------------[ cut here ]------------ kernel BUG at fs/buffer.c:2785! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 8129 Comm: syz.2.298 Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:submit_bh_wbc+0x556/0x560 fs/buffer.c:2785 Code: 89 fa e8 4d a8 cb 02 e9 95 fe ff ff e8 33 94 74 ff 90 0f 0b e8 2b 94 74 ff 90 0f 0b e8 23 94 74 ff 90 0f 0b e8 1b 94 74 ff 90 <0f> 0b e8 13 94 74 ff 90 0f 0b 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004bcef58 EFLAGS: 00010283 RAX: ffffffff82205205 RBX: 0000000000000154 RCX: 0000000000040000 RDX: ffffc9000a77a000 RSI: 0000000000002ef3 RDI: 0000000000002ef4 RBP: 0000000000000100 R08: ffffffff82204dc9 R09: 1ffff1100ef91257 R10: dffffc0000000000 R11: ffffed100ef91258 R12: 0000000000000000 R13: ffff888077c892b8 R14: 0000000000000000 R15: 1ffff1100ef91257 FS: 00007eff68ec36c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110f257a6b CR3: 0000000063776000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: submit_bh fs/buffer.c:2824 [inline] block_read_full_folio+0x93b/0xcd0 fs/buffer.c:2451 do_mpage_readpage+0x1a73/0x1c80 fs/mpage.c:317 mpage_read_folio+0x108/0x1e0 fs/mpage.c:392 filemap_read_folio+0x14b/0x630 mm/filemap.c:2367 filemap_update_page mm/filemap.c:2451 [inline] filemap_get_pages+0x17af/0x2540 mm/filemap.c:2572 filemap_splice_read+0x68e/0xef0 mm/filemap.c:2921 do_splice_read fs/splice.c:985 [inline] splice_direct_to_actor+0x4af/0xc80 fs/splice.c:1089 do_splice_direct_actor fs/splice.c:1207 [inline] do_splice_direct+0x289/0x3e0 fs/splice.c:1233 do_sendfile+0x561/0xe10 fs/read_write.c:1388 __do_sys_sendfile64 fs/read_write.c:1455 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1441 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7eff6817dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 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:00007eff68ec3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007eff68336058 RCX: 00007eff6817dff9 RDX: 0000000000000000 RSI: 000000000000000d RDI: 000000000000000a RBP: 00007eff681f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100001 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007eff68336058 R15: 00007ffec55c9f58 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:submit_bh_wbc+0x556/0x560 fs/buffer.c:2785 Code: 89 fa e8 4d a8 cb 02 e9 95 fe ff ff e8 33 94 74 ff 90 0f 0b e8 2b 94 74 ff 90 0f 0b e8 23 94 74 ff 90 0f 0b e8 1b 94 74 ff 90 <0f> 0b e8 13 94 74 ff 90 0f 0b 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004bcef58 EFLAGS: 00010283 RAX: ffffffff82205205 RBX: 0000000000000154 RCX: 0000000000040000 RDX: ffffc9000a77a000 RSI: 0000000000002ef3 RDI: 0000000000002ef4 RBP: 0000000000000100 R08: ffffffff82204dc9 R09: 1ffff1100ef91257 R10: dffffc0000000000 R11: ffffed100ef91258 R12: 0000000000000000 R13: ffff888077c892b8 R14: 0000000000000000 R15: 1ffff1100ef91257 FS: 00007eff68ec36c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055669b4aa000 CR3: 0000000063776000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400