------------[ cut here ]------------ kernel BUG at fs/buffer.c:1900! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 11882 Comm: syz-executor.5 Not tainted 6.7.0-rc3-syzkaller-00014-gdf60cee26a2e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:__block_write_full_folio+0xbaa/0xdb0 fs/buffer.c:1900 Code: 74 89 ff 4c 39 eb 0f 85 68 ff ff ff 44 8b 7c 24 08 e8 4a 74 89 ff 48 8b 3c 24 e8 f1 3b b7 ff e9 b8 fb ff ff e8 37 74 89 ff 90 <0f> 0b e8 2f 74 89 ff 90 0f 0b e8 27 74 89 ff be cd 00 00 00 48 c7 RSP: 0018:ffffc9000a0e6d38 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888040d7a3e0 RCX: ffffc9000b55d000 RDX: 0000000000040000 RSI: ffffffff81fd0c29 RDI: 0000000000000007 RBP: ffff888040d7a3e0 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: fffff5200141cdcc R14: ffffc9000a0e6e40 R15: 0000000000000001 FS: 00007ff6c8b936c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555565fc938 CR3: 000000001f3b9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> block_write_full_page+0x399/0x530 fs/buffer.c:2750 writeout+0x1b8/0x290 mm/migrate.c:896 fallback_migrate_folio mm/migrate.c:920 [inline] move_to_new_folio+0x2ae/0x690 mm/migrate.c:969 migrate_folio_move mm/migrate.c:1282 [inline] migrate_pages_batch+0x1c29/0x2d60 mm/migrate.c:1773 migrate_pages_sync mm/migrate.c:1866 [inline] migrate_pages+0x1db6/0x27e0 mm/migrate.c:1948 compact_zone+0x1dcb/0x3f80 mm/compaction.c:2532 compact_node+0x13e/0x1e0 mm/compaction.c:2829 compact_nodes mm/compaction.c:2842 [inline] sysctl_compaction_handler mm/compaction.c:2888 [inline] sysctl_compaction_handler+0x11b/0x1c0 mm/compaction.c:2875 proc_sys_call_handler+0x4c6/0x6f0 fs/proc/proc_sysctl.c:600 call_write_iter include/linux/fs.h:2020 [inline] do_iter_readv_writev+0x21e/0x3c0 fs/read_write.c:735 do_iter_write+0x17f/0x7f0 fs/read_write.c:860 vfs_iter_write+0x7a/0xb0 fs/read_write.c:901 iter_file_splice_write+0x698/0xc00 fs/splice.c:736 do_splice_from fs/splice.c:933 [inline] direct_splice_actor+0x118/0x180 fs/splice.c:1142 splice_direct_to_actor+0x347/0xa30 fs/splice.c:1088 do_splice_direct+0x1af/0x280 fs/splice.c:1194 do_sendfile+0xb3e/0x1310 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1316 [inline] __se_sys_sendfile64 fs/read_write.c:1308 [inline] __x64_sys_sendfile64+0x155/0x220 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7ff6c7e7cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff6c8b930c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007ff6c7f9bf80 RCX: 00007ff6c7e7cae9 RDX: 00000000200000c0 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007ff6c7ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007ff6c7f9bf80 R15: 00007ffdcdee29b8 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__block_write_full_folio+0xbaa/0xdb0 fs/buffer.c:1900 Code: 74 89 ff 4c 39 eb 0f 85 68 ff ff ff 44 8b 7c 24 08 e8 4a 74 89 ff 48 8b 3c 24 e8 f1 3b b7 ff e9 b8 fb ff ff e8 37 74 89 ff 90 <0f> 0b e8 2f 74 89 ff 90 0f 0b e8 27 74 89 ff be cd 00 00 00 48 c7 RSP: 0018:ffffc9000a0e6d38 EFLAGS: 00010246 RAX: 0000000000040000 RBX: ffff888040d7a3e0 RCX: ffffc9000b55d000 RDX: 0000000000040000 RSI: ffffffff81fd0c29 RDI: 0000000000000007 RBP: ffff888040d7a3e0 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001 R13: fffff5200141cdcc R14: ffffc9000a0e6e40 R15: 0000000000000001 FS: 00007ff6c8b936c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055555673cda8 CR3: 000000001f3b9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400