general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 7298 Comm: syz-executor.4 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__switch_to_asm+0x8/0x40 arch/x86/entry/entry_64.S:233
Code: 24 28 48 c7 84 c4 48 01 00 00 00 00 00 00 8b 44 24 3c 89 44 24 38 e9 2f fd ff ff cc cc cc cc cc cc cc 55 53 41 54 41 55 41 56 <00> 00 00 00 a7 d8 14 00 00 48 8b a6 d8 14 00 00 48 8b 9e e0 04 00
RSP: 0018:ffffc900061d7b80 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000
RDX: 1ffff11015cc6bc2 RSI: ffff8880520f4280 RDI: ffff88805561a000
RBP: ffffc900061d7c80 R08: 0000000000000001 R09: ffff88805561a8c8
R10: fffffbfff155da49 R11: 0000000000000000 R12: ffff88805561a000
R13: ffff8880ae635e00 R14: ffff8880520f4280 R15: ffff88805561a430
FS:  0000000001ab5940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000c9fda8 CR3: 000000005205d000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 context_switch kernel/sched/core.c:3458 [inline]
 __schedule+0x91f/0x2250 kernel/sched/core.c:4215
 schedule+0xd0/0x2a0 kernel/sched/core.c:4290
 freezable_schedule include/linux/freezer.h:172 [inline]
 do_nanosleep+0x222/0x650 kernel/time/hrtimer.c:1879
 hrtimer_nanosleep+0x1f6/0x430 kernel/time/hrtimer.c:1932
 __do_sys_nanosleep kernel/time/hrtimer.c:1966 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1953 [inline]
 __x64_sys_nanosleep+0x1dc/0x260 kernel/time/hrtimer.c:1953
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45a700
Code: Bad RIP value.
RSP: 002b:0000000000c9fd88 EFLAGS: 00000246 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000dd8ba RCX: 000000000045a700
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000c9fd90
RBP: 0000000000000556 R08: 0000000000000001 R09: 0000000001ab5940
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a
R13: 0000000000c9fde0 R14: 00000000000dd8af R15: 0000000000c9fdf0
Modules linked in:
---[ end trace 60deb5a9db3829f0 ]---
RIP: 0010:__switch_to_asm+0x8/0x40 arch/x86/entry/entry_64.S:233
Code: 24 28 48 c7 84 c4 48 01 00 00 00 00 00 00 8b 44 24 3c 89 44 24 38 e9 2f fd ff ff cc cc cc cc cc cc cc 55 53 41 54 41 55 41 56 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
RSP: 0018:ffffc900061d7b80 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: ffff8880ae635e18 RCX: 0000000000000000
RDX: 1ffff11015cc6bc2 RSI: ffff8880520f4280 RDI: ffff88805561a000
RBP: ffffc900061d7c80 R08: 0000000000000001 R09: ffff88805561a8c8
R10: fffffbfff155da49 R11: 0000000000000000 R12: ffff88805561a000
R13: ffff8880ae635e00 R14: ffff8880520f4280 R15: ffff88805561a430
FS:  0000000001ab5940(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000c9fda8 CR3: 000000005205d000 CR4: 00000000001426f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400