general protection fault in __call

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	general protection fault in __call_rcu (2)				1	827d	827d	0/1	auto-closed as invalid on 2022/05/13 11:33
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc03631d3f R14: 00007f49ad47a300 R15: 0000000000022000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 19830 Comm: syz-executor.5 Not tainted 4.19.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__call_rcu.constprop.0+0x68/0x7f0 kernel/rcu/tree.c:2988
Code: 48 c7 c6 80 5d f8 89 e8 46 85 25 02 45 85 ed 0f 85 39 02 00 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fa 05 00 00 48 89 da 4c 89 73 08 48 b8 00 00 00
RSP: 0018:ffff88809d5cf628 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000028 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffff88801fd10c30 RDI: 0000000000000030
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89f88180
R13: 0000000000000000 R14: 0000000000000028 R15: 0000000000000002
FS:  00007f49ad47a700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f287403c0b8 CR3: 00000000b4c86000 CR4: 00000000001426e0
DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_stop_mesh+0x176/0x370 net/mac80211/mesh.c:939
 ieee80211_start_mesh+0x2f8/0x330 net/mac80211/mesh.c:905
 ieee80211_join_mesh+0x7f0/0x990 net/mac80211/cfg.c:2005
 rdev_join_mesh net/wireless/rdev-ops.h:336 [inline]
 __cfg80211_join_mesh+0x5be/0x1340 net/wireless/mesh.c:209
 cfg80211_netdev_notifier_call+0x165c/0x1aa0 net/wireless/core.c:1271
 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93
 call_netdevice_notifiers net/core/dev.c:1762 [inline]
 __dev_notify_flags+0x110/0x2b0 net/core/dev.c:7709
 dev_change_flags+0xf0/0x140 net/core/dev.c:7745
 dev_ifsioc+0x2ce/0x8c0 net/core/dev_ioctl.c:237
 dev_ioctl+0x1ab/0xc50 net/core/dev_ioctl.c:488
 sock_do_ioctl+0x148/0x2d0 net/socket.c:973
 sock_ioctl+0x2ef/0x5d0 net/socket.c:1074
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x466459
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:00007f49ad47a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000020000040 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007f49ad47a1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffc03631d3f R14: 00007f49ad47a300 R15: 0000000000022000
Modules linked in:
---[ end trace b693240f8d9d9b04 ]---
RIP: 0010:__call_rcu.constprop.0+0x68/0x7f0 kernel/rcu/tree.c:2988
Code: 48 c7 c6 80 5d f8 89 e8 46 85 25 02 45 85 ed 0f 85 39 02 00 00 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 fa 05 00 00 48 89 da 4c 89 73 08 48 b8 00 00 00
RSP: 0018:ffff88809d5cf628 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000028 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffff88801fd10c30 RDI: 0000000000000030
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89f88180
R13: 0000000000000000 R14: 0000000000000028 R15: 0000000000000002
FS:  00007f49ad47a700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd44b693000 CR3: 00000000b4c86000 CR4: 00000000001426e0
DR0: 0000000000000101 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400