BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor instruction fetch in kernel mode #PF: error_code(0x0010) - not-present page PGD 10a1a7067 P4D 10a1a7067 PUD 1114c2067 PMD 0 Oops: 0010 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8191 Comm: syz-executor.3 Not tainted 6.1.78-syzkaller-00020-gcd89d4fa0722 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000078f908 EFLAGS: 00010246 RAX: 1ffff1102dcba417 RBX: ffff88816e5d20b8 RCX: 0000000000040000 RDX: ffffc90009752000 RSI: 000000000001f662 RDI: ffff88811c86f480 RBP: ffffc9000078f930 R08: ffffffff841d8447 R09: ffff8881002afc80 R10: 0000000000000010 R11: dffffc0000000001 R12: 0000000000000004 R13: dffffc0000000000 R14: ffff88811c86f480 R15: dffffc0000000000 FS: 00007fd58b9f76c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000121d4b000 CR4: 00000000003506a0 DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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+0x5d3/0x9a0 net/socket.c:2504 ___sys_sendmsg net/socket.c:2558 [inline] __sys_sendmsg+0x2a9/0x390 net/socket.c:2587 __do_sys_sendmsg net/socket.c:2596 [inline] __se_sys_sendmsg net/socket.c:2594 [inline] __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2594 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: 0033:0x7fd58c67cf29 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:00007fd58b9f70c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fd58c7b3f80 RCX: 00007fd58c67cf29 RDX: 0000000000000003 RSI: 0000000020000980 RDI: 0000000000000005 RBP: 00007fd58c6ec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fd58c7b3f80 R15: 00007ffca0f83378 Modules linked in: CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0018:ffffc9000078f908 EFLAGS: 00010246 RAX: 1ffff1102dcba417 RBX: ffff88816e5d20b8 RCX: 0000000000040000 RDX: ffffc90009752000 RSI: 000000000001f662 RDI: ffff88811c86f480 RBP: ffffc9000078f930 R08: ffffffff841d8447 R09: ffff8881002afc80 R10: 0000000000000010 R11: dffffc0000000001 R12: 0000000000000004 R13: dffffc0000000000 R14: ffff88811c86f480 R15: dffffc0000000000 FS: 00007fd58b9f76c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 0000000121d4b000 CR4: 00000000003506a0 DR0: 0000000020000300 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600