tcp_v6_rcv+0x2385/0x2be0 net/ipv6/tcp_ipv6.c:1919 ip6_protocol_deliver_rcu+0xcb0/0x15c0 net/ipv6/ip6_input.c:436 ip6_input_finish+0xde/0x190 net/ipv6/ip6_input.c:480 NF_HOOK+0x30c/0x3a0 include/linux/netfilter.h:314 ip6_input+0x16a/0x270 net/ipv6/ip6_input.c:491 NF_HOOK+0x30c/0x3a0 include/linux/netfilter.h:314 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:3433! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 11342 Comm: syz.7.1392 Not tainted 6.15.0-rc3-syzkaller-00094-g02ddfb981de8 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:filemap_fault+0x1181/0x1200 mm/filemap.c:3433 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 19 8a 2a 00 e9 81 fc ff ff e8 ef 94 c8 ff 48 89 df 48 c7 c6 00 04 74 8b e8 40 ab 0f 00 90 <0f> 0b e8 d8 94 c8 ff 48 8b 3c 24 48 c7 c6 80 0a 74 8b e8 28 ab 0f RSP: 0018:ffffc900042b7400 EFLAGS: 00010246 RAX: 0a444c38265ef200 RBX: ffffea0001b22880 RCX: 0a444c38265ef200 RDX: 0000000000000000 RSI: ffffffff8d933332 RDI: ffff88801ef5bc00 RBP: ffffc900042b7538 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba4b4 R12: dffffc0000000000 R13: 1ffffd4000364511 R14: ffffea0001b22898 R15: ffffea0001b22888 FS: 00007f9d128376c0(0000) GS:ffff8881261cf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000110030 CR3: 000000002f89c000 CR4: 0000000000350ef0 Call Trace: __do_fault+0x138/0x390 mm/memory.c:5098 do_read_fault mm/memory.c:5518 [inline] do_fault mm/memory.c:5652 [inline] do_pte_missing mm/memory.c:4160 [inline] handle_pte_fault mm/memory.c:5997 [inline] __handle_mm_fault+0x363e/0x5380 mm/memory.c:6140 handle_mm_fault+0x3f6/0x8c0 mm/memory.c:6309 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388 handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline] RIP: 0010:raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline] RIP: 0010:_inline_copy_from_user include/linux/uaccess.h:178 [inline] RIP: 0010:_copy_from_user+0x75/0xb0 lib/usercopy.c:18 Code: fd eb 49 48 b8 00 f0 ff ff ff 7f 00 00 49 39 c7 4c 0f 47 f8 4c 89 f7 89 de e8 67 ad 69 fd 0f 01 cb 4c 89 f7 48 89 d9 4c 89 fe a4 0f 1f 00 49 89 cf 0f 01 ca 31 ff 48 89 ce e8 36 ba 07 fd 4d RSP: 0018:ffffc900042b79a0 EFLAGS: 00050256 RAX: 00007ffffffff001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 000020000000183b RDI: ffff888057c2057b RBP: 000000000000da85 R08: ffff888057c2057b R09: 1ffff1100af840af R10: dffffc0000000000 R11: ffffed100af840b0 R12: 0000000000000000 R13: 0000000000000001 R14: ffff888057c2057b R15: 000020000000183b copy_from_user include/linux/uaccess.h:212 [inline] snd_rawmidi_kernel_write1+0x3ab/0x650 sound/core/rawmidi.c:1560 snd_rawmidi_write+0x5ad/0xbd0 sound/core/rawmidi.c:1629 do_loop_readv_writev include/linux/uio.h:-1 [inline] vfs_writev+0x4a5/0x9a0 fs/read_write.c:1057 do_writev+0x14d/0x2d0 fs/read_write.c:1101 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9d1198e969 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:00007f9d12837038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f9d11bb5fa0 RCX: 00007f9d1198e969 RDX: 0000000000000002 RSI: 0000200000000840 RDI: 0000000000000004 RBP: 00007f9d11a10ab1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f9d11bb5fa0 R15: 00007ffe19298098 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_fault+0x1181/0x1200 mm/filemap.c:3433 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 19 8a 2a 00 e9 81 fc ff ff e8 ef 94 c8 ff 48 89 df 48 c7 c6 00 04 74 8b e8 40 ab 0f 00 90 <0f> 0b e8 d8 94 c8 ff 48 8b 3c 24 48 c7 c6 80 0a 74 8b e8 28 ab 0f RSP: 0018:ffffc900042b7400 EFLAGS: 00010246 RAX: 0a444c38265ef200 RBX: ffffea0001b22880 RCX: 0a444c38265ef200 RDX: 0000000000000000 RSI: ffffffff8d933332 RDI: ffff88801ef5bc00 RBP: ffffc900042b7538 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba4b4 R12: dffffc0000000000 R13: 1ffffd4000364511 R14: ffffea0001b22898 R15: ffffea0001b22888 FS: 00007f9d128376c0(0000) GS:ffff8881261cf000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000110030 CR3: 000000002f89c000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: fd std 1: eb 49 jmp 0x4c 3: 48 b8 00 f0 ff ff ff movabs $0x7ffffffff000,%rax a: 7f 00 00 d: 49 39 c7 cmp %rax,%r15 10: 4c 0f 47 f8 cmova %rax,%r15 14: 4c 89 f7 mov %r14,%rdi 17: 89 de mov %ebx,%esi 19: e8 67 ad 69 fd call 0xfd69ad85 1e: 0f 01 cb stac 21: 4c 89 f7 mov %r14,%rdi 24: 48 89 d9 mov %rbx,%rcx 27: 4c 89 fe mov %r15,%rsi * 2a: f3 a4 rep movsb %ds:(%rsi),%es:(%rdi) <-- trapping instruction 2c: 0f 1f 00 nopl (%rax) 2f: 49 89 cf mov %rcx,%r15 32: 0f 01 ca clac 35: 31 ff xor %edi,%edi 37: 48 89 ce mov %rcx,%rsi 3a: e8 36 ba 07 fd call 0xfd07ba75 3f: 4d rex.WRB