Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 UID: 0 PID: 4854 Comm: kworker/0:3 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: events cfg80211_conn_work
RIP: 0010:ether_addr_equal include/linux/etherdevice.h:355 [inline]
RIP: 0010:cfg80211_mlme_deauth+0x35a/0x940 net/wireless/mlme.c:514
Code: 8d 9c 24 b0 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 4c 8b 7c 24 28 0f 85 25 03 00 00 44 8b 23 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 2b 03 00 00 45 8b 37 48 8b 44 24 20 48
RSP: 0018:ffffc90002cdf180 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888045820e40 RCX: ffff888000b5c880
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002cdf268 R08: ffffffff8b8395d8 R09: 0000000000000003
R10: 0000000000000009 R11: ffff888000b5c880 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f25d8438198 CR3: 000000001f4b4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
cfg80211_conn_do_work+0x369/0xed0 net/wireless/sme.c:229
cfg80211_conn_work+0x2c2/0x530 net/wireless/sme.c:273
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd50 kernel/workqueue.c:3400
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ether_addr_equal include/linux/etherdevice.h:355 [inline]
RIP: 0010:cfg80211_mlme_deauth+0x35a/0x940 net/wireless/mlme.c:514
Code: 8d 9c 24 b0 00 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 4c 8b 7c 24 28 0f 85 25 03 00 00 44 8b 23 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 2b 03 00 00 45 8b 37 48 8b 44 24 20 48
RSP: 0018:ffffc90002cdf180 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888045820e40 RCX: ffff888000b5c880
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002cdf268 R08: ffffffff8b8395d8 R09: 0000000000000003
R10: 0000000000000009 R11: ffff888000b5c880 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000003 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f25d8438198 CR3: 000000001f4b4000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 8d 9c 24 b0 00 00 00 lea 0xb0(%rsp),%ebx
7: 48 89 d8 mov %rbx,%rax
a: 48 c1 e8 03 shr $0x3,%rax
e: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax
13: 84 c0 test %al,%al
15: 4c 8b 7c 24 28 mov 0x28(%rsp),%r15
1a: 0f 85 25 03 00 00 jne 0x345
20: 44 8b 23 mov (%rbx),%r12d
23: 4c 89 f8 mov %r15,%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 2b 03 00 00 jne 0x362
37: 45 8b 37 mov (%r15),%r14d
3a: 48 8b 44 24 20 mov 0x20(%rsp),%rax
3f: 48 rex.W