Hello, syzbot found the following issue on: HEAD commit: 40f71e7cd3c6 Merge tag 'net-6.4-rc7' of git://git.kernel.o.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=166d2acf280000 kernel config: https://syzkaller.appspot.com/x/.config?x=7ff8f87c7ab0e04e dashboard link: https://syzkaller.appspot.com/bug?extid=9992306148b06272f3bb compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c65e87280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1094a78b280000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/2dc89d5fee38/disk-40f71e7c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0ced5a475218/vmlinux-40f71e7c.xz kernel image: https://storage.googleapis.com/syzbot-assets/d543a4f69684/bzImage-40f71e7c.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/7cde8d2312ae/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+9992306148b06272f3bb@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5351 at fs/btrfs/extent_io.c:2824 emit_fiemap_extent+0xee/0x410 Modules linked in: CPU: 1 PID: 5351 Comm: syz-executor148 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:emit_fiemap_extent+0xee/0x410 fs/btrfs/extent_io.c:2824 Code: d8 24 52 fe 49 8b 45 00 48 89 04 24 48 8b 4c 24 28 48 8d 2c 08 48 89 ef 4c 89 f6 e8 3c 4f fa fd 4c 39 f5 76 1b e8 22 4d fa fd <0f> 0b bd ea ff ff ff e9 25 02 00 00 e8 11 4d fa fd e9 97 01 00 00 RSP: 0018:ffffc90004b7f4a8 EFLAGS: 00010293 RAX: ffffffff8391327e RBX: ffffc90004b7f8e0 RCX: ffff88807658bb80 RDX: 0000000000000000 RSI: 00000000000b3000 RDI: 0000000000101000 RBP: 0000000000101000 R08: ffffffff83913274 R09: 0000000000000800 R10: ffffc90004b7f478 R11: dffffc0000000001 R12: 1ffff9200096ff1f R13: ffffc90004b7f8f0 R14: 00000000000b3000 R15: 1ffff9200096ff1e FS: 00007f2063529700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055dbf02d3668 CR3: 0000000079ce7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> fiemap_process_hole+0xa27/0xaf0 fs/btrfs/extent_io.c:3104 extent_fiemap+0xe7d/0x1fc0 btrfs_fiemap+0x178/0x1e0 fs/btrfs/inode.c:7802 ioctl_fiemap fs/ioctl.c:219 [inline] do_vfs_ioctl+0x19ba/0x2b10 fs/ioctl.c:810 __do_sys_ioctl fs/ioctl.c:868 [inline] __se_sys_ioctl+0x81/0x160 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f206a99eae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f20635292f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f206aa287f0 RCX: 00007f206a99eae9 RDX: 00000000200012c0 RSI: 00000000c020660b RDI: 0000000000000004 RBP: 00007f206a9f5290 R08: 00007f2063529700 R09: 0000000000000000 R10: 00007f2063529700 R11: 0000000000000246 R12: 5f65646f6e696f6e R13: 0032656c69662f2e R14: 8000000000000001 R15: 00007f206aa287f8 </TASK> --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, 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 change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
