syzbot


kernel BUG in __set_extent_bit

Status: upstream: reported C repro on 2023/01/11 10:51
Labels: btrfs (incorrect?)
Reported-by: syzbot+89700d262ed1fb9f9351@syzkaller.appspotmail.com
First crash: 183d, last: 23d

Cause bisection: failed (error log, bisect log)
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [btrfs?] kernel BUG in __set_extent_bit 0 (1) 2023/01/11 10:51
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __set_extent_bit origin:upstream C 1 26d 26d 0/3 upstream: reported C repro on 2023/05/14 15:41
Fix bisection attempts (1)
Created Duration User Patch Repo Result
2023/03/25 12:20 44m bisect fix upstream job log (0) log

Sample crash report:
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007ffe189fa390 R14: 00007ffe189fa370 R15: 0000000000000002
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:379!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5038 Comm: syz-executor158 Not tainted 6.4.0-rc1-syzkaller-00177-gbb7c241fae62 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
RIP: 0010:set_state_bits fs/btrfs/extent-io-tree.c:379 [inline]
RIP: 0010:__set_extent_bit+0x18ab/0x1ac0 fs/btrfs/extent-io-tree.c:1042
Code: 34 fe e9 8a fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c b7 fd ff ff 4c 89 ff e8 7f 96 34 fe e9 aa fd ff ff e8 b5 c8 dc fd <0f> 0b e8 ae c8 dc fd 48 8b 44 24 10 48 83 c0 08 48 89 c3 48 c1 e8
RSP: 0018:ffffc90003bbf5d8 EFLAGS: 00010293
RAX: ffffffff83ae9e8b RBX: 00000000fffffff4 RCX: ffff8880223f1dc0
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 1ffff11003e8c15f R08: ffffffff83ae8cc1 R09: fffffbfff1a03943
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801f460afc
R13: ffff88801f460a80 R14: 0000000000000000 R15: 0000000000000fff
FS:  0000555556520300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f91c31140 CR3: 000000007c2f6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 set_record_extent_bits+0x56/0x90 fs/btrfs/extent-io-tree.c:1690
 qgroup_reserve_data+0x26e/0x8f0 fs/btrfs/qgroup.c:3786
 btrfs_qgroup_reserve_data+0x2e/0xc0 fs/btrfs/qgroup.c:3829
 btrfs_fallocate+0x11a9/0x1fa0 fs/btrfs/file.c:3147
 vfs_fallocate+0x54b/0x6b0 fs/open.c:324
 do_vfs_ioctl+0x22aa/0x2b10 fs/ioctl.c:849
 __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: 0033:0x7f0f91bb9ab9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe189fa328 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0f91bb9ab9
RDX: 0000000020000080 RSI: 0000000040305828 RDI: 0000000000000004
RBP: 00007ffe189fa350 R08: 0000000000000002 R09: 00007ffe189fa360
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 00007ffe189fa390 R14: 00007ffe189fa370 R15: 0000000000000002
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:set_state_bits fs/btrfs/extent-io-tree.c:379 [inline]
RIP: 0010:__set_extent_bit+0x18ab/0x1ac0 fs/btrfs/extent-io-tree.c:1042
Code: 34 fe e9 8a fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c b7 fd ff ff 4c 89 ff e8 7f 96 34 fe e9 aa fd ff ff e8 b5 c8 dc fd <0f> 0b e8 ae c8 dc fd 48 8b 44 24 10 48 83 c0 08 48 89 c3 48 c1 e8
RSP: 0018:ffffc90003bbf5d8 EFLAGS: 00010293
RAX: ffffffff83ae9e8b RBX: 00000000fffffff4 RCX: ffff8880223f1dc0
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: 1ffff11003e8c15f R08: ffffffff83ae8cc1 R09: fffffbfff1a03943
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801f460afc
R13: ffff88801f460a80 R14: 0000000000000000 R15: 0000000000000fff
FS:  0000555556520300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f91c31140 CR3: 000000007c2f6000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (19):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets Manager Title
2023/05/14 16:36 upstream bb7c241fae62 2b9ba477 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/01/11 16:34 upstream 7dd4b804e080 96166539 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/05/14 14:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b9ba477 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/01/11 10:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 358a161a6a9e 1dac8c7a .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/05/17 23:44 upstream 1b66c114d161 3bb7af1d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/04/15 03:40 upstream 95abc817ab3a ec410564 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/02/14 16:13 upstream f6feea56f66d 93ae7e0a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/02/03 21:40 upstream 66a87fff1a87 1b2f701a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/01/30 23:07 upstream 6d796c50f84c b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/01/30 17:48 upstream 6d796c50f84c b68fb8d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/05/14 14:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 14f8db1c0f9a 2b9ba477 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/04/18 01:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 327bf9bb94cf 436577a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/02/23 12:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a9b06ec42c0f 9e2ebb3c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/02/16 19:11 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 7338e3c4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/02/11 02:39 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 2d3827b3f393 95871dcc .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/02/06 12:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci ca72d58361ee be607b78 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/01/27 02:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 1dc22be1f91f 9dfcf09c .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/01/11 10:33 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 358a161a6a9e 1dac8c7a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2022/12/08 15:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a5541c0811a0 1034e5fa .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
* Struck through repros no longer work on HEAD.