==================================================================
BUG: KASAN: null-ptr-deref in test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
BUG: KASAN: null-ptr-deref in kvm_arch_check_processor_compat+0x1f8/0x750 arch/x86/kvm/x86.c:9818
Read of size 8 at addr 0000000000000060 by task syz-executor.2/8085
CPU: 1 PID: 8085 Comm: syz-executor.2 Not tainted 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
__kasan_report mm/kasan/report.c:517 [inline]
kasan_report.cold+0x5/0x37 mm/kasan/report.c:530
check_memory_region_inline mm/kasan/generic.c:186 [inline]
check_memory_region+0x141/0x190 mm/kasan/generic.c:192
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
kvm_arch_check_processor_compat+0x1f8/0x750 arch/x86/kvm/x86.c:9818
==================================================================
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 8085 Comm: syz-executor.2 Tainted: G B 5.7.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
panic+0x2e3/0x75c kernel/panic.c:221
end_report+0x4d/0x53 mm/kasan/report.c:104
__kasan_report mm/kasan/report.c:520 [inline]
kasan_report.cold+0xd/0x37 mm/kasan/report.c:530
check_memory_region_inline mm/kasan/generic.c:186 [inline]
check_memory_region+0x141/0x190 mm/kasan/generic.c:192
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:110 [inline]
kvm_arch_check_processor_compat+0x1f8/0x750 arch/x86/kvm/x86.c:9818
Shutting down cpus with NMI
Kernel Offset: disabled
Rebooting in 86400 seconds..