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:bpf_inode_storage_free+0x1f4/0x5c0 kernel/bpf/bpf_inode_storage.c:67 Code: d2 c1 d2 ff c6 05 75 65 6d 0f 01 48 c7 c7 60 3f 17 8c be 53 03 00 00 48 c7 c2 a0 3f 17 8c e8 c3 21 ae ff 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 8d b0 45 00 4d 8b 36 e8 d5 24 f9 RSP: 0018:ffffc90003a6f8f0 EFLAGS: 00010206 RAX: 000000018ef8da81 RBX: ffff888075cd04c0 RCX: ffff888075cd0000 RDX: 0000000000000000 RSI: ffffffff8c6e2360 RDI: ffffffff8c6e2320 RBP: 0000000000000001 R08: ffffffff81f5d602 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f42939 R12: dffffc0000000000 R13: 1ffff1100eb9a098 R14: 0000000c77c6d408 R15: ffffffff81f5d602 FS: 0000000000000000(0000) GS:ffff888123bad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f86a058ebbc CR3: 000000000fb48000 CR4: 00000000003526f0 Call Trace: security_inode_free+0xdc/0x180 security/security.c:1289 __destroy_inode+0x2a1/0x630 fs/inode.c:363 destroy_inode fs/inode.c:386 [inline] evict+0x8d4/0xb50 fs/inode.c:847 dispose_list fs/inode.c:865 [inline] evict_inodes+0x844/0x8c0 fs/inode.c:918 generic_shutdown_super+0xaa/0x2d0 fs/super.c:737 kill_block_super+0x44/0xa0 fs/super.c:1914 deactivate_locked_super+0xbe/0x110 fs/super.c:586 cleanup_mnt+0x204/0x2a0 fs/namespace.c:1392 task_work_run+0x1d9/0x260 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x705/0x2380 kernel/exit.c:980 do_group_exit+0x22d/0x2f0 kernel/exit.c:1123 __do_sys_exit_group kernel/exit.c:1134 [inline] __se_sys_exit_group kernel/exit.c:1132 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1132 x64_sys_call+0x18c6/0x18d0 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f86a052dac5 Code: Unable to access opcode bytes at 0x7f86a052da9b. RSP: 002b:00007ffcb03fbdc8 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f86a052dac5 RDX: 00000000000000e7 RSI: ffffffffffffffd8 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000ffffffff R10: 0000000000000100 R11: 0000000000000206 R12: 0000000000000001 R13: 00007f86a05c6110 R14: 00007f86a05c86a8 R15: 00007f86a05c86c0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bpf_inode_storage_free+0x1f4/0x5c0 kernel/bpf/bpf_inode_storage.c:67 Code: d2 c1 d2 ff c6 05 75 65 6d 0f 01 48 c7 c7 60 3f 17 8c be 53 03 00 00 48 c7 c2 a0 3f 17 8c e8 c3 21 ae ff 4c 89 f0 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 f7 e8 8d b0 45 00 4d 8b 36 e8 d5 24 f9 RSP: 0018:ffffc90003a6f8f0 EFLAGS: 00010206 RAX: 000000018ef8da81 RBX: ffff888075cd04c0 RCX: ffff888075cd0000 RDX: 0000000000000000 RSI: ffffffff8c6e2360 RDI: ffffffff8c6e2320 RBP: 0000000000000001 R08: ffffffff81f5d602 R09: 0000000000000000 R10: dffffc0000000000 R11: fffffbfff1f42939 R12: dffffc0000000000 R13: 1ffff1100eb9a098 R14: 0000000c77c6d408 R15: ffffffff81f5d602 FS: 0000000000000000(0000) GS:ffff888123bad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f86a058ebbc CR3: 000000000fb48000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: d2 c1 rol %cl,%cl 2: d2 ff sar %cl,%bh 4: c6 05 75 65 6d 0f 01 movb $0x1,0xf6d6575(%rip) # 0xf6d6580 b: 48 c7 c7 60 3f 17 8c mov $0xffffffff8c173f60,%rdi 12: be 53 03 00 00 mov $0x353,%esi 17: 48 c7 c2 a0 3f 17 8c mov $0xffffffff8c173fa0,%rdx 1e: e8 c3 21 ae ff call 0xffae21e6 23: 4c 89 f0 mov %r14,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 f7 mov %r14,%rdi 34: e8 8d b0 45 00 call 0x45b0c6 39: 4d 8b 36 mov (%r14),%r14 3c: e8 .byte 0xe8 3d: d5 24 f9 {rex2 0x24} stc --- 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