general protection fault, probably for non-canonical address 0xdffffc0000000182: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000c10-0x0000000000000c17]
CPU: 0 PID: 12931 Comm: syz-executor.1 Not tainted 5.15.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
RIP: 0010:percpu_ref_put_many include/linux/percpu-refcount.h:319 [inline]
RIP: 0010:percpu_ref_put include/linux/percpu-refcount.h:338 [inline]
RIP: 0010:cgroup_bpf_put include/linux/cgroup.h:926 [inline]
RIP: 0010:cgroup_sk_free+0x8d/0x570 kernel/cgroup/cgroup.c:6613
Code: 10 06 00 40 84 ed 5a 0f 84 42 01 00 00 e8 ab 08 06 00 4c 8d ab 10 0c 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 6f 04 00 00 48 8b ab 10 0c 00 00 31 ff 49 89 ec
RSP: 0018:ffffc90000007c38 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: 0000000000000182 RSI: ffffffff816f29b5 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff816f29a6 R11: 0000000000000000 R12: ffff88806ff15000
R13: 0000000000000c10 R14: ffffffff8d0cf10c R15: 0000000000000000
FS: 00007f58a4f70700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002033f030 CR3: 0000000039d1c000 CR4: 00000000003526f0
Call Trace:
sk_prot_free net/core/sock.c:1852 [inline]
__sk_destruct+0x579/0x900 net/core/sock.c:1943
sk_destruct+0xbd/0xe0 net/core/sock.c:1958
__sk_free+0xef/0x3d0 net/core/sock.c:1969
sk_free+0x78/0xa0 net/core/sock.c:1980
sock_put include/net/sock.h:1816 [inline]
nr_heartbeat_expiry+0x2e7/0x460 net/netrom/nr_timer.c:148
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 8a 94 22 f8 48 89 ef e8 d2 0a 23 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 f3 cb 16 f8 65 8b 05 6c 03 ca 76 85 c0 74 0a 5b 5d c3 e8 d0 6f
RSP: 0018:ffffc90003c67740 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff1fa8c12
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff8880787e36c0 R08: 0000000000000001 R09: ffffffff8fd009df
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000010 R14: 0000000000000001 R15: 0000000000000246
spin_unlock_irqrestore include/linux/spinlock.h:418 [inline]
__wake_up_common_lock+0xde/0x130 kernel/sched/wait.c:140
__unix_dgram_recvmsg+0x2cd/0xb80 net/unix/af_unix.c:2293
unix_dgram_recvmsg+0xca/0xf0 net/unix/af_unix.c:2364
sock_recvmsg_nosec net/socket.c:944 [inline]
____sys_recvmsg+0x527/0x600 net/socket.c:2626
___sys_recvmsg+0x127/0x200 net/socket.c:2670
do_recvmmsg+0x24d/0x6d0 net/socket.c:2764
__sys_recvmmsg net/socket.c:2843 [inline]
__do_sys_recvmmsg net/socket.c:2866 [inline]
__se_sys_recvmmsg net/socket.c:2859 [inline]
__x64_sys_recvmmsg+0x20b/0x260 net/socket.c:2859
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f58a7a1a709
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f58a4f70188 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f58a7b1f020 RCX: 00007f58a7a1a709
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 00007f58a7a74cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2a4d51ef R14: 00007f58a4f70300 R15: 0000000000022000
Modules linked in:
---[ end trace 76f508f1f07f8ab3 ]---
RIP: 0010:__ref_is_percpu include/linux/percpu-refcount.h:174 [inline]
RIP: 0010:percpu_ref_put_many include/linux/percpu-refcount.h:319 [inline]
RIP: 0010:percpu_ref_put include/linux/percpu-refcount.h:338 [inline]
RIP: 0010:cgroup_bpf_put include/linux/cgroup.h:926 [inline]
RIP: 0010:cgroup_sk_free+0x8d/0x570 kernel/cgroup/cgroup.c:6613
Code: 10 06 00 40 84 ed 5a 0f 84 42 01 00 00 e8 ab 08 06 00 4c 8d ab 10 0c 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 6f 04 00 00 48 8b ab 10 0c 00 00 31 ff 49 89 ec
RSP: 0018:ffffc90000007c38 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000100
RDX: 0000000000000182 RSI: ffffffff816f29b5 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff816f29a6 R11: 0000000000000000 R12: ffff88806ff15000
R13: 0000000000000c10 R14: ffffffff8d0cf10c R15: 0000000000000000
FS: 00007f58a4f70700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002033f030 CR3: 0000000039d1c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
0: 10 06 adc %al,(%rsi)
2: 00 40 84 add %al,-0x7c(%rax)
5: ed in (%dx),%eax
6: 5a pop %rdx
7: 0f 84 42 01 00 00 je 0x14f
d: e8 ab 08 06 00 callq 0x608bd
12: 4c 8d ab 10 0c 00 00 lea 0xc10(%rbx),%r13
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 4c 89 ea mov %r13,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 6f 04 00 00 jne 0x4a3
34: 48 8b ab 10 0c 00 00 mov 0xc10(%rbx),%rbp
3b: 31 ff xor %edi,%edi
3d: 49 89 ec mov %rbp,%r12