general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 0 PID: 13373 Comm: syz-executor.2 Not tainted 5.13.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1463 Code: 01 f0 48 89 44 24 10 e8 43 51 10 00 48 8b 44 24 08 80 38 00 0f 85 71 01 00 00 49 8b 6d 30 48 8d 45 10 48 89 04 24 48 c1 e8 03 <42> 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 42 01 00 00 8b 5d 10 31 ff RSP: 0018:ffffc90002e17b90 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffffe8ffffc88c40 RCX: ffffc9000e664000 RDX: 0000000000040000 RSI: ffffffff81648b4d RDI: ffffe8ffffc88c40 RBP: 0000000000000000 R08: 0000000000000001 R09: 00000000ffc88a00 R10: ffffffff870b6ebd R11: 0000000000000000 R12: 0000000000000000 R13: ffffe8ffffc88c40 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007f47dd0ca700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f47dd088718 CR3: 0000000016d26000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: hrtimer_try_to_cancel+0x21/0x1e0 kernel/time/hrtimer.c:1180 hrtimer_cancel+0x13/0x40 kernel/time/hrtimer.c:1295 napi_disable+0xc3/0x110 net/core/dev.c:6919 gro_cells_destroy net/core/gro_cells.c:101 [inline] gro_cells_destroy+0x10d/0x360 net/core/gro_cells.c:92 ip6_dev_free+0x15/0x60 net/ipv6/ip6_tunnel.c:248 netdev_run_todo+0x6b4/0xa80 net/core/dev.c:10582 dev_ioctl+0x27f/0xb70 net/core/dev_ioctl.c:531 sock_ioctl+0x50d/0x6a0 net/socket.c:1104 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 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:00007f47dd0ca188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9 RDX: 0000000020000080 RSI: 00000000000089f2 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffc51103fbf R14: 00007f47dd0ca300 R15: 0000000000022000 Modules linked in: ---[ end trace ba4447fc5e8a596e ]--- RIP: 0010:__seqprop_raw_spinlock_sequence include/linux/seqlock.h:276 [inline] RIP: 0010:hrtimer_active+0x6b/0x1f0 kernel/time/hrtimer.c:1463 Code: 01 f0 48 89 44 24 10 e8 43 51 10 00 48 8b 44 24 08 80 38 00 0f 85 71 01 00 00 49 8b 6d 30 48 8d 45 10 48 89 04 24 48 c1 e8 03 <42> 0f b6 04 30 84 c0 74 08 3c 03 0f 8e 42 01 00 00 8b 5d 10 31 ff RSP: 0018:ffffc90002e17b90 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffffe8ffffc88c40 RCX: ffffc9000e664000 RDX: 0000000000040000 RSI: ffffffff81648b4d RDI: ffffe8ffffc88c40 RBP: 0000000000000000 R08: 0000000000000001 R09: 00000000ffc88a00 R10: ffffffff870b6ebd R11: 0000000000000000 R12: 0000000000000000 R13: ffffe8ffffc88c40 R14: dffffc0000000000 R15: dffffc0000000000 FS: 00007f47dd0ca700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c422000 CR3: 0000000016d26000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400