loop0: detected capacity change from 0 to 8192 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:1582! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6412 Comm: syz.0.121 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582 Code: 4c 89 e2 e8 96 4c 78 02 e9 42 ff ff ff e8 9c d0 75 ff 48 89 df 48 c7 c6 60 0f 5a 8b e8 2d 23 df fe 90 0f 0b e8 85 d0 75 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f RSP: 0018:ffffc9000dcef750 EFLAGS: 00010293 RAX: ffffffff8248be7b RBX: ffffea000109e440 RCX: ffff888000e34900 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000 RBP: dffffc0000000000 R08: ffffea000109e447 R09: 1ffffd4000213c88 R10: dffffc0000000000 R11: fffff94000213c89 R12: 0000000000000000 R13: 0000000000001000 R14: ffff888011802910 R15: 0000000000001000 FS: 00007f6640bc96c0(0000) GS:ffff88808d97e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd69c907000 CR3: 0000000051e8a000 CR4: 0000000000352ef0 Call Trace: folio_alloc_buffers+0x3a0/0x640 fs/buffer.c:946 grow_dev_folio fs/buffer.c:1075 [inline] grow_buffers fs/buffer.c:1116 [inline] __getblk_slow fs/buffer.c:1134 [inline] bdev_getblk+0x286/0x660 fs/buffer.c:1461 __bread_gfp+0x89/0x3c0 fs/buffer.c:1515 sb_bread_unmovable include/linux/buffer_head.h:352 [inline] ntfs_bread+0xc2/0x1e0 fs/ntfs3/fsntfs.c:1033 ntfs_init_from_boot fs/ntfs3/super.c:937 [inline] ntfs_fill_super+0x63d/0x40b0 fs/ntfs3/super.c:1244 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1691 vfs_get_tree+0x8f/0x2b0 fs/super.c:1751 fc_mount fs/namespace.c:1208 [inline] do_new_mount_fc fs/namespace.c:3651 [inline] do_new_mount+0x302/0xa10 fs/namespace.c:3727 do_mount fs/namespace.c:4050 [inline] __do_sys_mount fs/namespace.c:4238 [inline] __se_sys_mount+0x313/0x410 fs/namespace.c:4215 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f663fd9010a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6640bc8e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6640bc8ef0 RCX: 00007f663fd9010a RDX: 0000200000020b80 RSI: 0000200000020bc0 RDI: 00007f6640bc8eb0 RBP: 0000200000020b80 R08: 00007f6640bc8ef0 R09: 0000000000800009 R10: 0000000000800009 R11: 0000000000000246 R12: 0000200000020bc0 R13: 00007f6640bc8eb0 R14: 0000000000020b6d R15: 0000200000020c00 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582 Code: 4c 89 e2 e8 96 4c 78 02 e9 42 ff ff ff e8 9c d0 75 ff 48 89 df 48 c7 c6 60 0f 5a 8b e8 2d 23 df fe 90 0f 0b e8 85 d0 75 ff 90 <0f> 0b 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f RSP: 0018:ffffc9000dcef750 EFLAGS: 00010293 RAX: ffffffff8248be7b RBX: ffffea000109e440 RCX: ffff888000e34900 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000 RBP: dffffc0000000000 R08: ffffea000109e447 R09: 1ffffd4000213c88 R10: dffffc0000000000 R11: fffff94000213c89 R12: 0000000000000000 R13: 0000000000001000 R14: ffff888011802910 R15: 0000000000001000 FS: 00007f6640bc96c0(0000) GS:ffff88808d97e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000041000 CR3: 0000000051e8a000 CR4: 0000000000352ef0