Sat Nov 30 15:58:46 UTC 2019


NetBSD/amd64 (ci2-netbsd-kubsan-test-1.c.syzkaller.internal) (console)



login: Nov 30 15:58:48 ci2-netbsd-kubsan-test-1 getty[499]: /dev/ttyE1: Device not configured
Nov 30 15:58:48 ci2-netbsd-kubsan-test-1 getty[498]: /dev/ttyE3: Device not configured
Nov 30 15:58:48 ci2-netbsd-kubsan-test-1 getty[451]: /dev/ttyE2: Device not configured
Warning: Permanently added '10.128.0.20' (ECDSA) to the list of known hosts.
2019/11/30 15:58:57 fuzzer started
2019/11/30 15:58:57 connecting to host at 10.128.0.105:35503
2019/11/30 15:58:57 checking machine...
2019/11/30 15:58:57 checking revisions...
2019/11/30 15:58:57 testing simple program...
[  38.9474168] Reader / writer lock error: rw_vector_tryenter,585: assertion failed: (op != RW_READER && RW_OWNER(rw) == curthread) || (op == RW_READER && RW_COUNT(rw) != 0)

[  38.9474168] lock address : 0xffffeb4dacda92f8 type     :     sleep/adaptive
[  38.9474168] initialized  : 0xffffffff82268c0b
[  38.9474168] shared holds :                  1 exclusive:                  1
[  38.9474168] shares wanted:                  0 exclusive:                  0
[  38.9474168] current cpu  :                  0 last held:                  0
[  38.9474168] current lwp  : 0xffffeb4dab5f52c0 last held: 0xffffeb4dab5f52c0
[  38.9474168] last locked* : 0xffffffff8225b72d unlocked : 0xffffffff822450e7
[  38.9474168] owner/count  : 0xffffeb4dab5f52d0 flags    : 0x0000000000000004

[  38.9474168] Turnstile chain at 0xffffffff85ea9318 with mutex 0xffffeb4eba2324c0.
[  38.9474168] => No active turnstile for this lock.

[  38.9932763] 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)
[  39.0108885] cpu0: Begin traceback...
[  39.0275437] vpanic() at netbsd:vpanic+0x2aa
[  39.0876468] snprintf() at netbsd:snprintf
[  39.1477497] lockdebug_abort1() at netbsd:lockdebug_abort1+0x16a
[  39.2178692] rw_abort() at netbsd:rw_abort+0x50
[  39.2879907] rw_tryenter() at netbsd:rw_tryenter+0x13c
[  39.3380768] vm_map_lock_try() at netbsd:vm_map_lock_try+0x3c
[  39.3981817] uvm_map_prepare() at netbsd:uvm_map_prepare+0xc0
[  39.4582884] uvm_map() at netbsd:uvm_map+0xa4
[  39.5284060] uvm_mmap.part.0() at netbsd:uvm_mmap.part.0+0x32a
[  39.5885094] sys_mmap() at netbsd:sys_mmap+0x809
[  39.6486109] sys___syscall() at netbsd:sys___syscall+0x1c8
[  39.7087158] syscall() at netbsd:syscall+0x29a
[  39.7292047] --- syscall (number 198) ---
[  39.7292047] Skipping crash dump on recursive panic
[  39.7292047] 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

[  39.7603613] Faulted in mid-traceback; aborting...
[  39.7603613] fatal breakpoint trap in supervisor mode
[  39.7703289] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x76d566a00000 ilevel 0 rsp 0xffffaa00a690acc0
[  39.7815192] curlwp 0xffffeb4dab5f52c0 pid 45.3 lowest kstack 0xffffaa00a69082c0
Stopped in pid 45.3 (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) ---
[  39.7815192] Skipping crash dump on recursive panic
[  39.7815192] 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

[  39.7815192] Faulted in mid-traceback; aborting...
[  39.7815192] fatal breakpoint trap in supervisor mode
[  39.7815192] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x282 cr2 0x76d566a00000 ilevel 0x8 rsp 0xffffaa00a69099c0
[  39.7815192] curlwp 0xffffeb4dab5f52c0 pid 45.3 lowest kstack 0xffffaa00a69082c0
Stopped in pid 45.3 (syz-executor.0) at netbsd:breakpoint+0x5:  leave