Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.35' (ECDSA) to the list of known hosts. 2020/07/08 10:53:45 fuzzer started 2020/07/08 10:53:45 dialing manager at 10.128.0.26:45977 2020/07/08 10:53:46 syscalls: 3123 2020/07/08 10:53:46 code coverage: enabled 2020/07/08 10:53:46 comparison tracing: enabled 2020/07/08 10:53:46 extra coverage: enabled 2020/07/08 10:53:46 setuid sandbox: enabled 2020/07/08 10:53:46 namespace sandbox: enabled 2020/07/08 10:53:46 Android sandbox: /sys/fs/selinux/policy does not exist 2020/07/08 10:53:46 fault injection: enabled 2020/07/08 10:53:46 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/07/08 10:53:46 net packet injection: enabled 2020/07/08 10:53:46 net device setup: enabled 2020/07/08 10:53:46 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/07/08 10:53:46 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/07/08 10:53:46 USB emulation: enabled syzkaller login: [ 55.088402][ C0] ================================================================== [ 55.096600][ C0] BUG: KASAN: out-of-bounds in csd_lock_record+0xcb/0xe0 [ 55.103634][ C0] Read of size 8 at addr ffffc90001637950 by task syz-fuzzer/6801 [ 55.111413][ C0] [ 55.113734][ C0] CPU: 0 PID: 6801 Comm: syz-fuzzer Not tainted 5.8.0-rc3-next-20200703-syzkaller #0 [ 55.123165][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.133200][ C0] Call Trace: [ 55.136480][ C0] dump_stack+0x18f/0x20d [ 55.140823][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.145580][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.150343][ C0] print_address_description.constprop.0.cold+0x5/0x436 [ 55.157273][ C0] ? lock_is_held_type+0xb0/0xe0 [ 55.162206][ C0] ? lockdep_hardirqs_off+0x66/0xa0 [ 55.167392][ C0] ? vprintk_func+0x97/0x1a6 [ 55.171971][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.176742][ C0] kasan_report.cold+0x1f/0x37 [ 55.181594][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.186344][ C0] csd_lock_record+0xcb/0xe0 [ 55.190922][ C0] flush_smp_call_function_queue+0x285/0x730 [ 55.196889][ C0] ? flush_tlb_func_common.constprop.0+0x420/0x420 [ 55.203380][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.209518][ C0] __sysvec_call_function_single+0x98/0x490 [ 55.215397][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.221452][ C0] sysvec_call_function_single+0x4f/0x120 [ 55.227160][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.233297][ C0] asm_sysvec_call_function_single+0x12/0x20 [ 55.239260][ C0] RIP: 0033:0x410892 [ 55.243158][ C0] Code: Bad RIP value. [ 55.247208][ C0] RSP: 002b:000000c00021d7b0 EFLAGS: 00000296 [ 55.253256][ C0] RAX: ebdc7d61a00f8af0 RBX: 000000c001500498 RCX: 0000000000000000 [ 55.261248][ C0] RDX: 00000000008fa9c0 RSI: 000000c000112bd0 RDI: 0000000000000038 [ 55.269204][ C0] RBP: 000000c00021d7e0 R08: 0000000000000000 R09: 0000000000000004 [ 55.277158][ C0] R10: 000000c001500480 R11: 0000000037db250c R12: 0000000000000003 [ 55.285114][ C0] R13: 0000000000000001 R14: 0000000000000021 R15: ffffffffffffffff [ 55.293079][ C0] [ 55.295388][ C0] [ 55.297703][ C0] Memory state around the buggy address: [ 55.303318][ C0] ffffc90001637800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 55.311364][ C0] ffffc90001637880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 55.319408][ C0] >ffffc90001637900: 00 00 00 00 f1 f1 f1 f1 00 00 00 00 f3 f3 f3 f3 [ 55.327451][ C0] ^ [ 55.334108][ C0] ffffc90001637980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 55.342174][ C0] ffffc90001637a00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 55.350226][ C0] ================================================================== [ 55.358274][ C0] Disabling lock debugging due to kernel taint [ 55.364411][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 55.370989][ C0] CPU: 0 PID: 6801 Comm: syz-fuzzer Tainted: G B 5.8.0-rc3-next-20200703-syzkaller #0 [ 55.381823][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.391866][ C0] Call Trace: [ 55.395152][ C0] dump_stack+0x18f/0x20d [ 55.399471][ C0] ? csd_lock_record+0x30/0xe0 [ 55.404228][ C0] panic+0x2e3/0x75c [ 55.410020][ C0] ? __warn_printk+0xf3/0xf3 [ 55.414600][ C0] ? _raw_spin_unlock_irqrestore+0x5b/0xe0 [ 55.420388][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.425139][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.429892][ C0] end_report+0x4d/0x53 [ 55.434030][ C0] kasan_report.cold+0xd/0x37 [ 55.438695][ C0] ? csd_lock_record+0xcb/0xe0 [ 55.443441][ C0] csd_lock_record+0xcb/0xe0 [ 55.448014][ C0] flush_smp_call_function_queue+0x285/0x730 [ 55.453981][ C0] ? flush_tlb_func_common.constprop.0+0x420/0x420 [ 55.460463][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.466513][ C0] __sysvec_call_function_single+0x98/0x490 [ 55.472387][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.478432][ C0] sysvec_call_function_single+0x4f/0x120 [ 55.484135][ C0] ? asm_sysvec_call_function_single+0xa/0x20 [ 55.490267][ C0] asm_sysvec_call_function_single+0x12/0x20 [ 55.496311][ C0] RIP: 0033:0x410892 [ 55.500185][ C0] Code: Bad RIP value. [ 55.504230][ C0] RSP: 002b:000000c00021d7b0 EFLAGS: 00000296 [ 55.510275][ C0] RAX: ebdc7d61a00f8af0 RBX: 000000c001500498 RCX: 0000000000000000 [ 55.518327][ C0] RDX: 00000000008fa9c0 RSI: 000000c000112bd0 RDI: 0000000000000038 [ 55.526277][ C0] RBP: 000000c00021d7e0 R08: 0000000000000000 R09: 0000000000000004 [ 55.534235][ C0] R10: 000000c001500480 R11: 0000000037db250c R12: 0000000000000003 [ 55.542202][ C0] R13: 0000000000000001 R14: 0000000000000021 R15: ffffffffffffffff [ 55.551689][ C0] Kernel Offset: disabled [ 55.556007][ C0] Rebooting in 86400 seconds..