BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 113c87067 P4D 113c87067 PUD 122ae6067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 0 PID: 533 Comm: syz-executor.0 Not tainted 6.1.68-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc90002fff908 EFLAGS: 00010246 RAX: 1ffff11022525197 RBX: ffff888112928cb8 RCX: ffff8881119a0000 RDX: 0000000000000000 RSI: ffff888112928c00 RDI: ffff888112621c80 RBP: ffffc90002fff930 R08: ffffffff840020c7 R09: ffff88810892ac80 R10: 0000000000000010 R11: dffffc0000000001 R12: 0000000000000004 R13: dffffc0000000000 R14: ffff888112621c80 R15: dffffc0000000000 FS: 00007f018b5ff6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001228a9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sk_psock_verdict_data_ready+0x129/0x160 net/core/skmsg.c:1219 unix_stream_sendmsg+0x8fd/0x1070 net/unix/af_unix.c:2245 sock_sendmsg_nosec net/socket.c:716 [inline] __sock_sendmsg net/socket.c:728 [inline] ____sys_sendmsg+0x5dc/0x9d0 net/socket.c:2499 ___sys_sendmsg net/socket.c:2553 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2582 __do_sys_sendmsg net/socket.c:2591 [inline] __se_sys_sendmsg net/socket.c:2589 [inline] __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2589 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f018ba7dda9 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:00007f018b5ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f018bbac120 RCX: 00007f018ba7dda9 RDX: 0000000000040000 RSI: 0000000020000980 RDI: 0000000000000003 RBP: 00007f018baca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f018bbac120 R15: 00007ffdbbdb7a78 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc90002fff908 EFLAGS: 00010246 RAX: 1ffff11022525197 RBX: ffff888112928cb8 RCX: ffff8881119a0000 RDX: 0000000000000000 RSI: ffff888112928c00 RDI: ffff888112621c80 RBP: ffffc90002fff930 R08: ffffffff840020c7 R09: ffff88810892ac80 R10: 0000000000000010 R11: dffffc0000000001 R12: 0000000000000004 R13: dffffc0000000000 R14: ffff888112621c80 R15: dffffc0000000000 FS: 00007f018b5ff6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001228a9000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400