------------[ cut here ]------------ kernel BUG at fs/buffer.c:1922! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6184 Comm: syz-executor.4 Not tainted 6.5.0-rc4-syzkaller-00009-g4b954598a47b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 RIP: 0010:__block_write_full_folio+0xdcf/0x10b0 fs/buffer.c:1922 Code: fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 89 f4 86 ff 49 81 e6 ff 0f 00 00 74 11 e8 3b f0 86 ff e9 33 01 00 00 e8 31 f0 86 ff <0f> 0b 48 8b 1c 24 48 89 df be 08 00 00 00 e8 ce ba df ff 48 c1 eb RSP: 0018:ffffc900030de990 EFLAGS: 00010246 RAX: ffffffff8204b74f RBX: 00fff0000000a02f RCX: 0000000000040000 RDX: ffffc90006939000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000008000 R08: ffffffff8204b0eb R09: 1ffffd4000067320 R10: dffffc0000000000 R11: fffff94000067321 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffea0000339900 R15: 0000000000000000 FS: 00007fe4ba6666c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e5daebe4e0 CR3: 0000000024c2f000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: writeout mm/migrate.c:894 [inline] fallback_migrate_folio mm/migrate.c:918 [inline] move_to_new_folio+0x7a1/0x14d0 mm/migrate.c:968 migrate_folio_move mm/migrate.c:1272 [inline] migrate_pages_batch+0x282d/0x3840 mm/migrate.c:1757 migrate_pages_sync mm/migrate.c:1845 [inline] migrate_pages+0x249f/0x3210 mm/migrate.c:1927 compact_zone+0x308f/0x4750 mm/compaction.c:2484 compact_node+0x217/0x420 mm/compaction.c:2781 compact_nodes mm/compaction.c:2794 [inline] sysctl_compaction_handler+0x103/0x1b0 mm/compaction.c:2840 proc_sys_call_handler+0x546/0x8a0 fs/proc/proc_sysctl.c:598 do_iter_write+0x84f/0xde0 fs/read_write.c:860 iter_file_splice_write+0x86d/0x1010 fs/splice.c:739 do_splice_from fs/splice.c:936 [inline] direct_splice_actor+0xea/0x1c0 fs/splice.c:1145 splice_direct_to_actor+0x376/0x9e0 fs/splice.c:1091 do_splice_direct+0x2ac/0x3f0 fs/splice.c:1197 do_sendfile+0x623/0x1070 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1316 [inline] __se_sys_sendfile64+0x100/0x1e0 fs/read_write.c:1308 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: 0033:0x7fe4b987cae9 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:00007fe4ba6660c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe4b999bf80 RCX: 00007fe4b987cae9 RDX: 00000000200000c0 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007fe4b98c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fe4b999bf80 R15: 00007fff25d55d68 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__block_write_full_folio+0xdcf/0x10b0 fs/buffer.c:1922 Code: fa 4c 89 f6 48 81 e6 ff 0f 00 00 31 ff e8 89 f4 86 ff 49 81 e6 ff 0f 00 00 74 11 e8 3b f0 86 ff e9 33 01 00 00 e8 31 f0 86 ff <0f> 0b 48 8b 1c 24 48 89 df be 08 00 00 00 e8 ce ba df ff 48 c1 eb RSP: 0018:ffffc900030de990 EFLAGS: 00010246 RAX: ffffffff8204b74f RBX: 00fff0000000a02f RCX: 0000000000040000 RDX: ffffc90006939000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 0000000000008000 R08: ffffffff8204b0eb R09: 1ffffd4000067320 R10: dffffc0000000000 R11: fffff94000067321 R12: 0000000000000001 R13: dffffc0000000000 R14: ffffea0000339900 R15: 0000000000000000 FS: 00007fe4ba6666c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f121000 CR3: 0000000024c2f000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400