kernel BUG in mb_mark

Date	Name	Commit	Repro	Result
2025/03/24	lts (merge base)	0cbb5f65e52f	C	[report] kernel BUG in mb_mark_used
2025/03/24	upstream (ToT)	586de92313fc	C	[report] kernel BUG in mb_mark_used

Date

Name

Commit

Repro

Result

2025/03/24

lts (merge base)

0cbb5f65e52f

[report] kernel BUG in mb_mark_used

2025/03/24

upstream (ToT)

586de92313fc

[report] kernel BUG in mb_mark_used

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
android-5-15	kernel BUG in mb_mark_used origin:upstream	-1	C		error	4	33d	420d	0/2	upstream: reported C repro on 2025/03/16 17:45
android-5-10	kernel BUG in mb_mark_used	-1	C		error	1	116d	130d	0/2	upstream: reported C repro on 2025/12/31 19:52

Rank 🛈

android-5-15

kernel BUG in mb_mark_used origin:upstream

-1

error

33d

420d

0/2

upstream: reported C repro on 2025/03/16 17:45

android-5-10

kernel BUG in mb_mark_used

-1

error

116d

130d

0/2

upstream: reported C repro on 2025/12/31 19:52

Created	Duration	User	Patch	Repo	Result
2026/04/02 02:06	6m	retest repro		android14-6.1	report log

Created

Duration

User

Patch

Repo

Result

2026/04/02 02:06

retest repro

android14-6.1

report log


Created	Duration	User	Repo	Result
2026/01/22 01:24	0m	bisect fix	android14-6.1	error job log
2025/12/22 23:16	1h07m	bisect fix	android14-6.1	OK (0) job log log
2025/11/18 11:24	1h02m	bisect fix	android14-6.1	OK (0) job log log
2025/10/13 03:32	1h43m	bisect fix	android14-6.1	OK (0) job log log
2025/09/05 02:49	1h34m	bisect fix	android14-6.1	OK (0) job log log
2025/07/30 08:35	1h44m	bisect fix	android14-6.1	OK (0) job log log
2025/06/29 04:39	1h37m	bisect fix	android14-6.1	OK (0) job log log
2025/05/30 01:11	2h30m	bisect fix	android14-6.1	OK (0) job log log
2025/04/26 22:07	1h44m	bisect fix	android14-6.1	OK (0) job log log

loop2: detected capacity change from 0 to 1024 EXT4-fs: Ignoring removed nomblk_io_submit option EXT4-fs (loop2): mounted filesystem without journal. Quota mode: none. ------------[ cut here ]------------ kernel BUG at fs/ext4/mballoc.c:1957! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 376 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:mb_mark_used+0x1545/0x1560 fs/ext4/mballoc.c:1957 Code: 0f 0b e8 2e 26 81 ff 0f 0b e8 27 26 81 ff 0f 0b e8 20 26 81 ff 0f 0b e8 19 26 81 ff 0f 0b e8 12 26 81 ff 0f 0b e8 0b 26 81 ff <0f> 0b e8 04 26 81 ff 0f 0b e8 fd 25 81 ff 0f 0b 66 2e 0f 1f 84 00 RSP: 0018:ffffc900009b7588 EFLAGS: 00010293 RAX: ffffffff81f05045 RBX: 0000000080000000 RCX: ffff888114643cc0 RDX: 0000000000000000 RSI: ffffffff80000000 RDI: 0000000000002000 RBP: ffffc900009b7668 R08: ffff888115dae003 R09: 1ffff11022bb5c00 R10: dffffc0000000000 R11: ffffed1022bb5c01 R12: ffffffff80000000 R13: 0000000000002000 R14: ffffc900009b7730 R15: ffff888115dad000 FS: 00005555787fe500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001100d9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ext4_trim_extent fs/ext4/mballoc.c:6456 [inline] ext4_try_to_trim_range+0x5d4/0xfb0 fs/ext4/mballoc.c:6516 ext4_trim_all_free fs/ext4/mballoc.c:6578 [inline] ext4_trim_fs+0xbc8/0x1300 fs/ext4/mballoc.c:6669 __ext4_ioctl fs/ext4/ioctl.c:1494 [inline] ext4_ioctl+0x26f9/0x3ee0 fs/ext4/ioctl.c:1617 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0x12f/0x1b0 fs/ioctl.c:856 __x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:856 x64_sys_call+0x58b/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7efe8ff9cdd9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff7115e578 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007efe90215fa0 RCX: 00007efe8ff9cdd9 RDX: 0000200000000080 RSI: 00000000c0185879 RDI: 0000000000000004 RBP: 00007efe90032d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007efe90215fac R14: 00007efe90215fa0 R15: 00007efe90215fa0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:mb_mark_used+0x1545/0x1560 fs/ext4/mballoc.c:1957 Code: 0f 0b e8 2e 26 81 ff 0f 0b e8 27 26 81 ff 0f 0b e8 20 26 81 ff 0f 0b e8 19 26 81 ff 0f 0b e8 12 26 81 ff 0f 0b e8 0b 26 81 ff <0f> 0b e8 04 26 81 ff 0f 0b e8 fd 25 81 ff 0f 0b 66 2e 0f 1f 84 00 RSP: 0018:ffffc900009b7588 EFLAGS: 00010293 RAX: ffffffff81f05045 RBX: 0000000080000000 RCX: ffff888114643cc0 RDX: 0000000000000000 RSI: ffffffff80000000 RDI: 0000000000002000 RBP: ffffc900009b7668 R08: ffff888115dae003 R09: 1ffff11022bb5c00 R10: dffffc0000000000 R11: ffffed1022bb5c01 R12: ffffffff80000000 R13: 0000000000002000 R14: ffffc900009b7730 R15: ffff888115dad000 FS: 00005555787fe500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000001100d9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/05/01 09:46	android14-6.1	1e4e23ff0f90	753c55b9	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (clean fs)]	ci2-android-6-1	kernel BUG in mb_mark_used
2025/03/09 09:52	android14-6.1	44db4837f75e	163f510d	.config	strace log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro #1 (clean fs)] [mounted in repro #2 (clean fs)] [mounted in repro #3 (clean fs)]	ci2-android-6-1	kernel BUG in mb_mark_used

Crashes (2):

Assets (help?)