Messages in this thread |  | | Date | Sat, 10 Dec 2022 21:17:39 -0800 | Subject | Re: [syzbot] kernel BUG in set_state_bits | From | syzbot <> |
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syzbot has found a reproducer for the following issue on:
HEAD commit: 296a7b7eb792 Merge tag 'for-linus' of git://git.armlinux.o.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=16a12ddb880000 kernel config: https://syzkaller.appspot.com/x/.config?x=4edf421741552bc3 dashboard link: https://syzkaller.appspot.com/bug?extid=b9d2e54d2301324657ed compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12ec2ab7880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14dc4613880000
Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c19ef17ae288/disk-296a7b7e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/68d26e4d2868/vmlinux-296a7b7e.xz kernel image: https://storage.googleapis.com/syzbot-assets/06aad301e7dd/bzImage-296a7b7e.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/5660348a6b33/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b9d2e54d2301324657ed@syzkaller.appspotmail.com
RBP: 00007ffe8b0af640 R08: 0000000000000001 R09: 00007f4094fa0034 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-io-tree.c:381! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3627 Comm: syz-executor376 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381 Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 0e cd fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f5 cc fb fd <0f> 0b 4c 89 ef e8 fb a6 48 fe e9 e6 fe ff ff 4c 89 ef e8 ee a6 48 RSP: 0018:ffffc90003baf860 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880790a2840 RCX: 0000000000000000 RDX: ffff888022638000 RSI: ffffffff8384510b RDI: 0000000000000005 RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000 R13: ffff8880790a28bc R14: 0000000000000fff R15: 0000000000000000 FS: 0000555555779300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff787f16e8 CR3: 0000000072e1e000 CR4: 0000000000350ee0 Call Trace: <TASK> insert_state_fast fs/btrfs/extent-io-tree.c:439 [inline] __set_extent_bit+0xd09/0x1430 fs/btrfs/extent-io-tree.c:997 set_record_extent_bits+0x5e/0x70 fs/btrfs/extent-io-tree.c:1601 qgroup_reserve_data+0x239/0xbc0 fs/btrfs/qgroup.c:3739 btrfs_qgroup_reserve_data+0x2f/0xd0 fs/btrfs/qgroup.c:3782 btrfs_check_data_free_space+0x111/0x280 fs/btrfs/delalloc-space.c:152 btrfs_buffered_write+0x4f1/0x1330 fs/btrfs/file.c:1559 btrfs_direct_write fs/btrfs/file.c:1899 [inline] btrfs_do_write_iter+0xece/0x1450 fs/btrfs/file.c:1980 call_write_iter include/linux/fs.h:2199 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9ed/0xdd0 fs/read_write.c:584 ksys_write+0x12b/0x250 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4094fe1cf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe8b0af638 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f4094fe1cf9 RDX: 0000000000000049 RSI: 0000000020000180 RDI: 0000000000000005 RBP: 00007ffe8b0af640 R08: 0000000000000001 R09: 00007f4094fa0034 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000007 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:set_state_bits.isra.0+0x17b/0x1c0 fs/btrfs/extent-io-tree.c:381 Code: 38 d0 7c 04 84 d2 75 31 44 8b 73 7c e8 0e cd fb fd 44 89 e0 44 09 f0 89 43 7c 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 f5 cc fb fd <0f> 0b 4c 89 ef e8 fb a6 48 fe e9 e6 fe ff ff 4c 89 ef e8 ee a6 48 RSP: 0018:ffffc90003baf860 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880790a2840 RCX: 0000000000000000 RDX: ffff888022638000 RSI: ffffffff8384510b RDI: 0000000000000005 RBP: 00000000fffffff4 R08: 0000000000000005 R09: 0000000000000000 R10: 00000000fffffff4 R11: 0000000000000000 R12: 0000000000001000 R13: ffff8880790a28bc R14: 0000000000000fff R15: 0000000000000000 FS: 0000555555779300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff787f16e8 CR3: 0000000072e1e000 CR4: 0000000000350ee0
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