Mon Nov 18 20:33:01 UTC 2019


NetBSD/amd64 (ci2-netbsd-kubsan-3.c.syzkaller.internal) (console)



login: Nov 18 20:33:03 ci2-netbsd-kubsan-3 getty[478]: /dev/ttyE1: Device not configured
Nov 18 20:33:03 ci2-netbsd-kubsan-3 getty[421]: /dev/ttyE3: Device not configured
Nov 18 20:33:03 ci2-netbsd-kubsan-3 getty[381]: /dev/ttyE2: Device not configured
Warning: Permanently added '10.128.0.212' (ECDSA) to the list of known hosts.
executing program
executing program
[  40.6720108] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/process_machdep.c:157:2, member access within misaligned address 0xffffd400a6d378c8 for type 'struct fpreg' which requires 16 byte alignment

[  40.6866644] cpu0: Begin traceback...
[  40.7020494] vpanic() at netbsd:vpanic+0x2aa
[  40.7421232] isAlreadyReported() at netbsd:isAlreadyReported
[  40.7922043] HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
[  40.8422916] HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b
[  40.8823586] process_read_fpregs() at netbsd:process_read_fpregs+0x3d
[  40.9324441] proc_regio() at netbsd:proc_regio+0x164
[  40.9825284] process_dofpregs() at netbsd:process_dofpregs+0xa7
[  41.0225974] do_ptrace() at netbsd:do_ptrace+0x12be
[  41.0626683] sys_ptrace() at netbsd:sys_ptrace+0x4f
[  41.1127547] sys_syscall() at netbsd:sys_syscall+0x1c8
[  41.1528233] syscall() at netbsd:syscall+0x29a
[  41.1728599] --- syscall (number 0) ---
[  41.1728599] Skipping crash dump on recursive panic
[  41.1848752] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0xffffffff for type 'struct x86_64_frame' which requires 8 byte alignment

[  41.2073251] Faulted in mid-traceback; aborting...
[  41.2073251] fatal breakpoint trap in supervisor mode
[  41.2156062] trap type 1 code 0 rip 0xffffffff8021dddd cs 0x8 rflags 0x286 cr2 0x7f7fff0b5638 ilevel 0 rsp 0xffffd400a6d364b0
[  41.2287038] curlwp 0xffff8205b310e780 pid 603.1 lowest kstack 0xffffd400a6d342c0
Stopped in pid 603.1 (syz-executor5751) at      netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0x109
vpanic() at netbsd:vpanic+0x2aa
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b
db_nextframe() at netbsd:db_nextframe+0x6f6
db_stack_trace_print() at netbsd:db_stack_trace_print+0x2c4
db_panic() at netbsd:db_panic+0xa3
vpanic() at netbsd:vpanic+0x2aa
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b
process_read_fpregs() at netbsd:process_read_fpregs+0x3d
proc_regio() at netbsd:proc_regio+0x164
process_dofpregs() at netbsd:process_dofpregs+0xa7
do_ptrace() at netbsd:do_ptrace+0x12be
sys_ptrace() at netbsd:sys_ptrace+0x4f
sys_syscall() at netbsd:sys_syscall+0x1c8
syscall() at netbsd:syscall+0x29a
--- syscall (number 0) ---
[  41.2361716] Skipping crash dump on recursive panic
[  41.2361716] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0xffffffff for type 'struct x86_64_frame' which requires 8 byte alignment

[  41.2361716] Faulted in mid-traceback; aborting...
[  41.2361716] fatal breakpoint trap in supervisor mode
[  41.2361716] trap type 1 code 0 rip 0xffffffff8021dddd cs 0x8 rflags 0x286 cr2 0x7f7fff0b5638 ilevel 0x8 rsp 0xffffd400a6d351b0
[  41.2361716] curlwp 0xffff8205b310e780 pid 603.1 lowest kstack 0xffffd400a6d342c0
Stopped in pid 603.1 (syz-executor5751) at      netbsd:breakpoint+0x5:  leave