loop6: detected capacity change from 0 to 264192 loop2: detected capacity change from 0 to 264192 EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock ------------[ cut here ]------------ WARNING: kernel/printk/printk_ringbuffer.c:1278 at get_data+0x364/0x400, CPU#1: syz-executor.3/8679 Modules linked in: CPU: 1 UID: 0 PID: 8679 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251110 #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 77 87 5c 00 e9 a9 fe ff ff e8 7d 03 1f 00 90 <0f> 0b 90 45 31 e4 e9 3b ff ff ff e8 6c 03 1f 00 90 0f 0b 90 45 31 RSP: 0018:ffff8880420ef238 EFLAGS: 00010206 RAX: 0000000000003500 RBX: ffff8880420ef350 RCX: ffffc90006ec1000 RDX: 0000000000040000 RSI: ffffffff8155a673 RDI: 0000000000000006 RBP: ffff8880420ef318 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d30710 R13: 00003fffffffffff R14: 0000000000000000 R15: 0000000000000000 FS: 00007feeab5cf700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1530700df0 CR3: 000000000c56e000 CR4: 0000000000350ef0 Call Trace: _prb_read_valid+0x2f3/0x830 prb_read_valid+0x78/0xa0 printk_get_next_message+0x10b/0x570 console_flush_one_record+0x673/0xb70 __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+0x726/0x2140 __x64_sys_mount+0x293/0x310 do_syscall_64+0xbf/0x430 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7feeae05b04a 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:00007feeab5cefa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007feeae05b04a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007feeab5cf000 RBP: 00007feeab5cf040 R08: 00007feeab5cf040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020000100 R14: 00007feeab5cf000 R15: 0000000020014100 irq event stamp: 1469 hardirqs last enabled at (1475): [] vprintk_emit+0x650/0x690 hardirqs last disabled at (1480): [] vprintk_emit+0x5e1/0x690 softirqs last enabled at (1252): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1243): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- EXT4-fs warning (device loop0): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs (loop0): mount failed EXT4-fs warning (device loop2): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop2): mount failed EXT4-fs warning (device loop6): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs warning (device loop1): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs warning (device loop7): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop6): mount failed EXT4-fs (loop1): mount failed EXT4-fs (loop7): mount failed loop0: detected capacity change from 0 to 264192 EXT4-fs warning (device loop0): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs (loop0): mount failed loop6: detected capacity change from 0 to 264192 loop3: detected capacity change from 0 to 2048 loop2: detected capacity change from 0 to 264192 EXT4-fs warning (device loop6): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop3): group descriptors corrupted! loop7: detected capacity change from 0 to 2048 EXT4-fs (loop6): mount failed EXT4-fs warning (device loop2): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop2): mount failed EXT4-fs warning (device loop7): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop7): mount failed loop1: detected capacity change from 0 to 264192 EXT4-fs warning (device loop1): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs (loop1): mount failed loop1: detected capacity change from 0 to 264192 loop7: detected capacity change from 0 to 2048 loop0: detected capacity change from 0 to 264192 EXT4-fs warning (device loop1): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. loop6: detected capacity change from 0 to 264192 EXT4-fs warning (device loop7): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. loop3: detected capacity change from 0 to 2048 EXT4-fs (loop1): mount failed EXT4-fs (loop7): mount failed loop2: detected capacity change from 0 to 264192 EXT4-fs (loop3): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop3): group descriptors corrupted! EXT4-fs warning (device loop0): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-22, ino=3). Please run e2fsck to fix. EXT4-fs warning (device loop6): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop0): mount failed EXT4-fs (loop6): mount failed EXT4-fs warning (device loop2): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop2): mount failed loop7: detected capacity change from 0 to 2048 loop0: detected capacity change from 0 to 264192 loop1: detected capacity change from 0 to 264192 EXT4-fs warning (device loop7): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. EXT4-fs (loop7): mount failed EXT4-fs warning (device loop0): ext4_enable_quotas:7177: Failed to enable quota tracking (type=1, err=-22, ino=4). Please run e2fsck to fix. Quota error (device loop1): v2_read_file_info: Number of blocks too big for quota file size (248832 > 6144). EXT4-fs warning (device loop1): ext4_enable_quotas:7177: Failed to enable quota tracking (type=0, err=-117, ino=3). Please run e2fsck to fix. EXT4-fs (loop0): mount failed EXT4-fs (loop1): mount failed