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kernel BUG in __set_extent_bit

Status: auto-obsoleted due to no activity on 2025/09/18 13:57
Subsystems: btrfs
[Documentation on labels]
Reported-by: syzbot+89700d262ed1fb9f9351@syzkaller.appspotmail.com
First crash: 1057d, last: 464d
Cause bisection: failed (error log, bisect log)
  
Fix bisection: the issue occurs on the latest tested release (bisect log)
  
▶ ▼ Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [btrfs?] kernel BUG in __set_extent_bit 1 (2) 2024/05/16 15:15
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.1 kernel BUG in __set_extent_bit origin:upstream -1 C error 6 186d 900d 0/3 upstream: reported C repro on 2023/05/14 15:41
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/09/18 13:03 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/09/18 13:03 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/09/18 00:57 26m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2025/09/07 10:56 20m retest repro upstream OK log
2025/07/30 00:24 3h25m retest repro upstream OK log
2025/07/10 12:03 17m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/07/10 12:03 17m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/07/09 23:53 21m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/06/29 04:04 20m retest repro upstream report log
2025/05/20 11:24 16m retest repro upstream report log
▶ ▼ Fix bisection attempts (3)
Created Duration User Patch Repo Result
2024/04/11 22:37 3h14m bisect fix upstream OK (0) job log
2023/08/19 02:25 3h04m bisect fix upstream OK (0) job log log
2023/03/25 12:20 44m bisect fix upstream OK (0) job log log
▶ ▼ Cause bisection attempts (2)
Created Duration User Patch Repo Result
2023/08/04 03:51 12h01m bisect upstream error job log
2023/01/11 22:59 8h11m bisect upstream error job log
marked invalid by nogikh@google.com

Sample crash report:
RAX: ffffffffffffffda RBX: 00007ffd4055bb50 RCX: 00007f982b3cb329
RDX: 0000000020000000 RSI: 0000000040305839 RDI: 0000000000000005
RBP: 0000000000000002 R08: 00007ffd4055b8c6 R09: 00007ffd4055bb70
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd4055bb4c
R13: 000000000000000f R14: 431bde82d7b634db R15: 00007ffd4055bb90
 </TASK>
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent-io-tree.c:379!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5292 Comm: syz-executor148 Not tainted 6.5.0-rc1-syzkaller-00033-geb26cbb1a754 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:set_state_bits fs/btrfs/extent-io-tree.c:379 [inline]
RIP: 0010:__set_extent_bit+0x188d/0x1b00 fs/btrfs/extent-io-tree.c:1057
Code: 33 fe e9 db fc ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ff fd ff ff 4c 89 e7 e8 9d 22 33 fe e9 f2 fd ff ff e8 a3 6a da fd <0f> 0b e8 9c 6a da fd 48 8b 44 24 18 48 83 c0 08 48 89 c3 48 c1 e8
RSP: 0018:ffffc90004f9f478 EFLAGS: 00010293
RAX: ffffffff83b1990d RBX: 00000000fffffff4 RCX: ffff888079df9dc0
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffff8880774de1fc R08: ffffffff83b18729 R09: 1ffffffff1a83f1e
R10: dffffc0000000000 R11: fffffbfff1a83f1f R12: ffff8880774de1fc
R13: ffff8880774de180 R14: 0000000000000000 R15: 1ffff1100ee9bc3f
FS:  0000555555590380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f982b448100 CR3: 0000000021db0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 set_record_extent_bits+0x51/0x90 fs/btrfs/extent-io-tree.c:1705
 qgroup_reserve_data+0x260/0x8e0 fs/btrfs/qgroup.c:3800
 btrfs_qgroup_reserve_data+0x2e/0xc0 fs/btrfs/qgroup.c:3843
 btrfs_zero_range+0xb94/0x1310 fs/btrfs/file.c:2984
 btrfs_fallocate+0xbb5/0x1f90 fs/btrfs/file.c:3101
 vfs_fallocate+0x551/0x6b0 fs/open.c:324
 do_vfs_ioctl+0x22cb/0x2b30 fs/ioctl.c:849
 __do_sys_ioctl fs/ioctl.c:868 [inline]
 __se_sys_ioctl+0x81/0x170 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: 0033:0x7f982b3cb329
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 18 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:00007ffd4055bb28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffd4055bb50 RCX: 00007f982b3cb329
RDX: 0000000020000000 RSI: 0000000040305839 RDI: 0000000000000005
RBP: 0000000000000002 R08: 00007ffd4055b8c6 R09: 00007ffd4055bb70
R10: 0000000000000002 R11: 0000000000000246 R12: 00007ffd4055bb4c
R13: 000000000000000f R14: 431bde82d7b634db R15: 00007ffd4055bb90
 </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+0x188d/0x1b00 fs/btrfs/extent-io-tree.c:1057
Code: 33 fe e9 db fc ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ff fd ff ff 4c 89 e7 e8 9d 22 33 fe e9 f2 fd ff ff e8 a3 6a da fd <0f> 0b e8 9c 6a da fd 48 8b 44 24 18 48 83 c0 08 48 89 c3 48 c1 e8
RSP: 0018:ffffc90004f9f478 EFLAGS: 00010293
RAX: ffffffff83b1990d RBX: 00000000fffffff4 RCX: ffff888079df9dc0
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffff8880774de1fc R08: ffffffff83b18729 R09: 1ffffffff1a83f1e
R10: dffffc0000000000 R11: fffffbfff1a83f1f R12: ffff8880774de1fc
R13: ffff8880774de180 R14: 0000000000000000 R15: 1ffff1100ee9bc3f
FS:  0000555555590380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f982b448100 CR3: 0000000021db0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (38):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/07/13 10:49 upstream eb26cbb1a754 86081196 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root 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
2024/02/19 04:24 upstream b401b621758e 578f7538 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/12/10 10:04 upstream b10a3ccaf6e3 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs kernel BUG in __set_extent_bit
2023/10/02 11:46 upstream 8a749fd1a872 8e26a358 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-kasan-gce-smack-root kernel BUG in __set_extent_bit
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
2023/06/18 14:58 upstream 1b29d271614a f3921d4d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs 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
2024/03/10 12:49 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 6ee49f2e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/03/09 08:15 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 707081b61156 96d142e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/02/06 15:56 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 41bccc98fb79 6404acf9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/01/27 17:48 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/01/27 14:08 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/01/26 06:10 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2024/01/11 21:03 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 0802e17d9aca 00f3cc59 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/12/27 22:06 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci aafe7ad77b91 fb427a07 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/12/11 13:12 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d46efae31672 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/12/10 17:31 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d46efae31672 28b24332 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/12/08 05:32 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d46efae31672 28b24332 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/11/02 09:51 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8de1e7afcc1c 69904c9f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 kernel BUG in __set_extent_bit
2023/09/08 00:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci fe4469582053 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 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
2023/06/13 14:34 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci d8b213732169 749afb64 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 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.