loop0: detected capacity change from 0 to 128 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:1582! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 6151 Comm: syz.0.51 Not tainted 6.16.0-rc4-next-20250702-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582 Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 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:ffffc90003c5f8e0 EFLAGS: 00010293 RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000 RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148 R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000 R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000 FS: 0000555591bcd500(0000) GS:ffff888125d1d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5810d71d60 CR3: 0000000076ee0000 CR4: 00000000003526f0 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 include/linux/buffer_head.h:346 [inline] fat_fill_super+0x5e2/0x3570 fs/fat/inode.c:1598 get_tree_bdev_flags+0x40b/0x4d0 fs/super.c:1681 vfs_get_tree+0x92/0x2b0 fs/super.c:1804 do_new_mount+0x24a/0xa40 fs/namespace.c:3902 do_mount fs/namespace.c:4239 [inline] __do_sys_mount fs/namespace.c:4450 [inline] __se_sys_mount+0x317/0x410 fs/namespace.c:4427 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: 0033:0x7f5810d900ca 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:00007ffe6ee42248 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffe6ee422d0 RCX: 00007f5810d900ca RDX: 0000200000000240 RSI: 0000200000000280 RDI: 00007ffe6ee42290 RBP: 0000200000000240 R08: 00007ffe6ee422d0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000280 R13: 00007ffe6ee42290 R14: 0000000000000221 R15: 0000200000000480 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_set_bh+0x1dc/0x1e0 fs/buffer.c:1582 Code: 4c 89 e2 e8 d6 eb b6 02 e9 42 ff ff ff e8 cc 7c 79 ff 48 89 df 48 c7 c6 a0 ec 99 8b e8 ad af c1 ff 90 0f 0b e8 b5 7c 79 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:ffffc90003c5f8e0 EFLAGS: 00010293 RAX: ffffffff8246582b RBX: ffffea0001840a40 RCX: ffff8880776c3c00 RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000001000 RBP: dffffc0000000000 R08: ffffea0001840a47 R09: 1ffffd4000308148 R10: dffffc0000000000 R11: fffff94000308149 R12: 0000000000000000 R13: 0000000000001000 R14: ffff8880744cfcb0 R15: 0000000000001000 FS: 0000555591bcd500(0000) GS:ffff888125c1d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9535e0f000 CR3: 0000000076ee0000 CR4: 00000000003526f0