syzbot

 sign-in | mailing list | source | docs
🐞 Open [71] 🐞 Fixed [21] 🐞 Invalid [270] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

kernel BUG at fs/ext4/ext4.h:LINE!

Status: upstream: reported C repro on 2020/10/08 13:59
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+c24787e72920213d5bcb@syzkaller.appspotmail.com
First crash: 1151d, last: 2d00h
▶ ▼ Similar bugs (14)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-15 kernel BUG in ext4_mb_find_by_goal C error done 19 161d 200d 0/2 auto-obsoleted due to no activity on 2023/09/19 22:50
linux-4.19 kernel BUG at fs/ext4/ext4.h:LINE! ext4 C error 13 295d 1113d 0/1 upstream: reported C repro on 2020/11/15 12:08
android-5-10 kernel BUG in ext4_mb_find_by_goal C error done 31 159d 200d 2/2 fixed on 2023/08/16 20:51
android-6-1 kernel BUG in ext4_mb_find_by_goal origin:lts C error done 78 43d 200d 0/2 upstream: reported C repro on 2023/05/17 18:41
upstream kernel BUG at fs/ext4/ext4.h:LINE! ext4 1 1067d 1063d 0/25 auto-closed as invalid on 2021/05/01 06:31
android-5-10 kernel BUG in ext4_free_blocks 3 720d 753d 0/2 auto-closed as invalid on 2022/03/13 09:34
linux-4.14 kernel BUG in ext4_mb_load_buddy_gfp ext4 C 6 274d 948d 0/1 upstream: reported C repro on 2021/04/29 16:39
android-5-10 kernel BUG in ext4_free_blocks (2) ext4 C error 25 216d 518d 2/2 fixed on 2023/05/04 14:51
upstream kernel BUG in ext4_get_group_info ext4 C error 237 203d 837d 24/25 fixed on 2023/07/01 16:05
android-5-15 kernel BUG in ext4_mb_load_buddy_gfp (2) origin:upstream missing-backport C error done 24 164d 211d 0/2 upstream: reported C repro on 2023/05/06 10:12
android-6-1 kernel BUG in ext4_mb_load_buddy_gfp C error done 42 44d 201d 0/2 upstream: reported C repro on 2023/05/17 04:29
android-5-15 kernel BUG in ext4_mb_load_buddy_gfp ext4 C error 9 254d 372d 2/2 fixed on 2023/03/28 12:29
android-5-10 kernel BUG in ext4_mb_load_buddy_gfp C error 28 22d 213d 0/2 upstream: reported C repro on 2023/05/04 23:52
android-5-15 kernel BUG in ext4_free_blocks ext4 1 316d 316d 0/2 auto-obsoleted due to no activity on 2023/04/30 03:35

Sample crash report:
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:2981!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 358 Comm: syz-executor380 Not tainted 5.4.242-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2981 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xf29/0xf40 fs/ext4/mballoc.c:1116
Code: ff e8 cb c4 c9 ff e9 0a f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 52 f3 ff ff e8 d1 c4 c9 ff e9 48 f3 ff ff e8 37 0a 9a ff <0f> 0b e8 30 0a 9a ff 0f 0b e8 29 0a 9a ff 0f 0b e8 22 0a 9a ff 0f
RSP: 0018:ffff8881dc0efa48 EFLAGS: 00010293
RAX: ffffffff81ca2089 RBX: 0000000000000001 RCX: ffff8881dc465e80
RDX: 0000000000000000 RSI: 0000000020457be0 RDI: 0000000000000001
RBP: ffff8881dc175000 R08: ffffffff81ca1232 R09: ffffed103d36145b
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103b82e87e
R13: dffffc0000000000 R14: 0000000020457be0 R15: ffff8881dc1743f0
FS:  0000555556a5e380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559c299deb28 CR3: 00000001e255a000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_discard_preallocations+0x603/0xb90 fs/ext4/mballoc.c:4101
 ext4_release_file+0x165/0x300 fs/ext4/file.c:98
 __fput+0x262/0x680 fs/file_table.c:281
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:859
 do_group_exit+0x138/0x300 kernel/exit.c:982
 __do_sys_exit_group kernel/exit.c:993 [inline]
 __se_sys_exit_group kernel/exit.c:991 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:991
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
Modules linked in:
---[ end trace 523a12d49d322c50 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:2981 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xf29/0xf40 fs/ext4/mballoc.c:1116
Code: ff e8 cb c4 c9 ff e9 0a f3 ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 52 f3 ff ff e8 d1 c4 c9 ff e9 48 f3 ff ff e8 37 0a 9a ff <0f> 0b e8 30 0a 9a ff 0f 0b e8 29 0a 9a ff 0f 0b e8 22 0a 9a ff 0f
RSP: 0018:ffff8881dc0efa48 EFLAGS: 00010293
RAX: ffffffff81ca2089 RBX: 0000000000000001 RCX: ffff8881dc465e80
RDX: 0000000000000000 RSI: 0000000020457be0 RDI: 0000000000000001
RBP: ffff8881dc175000 R08: ffffffff81ca1232 R09: ffffed103d36145b
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1103b82e87e
R13: dffffc0000000000 R14: 0000000020457be0 R15: ffff8881dc1743f0
FS:  0000555556a5e380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559c299deb28 CR3: 00000001e255a000 CR4: 00000000003406a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (148):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/07/14 04:27 android12-5.4 6d5c2c1877e5 55eda22f .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/06/25 05:43 android12-5.4 f5af01b60cfa 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/06/15 06:21 android12-5.4 39a9b92e9828 76decb82 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/05/17 18:48 android12-5.4 f423d52eea72 eaac4681 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/05/05 01:07 android12-5.4 cf4e000017b8 518a39a6 .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/03/20 01:30 android12-5.4 f4e4be09c27c 7939252e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/03/19 02:20 android12-5.4 f4e4be09c27c 7939252e .config strace log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/03/15 05:12 android12-5.4 f4e4be09c27c 0d5c4377 .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2022/10/02 16:47 android12-5.4 3ee2a37108c8 feb56351 .config strace log report syz C [disk image] [vmlinux] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2022/07/04 02:33 android12-5.4 148e4ba7f4fc 1434eec0 .config strace log report syz C ci2-android-5-4-kasan kernel BUG in ext4_free_blocks
2021/03/27 06:23 android12-5.4 7af03784d889 a8529b82 .config console log report syz C ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/10/03 13:19 android12-5.4 5f1cbd78af59 65faba36 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/09 21:22 android12-5.4 50533a8b511b 6654cf89 .config console log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/03/30 11:52 android12-5.4 da100c5e0cf5 f325deb0 .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/02/02 08:20 android12-5.4 6a5ec6cea0cd 9a6f477c .config strace log report syz [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2021/08/21 13:25 android12-5.4 3ce13296e72d b599f2fc .config console log report syz ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2021/01/20 11:25 android12-5.4 e4139b2a81bd d4f4eca5 .config console log report syz ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/12/02 07:18 android12-5.4 891e39829ab7 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/12/01 17:11 android12-5.4 891e39829ab7 f819d6f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/28 05:51 android12-5.4 2ac128c04e33 7ec6c044 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/25 22:50 android12-5.4 2ac128c04e33 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/24 03:02 android12-5.4 2ac128c04e33 5b429f39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/22 23:13 android12-5.4 2ac128c04e33 03e12510 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/19 07:13 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/18 20:19 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/18 07:28 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/17 22:01 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/16 12:36 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/15 01:08 android12-5.4 2ac128c04e33 cb976f63 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/09 16:28 android12-5.4 2ac128c04e33 56230772 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/11/09 07:20 android12-5.4 2ac128c04e33 4862372a .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/11/05 16:03 android12-5.4 2ac128c04e33 500bfdc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/11/02 08:08 android12-5.4 2ac128c04e33 69904c9f .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/30 20:11 android12-5.4 2b7d58539d7c b5729d82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/30 12:52 android12-5.4 65fc90b61bc7 b5729d82 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/30 00:16 android12-5.4 65fc90b61bc7 3c418d72 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/29 08:57 android12-5.4 65fc90b61bc7 3c418d72 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/27 07:18 android12-5.4 65fc90b61bc7 bf285f0c .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/25 05:22 android12-5.4 9e316e5d734e 17e6d526 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/17 01:02 android12-5.4 5f1cbd78af59 342b9c55 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/11 02:25 android12-5.4 5f1cbd78af59 83165b57 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/08 09:31 android12-5.4 5f1cbd78af59 5e837c76 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/05 06:05 android12-5.4 5f1cbd78af59 b7d7ff54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/04 01:46 android12-5.4 5f1cbd78af59 65faba36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/03 20:48 android12-5.4 5f1cbd78af59 65faba36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/03 11:32 android12-5.4 5f1cbd78af59 65faba36 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/02 23:26 android12-5.4 5f1cbd78af59 50b20e75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/10/02 21:12 android12-5.4 5f1cbd78af59 50b20e75 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/27 19:10 android12-5.4 a1b9dbe5628a 2895a507 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/24 11:20 android12-5.4 19cff29fe49c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/20 10:34 android12-5.4 19cff29fe49c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/16 10:43 android12-5.4 19cff29fe49c 0b6a67ac .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/10 13:22 android12-5.4 50533a8b511b 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/10 08:34 android12-5.4 50533a8b511b 6654cf89 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/07 15:53 android12-5.4 50533a8b511b 72324844 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/09/01 18:05 android12-5.4 c83e2462239e 696ea0d2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/23 11:21 android12-5.4 a14f43f0b97d b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/22 21:28 android12-5.4 a14f43f0b97d b81ca3f6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_load_buddy_gfp
2023/08/15 03:02 android12-5.4 fed9191809bc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/15 01:54 android12-5.4 fed9191809bc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/12 22:53 android12-5.4 fed9191809bc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/11 19:42 android12-5.4 fed9191809bc 39990d51 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/07 12:54 android12-5.4 fed9191809bc dda824c4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/08/06 20:37 android12-5.4 fed9191809bc 4ffcc9ef .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_mb_find_by_goal
2023/02/05 08:56 android12-5.4 6a5ec6cea0cd be607b78 .config console log report info [disk image] [vmlinux] [kernel image] ci2-android-5-4-kasan kernel BUG in ext4_free_blocks
2020/10/08 13:58 android12-5.4 54d2c66faf42 92390980 .config console log report info ci2-android-5-4-kasan
* Struck through repros no longer work on HEAD.