EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 overlaps superblock
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WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#0: syz-executor.6/9252
Modules linked in:
CPU: 0 UID: 0 PID: 9252 Comm: syz-executor.6 Not tainted 6.18.0-rc3-next-20251028 #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 47 95 5b 00 e9 a9 fe ff ff e8 3d bb 1e 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 2c bb 1e 00 90 0f 0b 90 45 31
RSP: 0018:ffff88805397f238 EFLAGS: 00010212
RAX: 0000000000002f05 RBX: ffff88805397f350 RCX: ffffc90006035000
RDX: 0000000000040000 RSI: ffffffff81555923 RDI: 0000000000000006
RBP: ffff88805397f318 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d30650
R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000
FS: 00007f7d33533700(0000) GS:ffff8880e53f4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50b15e2fe8 CR3: 000000004fcf8000 CR4: 0000000000350ef0
Call Trace:
_prb_read_valid+0x2f3/0x830
prb_read_valid+0x78/0xa0
printk_get_next_message+0x10b/0x570
console_flush_one_record+0x64f/0xb20
__console_flush_and_unlock+0xb1/0x1d0
vprintk_emit+0x4c1/0x690
_printk+0xbe/0xf0
__ext4_msg+0x17e/0x240
ext4_fill_super+0xafa6/0xb910
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: 0033:0x7f7d35fbf04a
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:00007f7d33532fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f7d35fbf04a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f7d33533000
RBP: 00007f7d33533040 R08: 00007f7d33533040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f7d33533000 R15: 0000000020013c00
irq event stamp: 1453
hardirqs last enabled at (1459): [] vprintk_emit+0x650/0x690
hardirqs last disabled at (1464): [] vprintk_emit+0x5e1/0x690
softirqs last enabled at (1254): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1207): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop2: detected capacity change from 0 to 512
FAT-fs (loop1): Directory bread(block 10) failed
FAT-fs (loop1): Directory bread(block 11) failed
EXT4-fs (loop3): VFS: Can't find ext4 filesystem
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
loop3: detected capacity change from 0 to 512
EXT4-fs (loop3): VFS: Can't find ext4 filesystem
loop7: detected capacity change from 0 to 512
loop6: detected capacity change from 0 to 512
EXT4-fs (loop6): ext4_check_descriptors: Inode table for group 0 overlaps superblock
EXT4-fs (loop6): group descriptors corrupted!
loop1: detected capacity change from 0 to 10
loop2: detected capacity change from 0 to 512
FAT-fs (loop1): Directory bread(block 10) failed
FAT-fs (loop1): Directory bread(block 11) failed
FAT-fs (loop1): Directory bread(block 10) failed
FAT-fs (loop1): Directory bread(block 11) 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