Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 3 UID: 0 PID: 26353 Comm: syz.1.6674 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #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:__xsk_map_flush+0x4c/0x310 net/xdp/xsk.c:392
Code: df 48 c1 ea 03 80 3c 02 00 0f 85 cd 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 1e 48 8d ab e8 fa ff ff 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 9b 02 00 00 48 8b 03 49 39 de 4c 8d a8 e8 fa ff
RSP: 0018:ffffc90000908c80 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff88f93aaf
RDX: 0000000000000001 RSI: ffffffff8af05b36 RDI: ffffc90003627a78
RBP: fffffffffffffaf0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000010 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88806b340608 R14: ffffc90003627a78 R15: ffffc90003627a78
FS: 00007f9e5a15c6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000265c8000 CR4: 0000000000350ef0
DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
xdp_do_check_flushed+0x175/0x4e0 net/core/filter.c:4315
__napi_poll.constprop.0+0xd1/0x550 net/core/dev.c:6774
napi_poll net/core/dev.c:6840 [inline]
net_rx_action+0xa92/0x1010 net/core/dev.c:6962
handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:212
Code: 24 74 0f f6 c4 01 74 35 8b 82 1c 16 00 00 85 c0 74 2b 8b 82 f8 15 00 00 83 f8 02 75 20 48 8b 8a 00 16 00 00 8b 92 fc 15 00 00 <48> 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 48 89 34 c1 c3 cc cc
RSP: 0018:ffffc90003627800 EFLAGS: 00000246
RAX: 0000000000000002 RBX: 00000000000000f5 RCX: ffffc90024471000
RDX: 0000000000040000 RSI: ffffffff8481533b RDI: 0000000000000007
RBP: 0000000000000035 R08: 0000000000000007 R09: 0000000000000000
R10: 0020000000000000 R11: 0000000000000000 R12: 00000000000000f5
R13: ffff888020853680 R14: dffffc0000000000 R15: ffff888020853678
_find_next_bit+0x11b/0x150 lib/find_bit.c:145
find_next_bit include/linux/find.h:69 [inline]
ebitmap_next_positive security/selinux/ss/ebitmap.h:72 [inline]
context_struct_compute_av+0x86a/0x1270 security/selinux/ss/services.c:651
security_compute_av+0x48f/0xfd0 security/selinux/ss/services.c:1140
avc_compute_av+0x86/0x5c0 security/selinux/avc.c:990
avc_perm_nonode+0xaa/0x170 security/selinux/avc.c:1114
avc_has_perm_noaudit+0x2d2/0x3a0 security/selinux/avc.c:1157
avc_has_perm+0xc1/0x1c0 security/selinux/avc.c:1192
selinux_bpf+0xd7/0x130 security/selinux/hooks.c:6846
security_bpf+0x75/0xc0 security/security.c:5434
__sys_bpf+0x24c/0x4a20 kernel/bpf/syscall.c:5686
__do_sys_bpf kernel/bpf/syscall.c:5817 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5815 [inline]
__x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5815
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9e59377299
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:00007f9e5a15c048 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f9e59505f80 RCX: 00007f9e59377299
RDX: 0000000000000090 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00007f9e593e48e6 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f9e59505f80 R15: 00007ffd97caee68
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__xsk_map_flush+0x4c/0x310 net/xdp/xsk.c:392
Code: df 48 c1 ea 03 80 3c 02 00 0f 85 cd 02 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 1e 48 8d ab e8 fa ff ff 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 9b 02 00 00 48 8b 03 49 39 de 4c 8d a8 e8 fa ff
RSP: 0018:ffffc90000908c80 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000008 RCX: ffffffff88f93aaf
RDX: 0000000000000001 RSI: ffffffff8af05b36 RDI: ffffc90003627a78
RBP: fffffffffffffaf0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000010 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88806b340608 R14: ffffc90003627a78 R15: ffffc90003627a78
FS: 00007f9e5a15c6c0(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000265c8000 CR4: 0000000000350ef0
DR0: 0000000000002800 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 48 c1 ea 03 shr $0x3,%rdx
4: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
8: 0f 85 cd 02 00 00 jne 0x2db
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 49 8b 1e mov (%r14),%rbx
1b: 48 8d ab e8 fa ff ff lea -0x518(%rbx),%rbp
22: 48 89 da mov %rbx,%rdx
25: 48 c1 ea 03 shr $0x3,%rdx
* 29: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2d: 0f 85 9b 02 00 00 jne 0x2ce
33: 48 8b 03 mov (%rbx),%rax
36: 49 39 de cmp %rbx,%r14
39: 4c rex.WR
3a: 8d .byte 0x8d
3b: a8 e8 test $0xe8,%al
3d: fa cli
3e: ff .byte 0xff