vms_complete_munmap_vmas+0x206/0x8a0 mm/vma.c:1277 do_vmi_align_munmap+0x358/0x420 mm/vma.c:1536 do_vmi_munmap+0x253/0x2e0 mm/vma.c:1584 __vm_munmap+0x23b/0x3d0 mm/vma.c:3155 __do_sys_munmap mm/mmap.c:1080 [inline] __se_sys_munmap mm/mmap.c:1077 [inline] __x64_sys_munmap+0x60/0x70 mm/mmap.c:1077 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 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:868! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 6946 Comm: syz.1.237 Not tainted 6.16.0-syzkaller-12187-g0227b49b5027 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867 Code: 50 c9 ff 4c 89 e7 48 c7 c6 60 3c 94 8b e8 0b a1 31 ff 90 0f 0b e8 d3 50 c9 ff 4c 89 e7 48 c7 c6 40 33 94 8b e8 f4 a0 31 ff 90 <0f> 0b e8 bc 50 c9 ff 4c 89 e7 48 c7 c6 60 3c 94 8b e8 dd a0 31 ff RSP: 0018:ffffc9001d8a6f40 EFLAGS: 00010246 RAX: c59cb2006cf3c700 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d9b6bc1 RDI: 00000000ffffffff RBP: ffffc9001d8a70b0 R08: ffffffff8fa37937 R09: 1ffffffff1f46f26 R10: dffffc0000000000 R11: fffffbfff1f46f27 R12: ffffea0001dbb140 R13: dffffc0000000000 R14: ffffea0001dbb148 R15: 0000000000000002 FS: 00007fe307bc46c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000006680 CR3: 000000001b6ed000 CR4: 0000000000350ef0 Call Trace: filemap_add_folio+0xd5/0x270 mm/filemap.c:969 ra_alloc_folio mm/readahead.c:448 [inline] page_cache_ra_order+0x643/0xd40 mm/readahead.c:506 do_sync_mmap_readahead+0x25e/0x7a0 mm/filemap.c:-1 filemap_fault+0x62c/0x1200 mm/filemap.c:3445 __do_fault+0x138/0x390 mm/memory.c:5152 do_shared_fault mm/memory.c:5637 [inline] do_fault mm/memory.c:5711 [inline] do_pte_missing mm/memory.c:4234 [inline] handle_pte_fault mm/memory.c:6052 [inline] __handle_mm_fault+0x1847/0x5440 mm/memory.c:6195 handle_mm_fault+0x40a/0x8e0 mm/memory.c:6364 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1387 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:__put_user_nocheck_4+0x3/0x10 arch/x86/lib/putuser.S:104 Code: d9 0f 01 cb 89 01 31 c9 0f 01 ca e9 12 8a 97 f5 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 01 cb <89> 01 31 c9 0f 01 ca e9 ec 89 97 f5 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9001d8a78b8 EFLAGS: 00050202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000200000364830 RDX: ffff888031e91e00 RSI: 0000000000000002 RDI: 00000000ffffffff RBP: ffffc9001d8a7a30 R08: ffffc9001d8a7667 R09: 1ffff92003b14ecc R10: dffffc0000000000 R11: fffff52003b14ecd R12: 0000000000000002 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000200000364800 ____sys_recvmsg+0x2ab/0x460 net/socket.c:2847 ___sys_recvmsg+0x1b5/0x510 net/socket.c:2876 do_recvmmsg+0x307/0x770 net/socket.c:2971 __sys_recvmmsg net/socket.c:3045 [inline] __do_sys_recvmmsg net/socket.c:3068 [inline] __se_sys_recvmmsg net/socket.c:3061 [inline] __x64_sys_recvmmsg+0x190/0x240 net/socket.c:3061 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: 0033:0x7fe306d8ebe9 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:00007fe307bc4038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fe306fb6090 RCX: 00007fe306d8ebe9 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003 RBP: 00007fe306e11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe306fb6128 R14: 00007fe306fb6090 R15: 00007ffd41a8f5b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11ad/0x12f0 mm/filemap.c:867 Code: 50 c9 ff 4c 89 e7 48 c7 c6 60 3c 94 8b e8 0b a1 31 ff 90 0f 0b e8 d3 50 c9 ff 4c 89 e7 48 c7 c6 40 33 94 8b e8 f4 a0 31 ff 90 <0f> 0b e8 bc 50 c9 ff 4c 89 e7 48 c7 c6 60 3c 94 8b e8 dd a0 31 ff RSP: 0018:ffffc9001d8a6f40 EFLAGS: 00010246 RAX: c59cb2006cf3c700 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d9b6bc1 RDI: 00000000ffffffff RBP: ffffc9001d8a70b0 R08: ffffffff8fa37937 R09: 1ffffffff1f46f26 R10: dffffc0000000000 R11: fffffbfff1f46f27 R12: ffffea0001dbb140 R13: dffffc0000000000 R14: ffffea0001dbb148 R15: 0000000000000002 FS: 00007fe307bc46c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000006680 CR3: 000000001b6ed000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: d9 0f (bad) (%rdi) 2: 01 cb add %ecx,%ebx 4: 89 01 mov %eax,(%rcx) 6: 31 c9 xor %ecx,%ecx 8: 0f 01 ca clac b: e9 12 8a 97 f5 jmp 0xf5978a22 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 0f 01 cb stac * 2a: 89 01 mov %eax,(%rcx) <-- trapping instruction 2c: 31 c9 xor %ecx,%ecx 2e: 0f 01 ca clac 31: e9 ec 89 97 f5 jmp 0xf5978a22 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop