diff options
Diffstat (limited to 'results/classifier/118/TCG/2030')
| -rw-r--r-- | results/classifier/118/TCG/2030 | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/results/classifier/118/TCG/2030 b/results/classifier/118/TCG/2030 new file mode 100644 index 00000000..eb940dfc --- /dev/null +++ b/results/classifier/118/TCG/2030 @@ -0,0 +1,77 @@ +TCG: 0.966 +graphic: 0.872 +performance: 0.736 +files: 0.714 +network: 0.650 +device: 0.641 +vnc: 0.538 +ppc: 0.509 +semantic: 0.485 +socket: 0.480 +kernel: 0.469 +risc-v: 0.456 +PID: 0.389 +boot: 0.361 +peripherals: 0.338 +i386: 0.330 +architecture: 0.288 +VMM: 0.288 +arm: 0.262 +x86: 0.235 +KVM: 0.225 +register: 0.224 +debug: 0.203 +permissions: 0.145 +mistranslation: 0.118 +hypervisor: 0.100 +virtual: 0.076 +user-level: 0.060 +assembly: 0.043 +-------------------- +TCG: 0.953 +kernel: 0.593 +files: 0.404 +debug: 0.182 +x86: 0.147 +hypervisor: 0.080 +VMM: 0.050 +KVM: 0.047 +virtual: 0.024 +register: 0.019 +i386: 0.017 +arm: 0.015 +risc-v: 0.013 +PID: 0.011 +ppc: 0.007 +network: 0.007 +device: 0.005 +performance: 0.004 +assembly: 0.004 +semantic: 0.003 +user-level: 0.002 +socket: 0.002 +vnc: 0.002 +peripherals: 0.002 +boot: 0.001 +architecture: 0.001 +graphic: 0.001 +permissions: 0.001 +mistranslation: 0.000 + +Unreachable code +Description of problem: +There is always a false condition in the function `alloc_code_gen_buffer_splitwx_memfd` in the file `tcg/region.c`. If `buf_rw == NULL` we go to the mark __fail__: + +https://gitlab.com/qemu-project/qemu/-/blob/master/tcg/region.c?ref_type=heads#L580-L583 + +But the value of `buf_rx` is __`MAP_FAILED`__: + +https://gitlab.com/qemu-project/qemu/-/blob/master/tcg/region.c?ref_type=heads#L577 + +And this line will never be reached: + +https://gitlab.com/qemu-project/qemu/-/blob/master/tcg/region.c?ref_type=heads#L601 + +Found by Linux Verification Center (portal.linuxtesting.ru) with SVACE. + +Author A. Voronin. |