BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 1f0ee067 P4D 1f0ee067 PUD 7f647067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 19244 Comm: syz-executor.0 Not tainted 6.8.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900046ef858 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88801cd59000 RCX: ffffffff8893120f RDX: 1ffff1100f2e725c RSI: ffffffff88931219 RDI: ffff88801cd59000 RBP: 0000000000000004 R08: 0000000000000007 R09: 0000000000000000 R10: ffff888079739000 R11: 0000000000000000 R12: ffff888079739000 R13: 0000000000000000 R14: ffff88801cd59000 R15: ffff88801cd59000 FS: 00007f085520d6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000027f6f000 CR4: 0000000000350ef0 Call Trace: sk_psock_verdict_data_ready net/core/skmsg.c:1230 [inline] sk_psock_verdict_data_ready+0x207/0x3d0 net/core/skmsg.c:1210 unix_dgram_sendmsg+0x11b3/0x1ca0 net/unix/af_unix.c:2114 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:52 [inline] do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f085447cda9 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:00007f085520d0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f08545abf80 RCX: 00007f085447cda9 RDX: 0000000000000002 RSI: 0000000020001680 RDI: 0000000000000003 RBP: 00007f08544c947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f08545abf80 R15: 00007ffd897b8c18 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc900046ef858 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88801cd59000 RCX: ffffffff8893120f RDX: 1ffff1100f2e725c RSI: ffffffff88931219 RDI: ffff88801cd59000 RBP: 0000000000000004 R08: 0000000000000007 R09: 0000000000000000 R10: ffff888079739000 R11: 0000000000000000 R12: ffff888079739000 R13: 0000000000000000 R14: ffff88801cd59000 R15: ffff88801cd59000 FS: 00007f085520d6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000027f6f000 CR4: 0000000000350ef0