BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 1c0b3067 P4D 1c0b3067 PUD 698e0067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8102 Comm: syz-executor.5 Not tainted 6.7.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000ae77868 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88801e9e6000 RCX: ffffffff88538a6f RDX: 1ffff11003ba825c RSI: ffffffff88538a79 RDI: ffff88801e9e6000 RBP: 0000000000000004 R08: 0000000000000007 R09: 0000000000000000 R10: ffff88801dd41000 R11: 0000000000000000 R12: ffff88801dd41000 R13: 0000000000000000 R14: ffff88801e9e6000 R15: ffff88801e9e6000 FS: 00007f15c3c206c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000019717000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sk_psock_verdict_data_ready net/core/skmsg.c:1228 [inline] sk_psock_verdict_data_ready+0x207/0x3d0 net/core/skmsg.c:1208 unix_dgram_sendmsg+0x11b3/0x1ca0 net/unix/af_unix.c:2116 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x2ac/0x940 net/socket.c:2584 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638 __sys_sendmmsg+0x1a1/0x450 net/socket.c:2724 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2750 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f15c2e7cae9 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:00007f15c3c200c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f15c2f9bf80 RCX: 00007f15c2e7cae9 RDX: 0000000000000002 RSI: 0000000020001680 RDI: 0000000000000003 RBP: 00007f15c2ec847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f15c2f9bf80 R15: 00007ffe1c491ce8 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000ae77868 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88801e9e6000 RCX: ffffffff88538a6f RDX: 1ffff11003ba825c RSI: ffffffff88538a79 RDI: ffff88801e9e6000 RBP: 0000000000000004 R08: 0000000000000007 R09: 0000000000000000 R10: ffff88801dd41000 R11: 0000000000000000 R12: ffff88801dd41000 R13: 0000000000000000 R14: ffff88801e9e6000 R15: ffff88801e9e6000 FS: 00007f15c3c206c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000019717000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400