Sat Nov 30 02:12:07 UTC 2019


NetBSD/amd64 (ci2-netbsd-kubsan-test-0.c.syzkaller.internal) (console)



login: Nov 30 02:12:09 ci2-netbsd-kubsan-test-0 getty[464]: /dev/ttyE3: Device not configured
Nov 30 02:12:09 ci2-netbsd-kubsan-test-0 getty[284]: /dev/ttyE1: Device not configured
Nov 30 02:12:09 ci2-netbsd-kubsan-test-0 getty[566]: /dev/ttyE2: Device not configured
Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts.
2019/11/30 02:12:18 fuzzer started
2019/11/30 02:12:18 connecting to host at 10.128.0.105:34351
2019/11/30 02:12:18 checking machine...
2019/11/30 02:12:18 checking revisions...
2019/11/30 02:12:18 testing simple program...
[  37.9158420] Reader / writer lock error: rw_vector_tryenter,585: assertion failed: (op != RW_READER && RW_OWNER(rw) == curthread) || (op == RW_READER && RW_COUNT(rw) != 0)

[  37.9158420] lock address : 0xffffc9558f009a18 type     :     sleep/adaptive
[  37.9158420] initialized  : 0xffffffff82268b8b
[  37.9158420] shared holds :                  1 exclusive:                  1
[  37.9158420] shares wanted:                  0 exclusive:                  0
[  37.9158420] current cpu  :                  0 last held:                  0
[  37.9158420] current lwp  : 0xffffc95592e1dba0 last held: 0xffffc95592e1dba0
[  37.9158420] last locked* : 0xffffffff8225b6ad unlocked : 0xffffffff82245067
[  37.9158420] owner/count  : 0xffffc95592e1dbb0 flags    : 0x0000000000000004

[  37.9158420] Turnstile chain at 0xffffffff85ea9400 with mutex 0xffffc9569e432c00.
[  37.9158420] => No active turnstile for this lock.

[  37.9615453] panic: LOCKDEBUG: Reader / writer lock error: rw_vector_tryenter,585: assertion failed: (op != RW_READER && RW_OWNER(rw) == curthread) || (op == RW_READER && RW_COUNT(rw) != 0)
[  37.9758962] cpu1: Begin traceback...
[  37.9959288] vpanic() at netbsd:vpanic+0x2aa
[  38.0560116] snprintf() at netbsd:snprintf
[  38.1160983] lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a
[  38.1861914] rw_abort() at netbsd:rw_abort+0x50
[  38.2462772] rw_tryenter() at netbsd:rw_tryenter+0x13c
[  38.3063611] vm_map_lock_try() at netbsd:vm_map_lock_try+0x3c
[  38.3664487] uvm_map_prepare() at netbsd:uvm_map_prepare+0xc0
[  38.4165183] uvm_map() at netbsd:uvm_map+0xa4
[  38.4866142] uvm_mmap.part.0() at netbsd:uvm_mmap.part.0+0x32a
[  38.5466978] sys_mmap() at netbsd:sys_mmap+0x809
[  38.6067824] sys___syscall() at netbsd:sys___syscall+0x1c8
[  38.6668679] syscall() at netbsd:syscall+0x29a
[  38.6868956] --- syscall (number 198) ---
[  38.6868956] Skipping crash dump on recursive panic
[  38.6969075] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x7 for type 'struct x86_64_frame' which requires 8 byte alignment

[  38.7169352] Faulted in mid-traceback; aborting...
[  38.7169352] fatal breakpoint trap in supervisor mode
[  38.7269481] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x775c19400000 ilevel 0 rsp 0xffff9c00a6b8ccc0
[  38.7369619] curlwp 0xffffc95592e1dba0 pid 492.3 lowest kstack 0xffff9c00a6b8a2c0
Stopped in pid 492.3 (syz-executor.0) 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
snprintf() at netbsd:snprintf
lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a
rw_abort() at netbsd:rw_abort+0x50
rw_tryenter() at netbsd:rw_tryenter+0x13c
vm_map_lock_try() at netbsd:vm_map_lock_try+0x3c
uvm_map_prepare() at netbsd:uvm_map_prepare+0xc0
uvm_map() at netbsd:uvm_map+0xa4
uvm_mmap.part.0() at netbsd:uvm_mmap.part.0+0x32a
sys_mmap() at netbsd:sys_mmap+0x809
sys___syscall() at netbsd:sys___syscall+0x1c8
syscall() at netbsd:syscall+0x29a
--- syscall (number 198) ---
[  38.7469769] Skipping crash dump on recursive panic
[  38.7469769] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x7 for type 'struct x86_64_frame' which requires 8 byte alignment

[  38.7469769] Faulted in mid-traceback; aborting...
[  38.7469769] fatal breakpoint trap in supervisor mode
[  38.7469769] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x775c19400000 ilevel 0x8 rsp 0xffff9c00a6b8b9c0
[  38.7469769] curlwp 0xffffc95592e1dba0 pid 492.3 lowest kstack 0xffff9c00a6b8a2c0
Stopped in pid 492.3 (syz-executor.0) at        netbsd:breakpoint+0x5:  leave