EXT4-fs error (device loop1): __ext4_fill_super:5512: inode #2: comm syz-executor.1: iget: special inode unallocated
loop7: detected capacity change from 0 to 512
EXT4-fs (loop1): get root inode failed
------------[ cut here ]------------
WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#1: syz-executor.1/10742
Modules linked in:
CPU: 1 UID: 0 PID: 10742 Comm: syz-executor.1 Not tainted 6.18.0-rc2-next-20251023 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:get_data+0x364/0x400
Code: e8 83 e0 07 83 c0 03 38 d0 0f 8c be fe ff ff 84 d2 0f 84 b6 fe ff ff 48 89 ef e8 07 89 5b 00 e9 a9 fe ff ff e8 cd b7 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 bc b7 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff888048d0f258 EFLAGS: 00010212
RAX: 0000000000007aa2 RBX: ffff888048d0f370 RCX: ffffc900007e5000
RDX: 0000000000040000 RSI: ffffffff815566f3 RDI: 0000000000000006
RBP: ffff888048d0f338 R08: 0000000000000cb1 R09: 0000010c8048cf89
R10: 0000000000000000 R11: 000029f66200001d R12: ffffffff85d30690
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007fa37d622700(0000) GS:ffff8880e54f6000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91ea88ffe8 CR3: 000000001eea2000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
_prb_read_valid+0x2f3/0x830
prb_read_valid+0x78/0xa0
printk_get_next_message+0x10b/0x570
console_flush_all+0x630/0xb70
console_unlock+0xc2/0x1f0
vprintk_emit+0x3f6/0x630
_printk+0xbe/0xf0
__ext4_msg+0x17e/0x240
ext4_fill_super+0x7850/0xb910
get_tree_bdev_flags+0x38a/0x620
vfs_get_tree+0x93/0x340
path_mount+0x720/0x2130
__x64_sys_mount+0x293/0x310
do_syscall_64+0xbf/0x390
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa3800ae04a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa37d621fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007fa3800ae04a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fa37d622000
RBP: 00007fa37d622040 R08: 00007fa37d622040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fa37d622000 R15: 0000000020013c00
irq event stamp: 2025
hardirqs last enabled at (2031): [] vprintk_emit+0x5f0/0x630
hardirqs last disabled at (2036): [] vprintk_emit+0x581/0x630
softirqs last enabled at (1584): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1573): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs (loop7): corrupt root inode, run e2fsck
EXT4-fs (loop7): mount failed
loop6: detected capacity change from 0 to 512
EXT4-fs error (device loop6): ext4_quota_enable:7136: inode #4: comm syz-executor.6: iget: special inode unallocated
EXT4-fs error (device loop6): ext4_quota_enable:7138: comm syz-executor.6: Bad quota inode: 4, type: 1
EXT4-fs warning (device loop6): ext4_enable_quotas:7176: Failed to enable quota tracking (type=1, err=-117, ino=4). Please run e2fsck to fix.
EXT4-fs (loop6): mount failed
loop1: detected capacity change from 0 to 512
loop2: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 512
loop7: detected capacity change from 0 to 512
loop3: detected capacity change from 0 to 512
EXT4-fs error (device loop3): __ext4_fill_super:5512: inode #2: comm syz-executor.3: iget: special inode unallocated
EXT4-fs (loop3): get root inode failed
EXT4-fs (loop3): mount failed
EXT4-fs error (device loop2): __ext4_fill_super:5512: inode #2: comm syz-executor.2: iget: special inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs error (device loop1): __ext4_fill_super:5512: inode #2: comm syz-executor.1: iget: special inode unallocated
EXT4-fs error (device loop7): __ext4_fill_super:5512: inode #2: comm syz-executor.7: iget: special inode unallocated
EXT4-fs (loop7): get root inode failed
EXT4-fs (loop7): mount failed
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
loop3: detected capacity change from 0 to 512
EXT4-fs error (device loop3): __ext4_fill_super:5512: inode #2: comm syz-executor.3: iget: special inode unallocated
EXT4-fs (loop3): get root inode failed
EXT4-fs (loop3): mount failed
loop6: detected capacity change from 0 to 512
loop4: detected capacity change from 0 to 273
EXT4-fs error (device loop6): ext4_quota_enable:7136: inode #4: comm syz-executor.6: iget: special inode unallocated
loop2: detected capacity change from 0 to 512
EXT4-fs error (device loop6): ext4_quota_enable:7138: comm syz-executor.6: Bad quota inode: 4, type: 1
EXT4-fs (loop4): bad geometry: block count 128 exceeds size of device (68 blocks)
EXT4-fs warning (device loop6): ext4_enable_quotas:7176: Failed to enable quota tracking (type=1, err=-117, ino=4). Please run e2fsck to fix.
EXT4-fs (loop6): mount failed