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kernel panic: EXT4-fs (device loop0): panic forced after error

Status: closed as invalid on 2018/05/07 15:46
First crash: 2172d, last: 2172d
Similar bugs (10)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel panic: EXT4-fs (device loop0): panic forced after error (2) ext4 C error 2 477d 474d 0/26 closed as invalid on 2023/01/03 13:41
linux-6.1 kernel panic: EXT4-fs (device loop0): panic forced after error origin:upstream C 1 17d 147d 0/3 upstream: reported C repro on 2023/11/20 19:54
upstream kernel panic: EXT4-fs (device loop0): panic forced after error ext4 C 1 2172d 2171d 0/26 closed as invalid on 2018/06/12 14:01
upstream kernel panic: EXT4-fs (device loop0): panic forced after error (3) ext4 C inconclusive 1 246d 242d 0/26 closed as invalid on 2023/08/17 14:21
android-6-1 kernel panic: EXT4-fs (device loop0): panic forced after error origin:upstream C error 1 33d 241d 0/2 upstream: reported C repro on 2023/08/18 16:47
linux-5.15 kernel panic: EXT4-fs (device loop0): panic forced after error origin:upstream C error 1 40d 40d 0/3 upstream: reported C repro on 2024/03/06 01:35
android-5-10 kernel panic: EXT4-fs (device loop0): panic forced after error ext4 C 1 478d 478d 0/2 closed as invalid on 2022/12/26 14:10
android-54 kernel panic: EXT4-fs (device loop0): panic forced after error C 1 18d 246d 0/2 upstream: reported C repro on 2023/08/13 09:27
android-5-15 kernel panic: EXT4-fs (device loop0): panic forced after error ext4 C error 1 478d 478d 0/2 closed as invalid on 2022/12/26 14:01
android-5-10 kernel panic: EXT4-fs (device loop0): panic forced after error (2) C 1 9d01h 247d 0/2 upstream: reported C repro on 2023/08/12 21:25

Sample crash report:
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
EXT4-fs error (device loop0): ext4_iget:4557: inode #2: comm syz-executor495: root inode unallocated
Kernel panic - not syncing: EXT4-fs (device loop0): panic forced after error

CPU: 0 PID: 3799 Comm: syz-executor495 Not tainted 4.9.98-g63a812b #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801b5747590 ffffffff81eb0e89 ffffffff83cf6400 00000000ffffffff
 0000000000000000 0000000000000000 ffff8801b6f98718 ffff8801b5747650
 ffffffff8141f835 0000000041b58ab3 ffffffff843b86e8 ffffffff8141f676
Call Trace:
 [<ffffffff81eb0e89>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb0e89>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8141f835>] panic+0x1bf/0x3bc kernel/panic.c:179
 [<ffffffff81cb8ace>] ext4_handle_error.part.116.cold.124+0x1e/0x1e fs/ext4/super.c:426
 [<ffffffff817c3051>] ext4_handle_error fs/ext4/super.c:403 [inline]
 [<ffffffff817c3051>] __ext4_error_inode+0x251/0x350 fs/ext4/super.c:481
 [<ffffffff81744a0b>] ext4_iget+0xa5b/0x3600 fs/ext4/inode.c:4557
 [<ffffffff817d383e>] ext4_fill_super+0x659e/0xb260 fs/ext4/super.c:4088
 [<ffffffff81579c17>] mount_bdev+0x2c7/0x390 fs/super.c:1100
 [<ffffffff817a94c4>] ext4_mount+0x34/0x40 fs/ext4/super.c:5558
 [<ffffffff8157b99c>] mount_fs+0x28c/0x370 fs/super.c:1206
 [<ffffffff815daf41>] vfs_kern_mount.part.29+0xd1/0x3d0 fs/namespace.c:991
 [<ffffffff815e2869>] vfs_kern_mount fs/namespace.c:973 [inline]
 [<ffffffff815e2869>] do_new_mount fs/namespace.c:2513 [inline]
 [<ffffffff815e2869>] do_mount+0x3c9/0x2740 fs/namespace.c:2835
 [<ffffffff815e55be>] SYSC_mount fs/namespace.c:3051 [inline]
 [<ffffffff815e55be>] SyS_mount+0xfe/0x110 fs/namespace.c:3028
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839f4653>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Dumping ftrace buffer:
   (ftrace buffer empty)
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2018/05/05 21:20 https://android.googlesource.com/kernel/common android-4.9 63a812bb84e4 6a0382b5 .config console log report syz C ci-android-49-kasan-gce-root
2018/05/05 20:46 https://android.googlesource.com/kernel/common android-4.9 63a812bb84e4 6a0382b5 .config console log report syz ci-android-49-kasan-gce-root
* Struck through repros no longer work on HEAD.