Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 UID: 0 PID: 10078 Comm: syz.4.940 Not tainted 6.11.0-rc7-syzkaller-00097-g196145c606d0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617
Code: 8d 98 00 06 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 6e 4e 05 f7 48 8b 1b 48 83 c3 02 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 01 00 00 c6 03 01 31 db e9 d6 f9 ff
RSP: 0018:ffffc90002eafd20 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff88802e973c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002eafe78 R08: ffffffff8af5839c R09: 1ffffffff283c920
R10: dffffc0000000000 R11: fffffbfff283c921 R12: 1ffff1100fc7e242
R13: dffffc0000000000 R14: ffff88807e3f1212 R15: 1ffff1100fc7e2ff
FS: 0000000000000000(0000) GS:ffff8880b8900000(0063) knlGS:00000000f5735b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00007fadae30cff8 CR3: 0000000050d9a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__sys_listen_socket net/socket.c:1883 [inline]
__sys_listen+0x1b7/0x230 net/socket.c:1894
__do_sys_listen net/socket.c:1902 [inline]
__se_sys_listen net/socket.c:1900 [inline]
__ia32_sys_listen+0x5a/0x70 net/socket.c:1900
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf7fd6579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f573556c EFLAGS: 00000206 ORIG_RAX: 000000000000016b
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617
Code: 8d 98 00 06 00 00 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 6e 4e 05 f7 48 8b 1b 48 83 c3 02 48 89 d8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 8e 01 00 00 c6 03 01 31 db e9 d6 f9 ff
RSP: 0018:ffffc90002eafd20 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff88802e973c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002eafe78 R08: ffffffff8af5839c R09: 1ffffffff283c920
R10: dffffc0000000000 R11: fffffbfff283c921 R12: 1ffff1100fc7e242
R13: dffffc0000000000 R14: ffff88807e3f1212 R15: 1ffff1100fc7e2ff
FS: 0000000000000000(0000) GS:ffff8880b8900000(0063) knlGS:00000000f5735b40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 000055f65cf85950 CR3: 0000000050d9a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 8d 98 00 06 00 00 lea 0x600(%rax),%ebx
6: 48 89 d8 mov %rbx,%rax
9: 48 c1 e8 03 shr $0x3,%rax
d: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1)
12: 74 08 je 0x1c
14: 48 89 df mov %rbx,%rdi
17: e8 6e 4e 05 f7 call 0xf7054e8a
1c: 48 8b 1b mov (%rbx),%rbx
1f: 48 83 c3 02 add $0x2,%rbx
23: 48 89 d8 mov %rbx,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction
2f: 84 c0 test %al,%al
31: 0f 85 8e 01 00 00 jne 0x1c5
37: c6 03 01 movb $0x1,(%rbx)
3a: 31 db xor %ebx,%ebx
3c: e9 .byte 0xe9
3d: d6 (bad)
3e: f9 stc
3f: ff .byte 0xff