Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 3 UID: 0 PID: 8959 Comm: syz.2.1111 Not tainted 6.14.0-rc6-syzkaller-00007-g0b46b049d6ec #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:____bpf_get_local_storage kernel/bpf/cgroup.c:1587 [inline]
RIP: 0010:bpf_get_local_storage+0x17b/0x260 kernel/bpf/cgroup.c:1569
Code: 48 8d 7b 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 a6 00 00 00 48 8b 1b e8 13 90 73 09 83 f8 07 89
RSP: 0018:ffffc90000718628 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81e40b82
RDX: 0000000000000000 RSI: ffffffff81e40c38 RDI: ffff88804fde0b20
RBP: ffffc90000718648 R08: 0000000000000005 R09: 0000000000000015
R10: 0000000000000015 R11: 0000000000000002 R12: ffff88802fd2a8c0
R13: ffffc90005722002 R14: 0000000000000000 R15: ffff88802fd2a8f0
FS: 00005555645ba500(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c397a9d CR3: 000000004f62a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 00000000ffff000b DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
bpf_prog_3647604f6c8667e9+0x2e/0x41
bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline]
__bpf_prog_run include/linux/filter.h:701 [inline]
bpf_prog_run include/linux/filter.h:708 [inline]
__bpf_prog_run_save_cb+0x11f/0x330 include/linux/filter.h:938
bpf_prog_run_array_cg kernel/bpf/cgroup.c:68 [inline]
__cgroup_bpf_run_filter_skb+0x470/0xe60 kernel/bpf/cgroup.c:1425
sk_filter_trim_cap+0x234/0xac0 net/core/filter.c:147
tcp_filter net/ipv4/tcp_ipv4.c:2144 [inline]
tcp_v4_rcv+0x28fd/0x4380 net/ipv4/tcp_ipv4.c:2332
ip_protocol_deliver_rcu+0xba/0x4c0 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x316/0x570 net/ipv4/ip_input.c:233
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_local_deliver+0x18e/0x1f0 net/ipv4/ip_input.c:254
dst_input include/net/dst.h:469 [inline]
ip_rcv_finish net/ipv4/ip_input.c:447 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ip_rcv+0x2c3/0x5d0 net/ipv4/ip_input.c:567
__netif_receive_skb_one_core+0x199/0x1e0 net/core/dev.c:5893
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6006
process_backlog+0x443/0x15f0 net/core/dev.c:6354
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7188
napi_poll net/core/dev.c:7257 [inline]
net_rx_action+0xa94/0x1010 net/core/dev.c:7379
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
do_softirq kernel/softirq.c:462 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:449
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:389
spin_unlock_bh include/linux/spinlock.h:396 [inline]
bpf_link_free_id kernel/bpf/syscall.c:3076 [inline]
bpf_link_free_id kernel/bpf/syscall.c:3069 [inline]
bpf_link_free+0x95/0x390 kernel/bpf/syscall.c:3134
bpf_link_put_direct kernel/bpf/syscall.c:3180 [inline]
bpf_link_release+0x5d/0x80 kernel/bpf/syscall.c:3187
__fput+0x3ff/0xb70 fs/file_table.c:464
task_work_run+0x14e/0x250 kernel/task_work.c:227
resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x27b/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f87ff58d169
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc7a304ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00000000000206b8 RCX: 00007f87ff58d169
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f87ff7a7ba0 R08: 0000000000000001 R09: 0000000f7a3051bf
R10: 00007f87ff400000 R11: 0000000000000246 R12: 00007f87ff7a5fac
R13: 00007f87ff7a5fa0 R14: ffffffffffffffff R15: 00007ffc7a304fe0
Modules linked in:
vkms_vblank_simulate: vblank timer overrun
---[ end trace 0000000000000000 ]---
RIP: 0010:____bpf_get_local_storage kernel/bpf/cgroup.c:1587 [inline]
RIP: 0010:bpf_get_local_storage+0x17b/0x260 kernel/bpf/cgroup.c:1569
Code: 48 8d 7b 10 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bb 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 10 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 a6 00 00 00 48 8b 1b e8 13 90 73 09 83 f8 07 89
RSP: 0018:ffffc90000718628 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81e40b82
RDX: 0000000000000000 RSI: ffffffff81e40c38 RDI: ffff88804fde0b20
RBP: ffffc90000718648 R08: 0000000000000005 R09: 0000000000000015
R10: 0000000000000015 R11: 0000000000000002 R12: ffff88802fd2a8c0
R13: ffffc90005722002 R14: 0000000000000000 R15: ffff88802fd2a8f0
FS: 00005555645ba500(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c397a9d CR3: 000000004f62a000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 00000000ffff000b DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 48 8d 7b 10 lea 0x10(%rbx),%rdi
4: 48 89 fa mov %rdi,%rdx
7: 48 c1 ea 03 shr $0x3,%rdx
b: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
f: 0f 85 bb 00 00 00 jne 0xd0
15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
1c: fc ff df
1f: 48 8b 5b 10 mov 0x10(%rbx),%rbx
23: 48 89 da mov %rbx,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 a6 00 00 00 jne 0xda
34: 48 8b 1b mov (%rbx),%rbx
37: e8 13 90 73 09 call 0x973904f
3c: 83 f8 07 cmp $0x7,%eax
3f: 89 .byte 0x89