------------[ cut here ]------------ kernel BUG at fs/buffer.c:1859! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 7042 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-13505-g17784de648be #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:__block_write_full_page+0x103b/0x17d0 fs/buffer.c:1859 Code: 87 ff e9 b7 01 00 00 e8 63 e1 87 ff 4c 89 ff e8 7b b3 ff ff 48 89 c7 48 c7 c6 c0 a7 f7 8a e8 4c 91 c7 ff 0f 0b e8 45 e1 87 ff <0f> 0b f3 0f 1e fa 4c 89 fe 48 81 e6 ff 0f 00 00 31 ff e8 6e e5 87 RSP: 0018:ffffc90014706f60 EFLAGS: 00010246 RAX: ffffffff820385fb RBX: 00fff0000000a02f RCX: 0000000000040000 RDX: ffffc90004071000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000008000 R08: ffffffff82037df5 R09: fffff94000090131 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000001 R14: dffffc0000000000 R15: ffffea0000480980 FS: 00007ff073e24700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f8dc5d000 CR3: 0000000027983000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: writeout mm/migrate.c:901 [inline] fallback_migrate_folio mm/migrate.c:925 [inline] move_to_new_folio+0x7a1/0x14d0 mm/migrate.c:975 migrate_folio_move mm/migrate.c:1275 [inline] migrate_pages_batch+0x25ab/0x3670 mm/migrate.c:1789 migrate_pages_sync mm/migrate.c:1889 [inline] migrate_pages+0x27ce/0x35d0 mm/migrate.c:1970 compact_zone+0x2ac4/0x4040 mm/compaction.c:2439 compact_node+0x216/0x420 mm/compaction.c:2734 compact_nodes mm/compaction.c:2747 [inline] sysctl_compaction_handler+0xab/0x150 mm/compaction.c:2784 proc_sys_call_handler+0x545/0x8a0 fs/proc/proc_sysctl.c:604 call_write_iter include/linux/fs.h:1868 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x790/0xb20 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff07308c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff073e24168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff0731abf80 RCX: 00007ff07308c169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007ff0730e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff0059b16f R14: 00007ff073e24300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__block_write_full_page+0x103b/0x17d0 fs/buffer.c:1859 Code: 87 ff e9 b7 01 00 00 e8 63 e1 87 ff 4c 89 ff e8 7b b3 ff ff 48 89 c7 48 c7 c6 c0 a7 f7 8a e8 4c 91 c7 ff 0f 0b e8 45 e1 87 ff <0f> 0b f3 0f 1e fa 4c 89 fe 48 81 e6 ff 0f 00 00 31 ff e8 6e e5 87 RSP: 0018:ffffc90014706f60 EFLAGS: 00010246 RAX: ffffffff820385fb RBX: 00fff0000000a02f RCX: 0000000000040000 RDX: ffffc90004071000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000008000 R08: ffffffff82037df5 R09: fffff94000090131 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 R13: 0000000000000001 R14: dffffc0000000000 R15: ffffea0000480980 FS: 00007ff073e24700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f97d65000 CR3: 0000000027983000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400