general protection fault in detach_if

Kernel	Title	Repro	Count	Last	Reported	Patched	Status
linux-4.14	general protection fault in detach_if_pending (2)		1	1084d	1084d	0/1	auto-closed as invalid on 2021/09/04 11:36
android-54	KASAN: use-after-free Write in detach_if_pending	C	384	2h46m	439d	0/2	upstream: reported C repro on 2023/02/10 18:19
upstream	general protection fault in detach_if_pending		1	2416d	2416d	0/26	closed as invalid on 2017/10/22 12:45
linux-4.14	general protection fault in detach_if_pending		1	1663d	1662d	0/1	auto-closed as invalid on 2020/02/03 13:10
upstream	KASAN: invalid-access Write in detach_if_pending wireguard		2	1164d	1165d	0/26	auto-closed as invalid on 2021/05/17 08:51
upstream	KASAN: slab-use-after-free Write in detach_if_pending wireguard batman		2	356d	365d	0/26	auto-obsoleted due to no activity on 2023/11/08 05:10

general protection fault, probably for non-canonical address 0xdffffc00c0000000: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x0000000600000000-0x0000000600000007] CPU: 1 PID: 7014 Comm: syz-executor.4 Not tainted 5.17.0-rc7-syzkaller-00235-gaad611a868d1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__hlist_del include/linux/list.h:848 [inline] RIP: 0010:detach_timer kernel/time/timer.c:827 [inline] RIP: 0010:detach_if_pending+0x13c/0x470 kernel/time/timer.c:846 Code: df 4c 89 ea 48 8b 2b 48 c1 ea 03 80 3c 02 00 0f 85 0c 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 fa 02 00 00 48 85 ed 49 89 6d 00 74 28 e8 ec 36 RSP: 0018:ffffc9001049f630 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff88804deb4340 RCX: 0000000000000000 RDX: 00000000c0000000 RSI: ffffffff816788de RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81678b61 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000600000006 R14: 0000000000000000 R15: ffff8880769b0000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f581cb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007e29b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> del_timer kernel/time/timer.c:1208 [inline] del_timer+0xb0/0x110 kernel/time/timer.c:1198 try_to_grab_pending+0x6d/0xd0 kernel/workqueue.c:1285 __cancel_work_timer+0xa6/0x570 kernel/workqueue.c:3139 mld_report_stop_work net/ipv6/mcast.c:1110 [inline] ipv6_mc_down+0x198/0x4c0 net/ipv6/mcast.c:2725 ipv6_mc_destroy_dev+0x25/0x630 net/ipv6/mcast.c:2786 addrconf_ifdown.isra.0+0x1208/0x1660 net/ipv6/addrconf.c:3877 addrconf_notify+0xeb/0x1ba0 net/ipv6/addrconf.c:3664 notifier_call_chain+0xb5/0x200 kernel/notifier.c:84 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1919 call_netdevice_notifiers_extack net/core/dev.c:1931 [inline] call_netdevice_notifiers net/core/dev.c:1945 [inline] unregister_netdevice_many+0x964/0x18d0 net/core/dev.c:10415 ip_tunnel_delete_nets+0x39f/0x5b0 net/ipv4/ip_tunnel.c:1123 ops_exit_list+0x125/0x170 net/core/net_namespace.c:173 setup_net+0x77e/0xbb0 net/core/net_namespace.c:353 copy_net_ns+0x318/0x760 net/core/net_namespace.c:474 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226 ksys_unshare+0x445/0x920 kernel/fork.c:3058 __do_sys_unshare kernel/fork.c:3129 [inline] __se_sys_unshare kernel/fork.c:3127 [inline] __ia32_sys_unshare+0x2c/0x40 kernel/fork.c:3127 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf6ec7549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f581c5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000136 RAX: ffffffffffffffda RBX: 0000000040000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__hlist_del include/linux/list.h:848 [inline] RIP: 0010:detach_timer kernel/time/timer.c:827 [inline] RIP: 0010:detach_if_pending+0x13c/0x470 kernel/time/timer.c:846 Code: df 4c 89 ea 48 8b 2b 48 c1 ea 03 80 3c 02 00 0f 85 0c 03 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 4c 89 ea 48 c1 ea 03 <80> 3c 02 00 0f 85 fa 02 00 00 48 85 ed 49 89 6d 00 74 28 e8 ec 36 RSP: 0018:ffffc9001049f630 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff88804deb4340 RCX: 0000000000000000 RDX: 00000000c0000000 RSI: ffffffff816788de RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81678b61 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000600000006 R14: 0000000000000000 R15: ffff8880769b0000 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0063) knlGS:00000000f581cb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007e29b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: df 4c 89 ea fisttps -0x16(%rcx,%rcx,4) 4: 48 8b 2b mov (%rbx),%rbp 7: 48 c1 ea 03 shr $0x3,%rdx b: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) f: 0f 85 0c 03 00 00 jne 0x321 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 4c 8b 6b 08 mov 0x8(%rbx),%r13 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 fa 02 00 00 jne 0x32e 34: 48 85 ed test %rbp,%rbp 37: 49 89 6d 00 mov %rbp,0x0(%r13) 3b: 74 28 je 0x65 3d: e8 .byte 0xe8 3e: ec in (%dx),%al 3f: 36 ss