syzbot


panic: ker[ 58.ADDR] nel WdAiRaNgnIoNGs:t iSc PLas sNOeTr tLiOoWnE "RElDwp OcNnt T>RA=P 0 E"X IfaT i6le d0:[

Status: closed as invalid on 2019/12/12 08:53
Reported-by: syzbot+c716da859b39285ca11b@syzkaller.appspotmail.com
First crash: 1811d, last: 1811d

Sample crash report:
[  58.5198702] panic: ker[  58.5198702] nel WdAiRaNgnIoNGs:t iSc PLas sNOeTr tLiOoWnE "RElDwp OcNnt  T>RA=P 0 E"X IfaT i6le d0:
[
[    585.85.1593838780271]]   WfiARleNI "N/G:s yzSkPLa llNOerT /mLOanWaEgReErDs O/Nne tTRbsAdP E-XkubITs a6n /k0
[
  [5  8.558.33584487121]40 ]er nWeARlN/IsNyGs/: kSePrnL/ NkeOTr nL_uOiWEdRiEnfDo O.cN "T,R lAPi neE X2I2T 5 6
 [
 [  5 85.8.55444412142400] 0] 
cWpAuR1NI:N GBe: giSnPL  tNrOaTce bLOaWcEkR..ED. 
[
  58.5568019] ON TRAP EXIT 6 0
[  58.5640797] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.5640797] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.5744893] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.5744893] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.5851643] WARNING: SPL NOT LOWERED ON TRAP EXITv pa6 n0ic
[[    5588.5.855911064735]8 ]( )WA aRtN ING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.5910758] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6031293] WARNING:n eStPbsL dN:OTv pLanOiWcER+E0xD2 aONa
 [
  58.6031293] TRAP EXIT 6 0
[  58.6112869] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6112869] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6222401] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6306014] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6306014] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6408265] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6408265] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6509479] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6509479] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6611535] WARNING: SPL NOT LOWERED ON TRAP EXIT ke6r n0
_
[ [   5588.6.6616111553355]] a WsAsReNrIt(NG): a St PL NOT LOWERED ON TRAP EXIT 6 0
[  58.6739966] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6739966] WARNING: SPL NOT LOWnEReEtbD sOd:Nk eTrRnAP_a EssXeIrT t+60 0x
[ 
 [5 8 .568.73689960656]92 6]3 
W[
  58.6860592] ARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.6955939] WARNING: SPL NOT LOWERED ON TRAP EXIT 6 0
[  58.7401579] chglwpcnt() at netbsd:chglwpcnt+0x82 sys/kern/kern_uidinfo.c:225
[  58.8102512] do_setresuid() at netbsd:do_setresuid+0x408 sys/kern/kern_prot.c:358
[  58.8803479] sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
[  58.8803479] sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
[  58.9604577] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
[  58.9604577] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
[  58.9604577] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
[  58.9804846] --- syscall (number 198) ---
[  58.9904980] Skipping crash dump on recursive panic
[  58.9904980] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:153:24, member access within misaligned address 0x2 for type 'struct x86_64_frame' which requires 8 byte alignment

[  59.0205430] Faulted in mid-traceback; aborting...
[  59.0205430] fatal breakpoint trap in supervisor mode
[  59.0305491] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x20000080 ilevel 0x8 rsp 0xffffb380b341dfe0
[  59.0405621] curlwp 0xffffead551e1e940 pid 73.5 lowest kstack 0xffffb380b341b2c0
Stopped in pid 73.5 (syz-executor.0) at netbsd:breakpoint+0x5:  leave
?
breakpoint() at netbsd:breakpoint+0x5
db_panic() at netbsd:db_panic+0xd1 sys/ddb/db_panic.c:67
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
isAlreadyReported() at netbsd:isAlreadyReported
HandleTypeMismatch.part.1() at netbsd:HandleTypeMismatch.part.1+0xcc
HandleTypeMismatch() at netbsd:HandleTypeMismatch+0x7b sys/../common/lib/libc/misc/ubsan.c:408
db_nextframe() at netbsd:db_nextframe+0x6f6 sys/arch/amd64/amd64/db_machdep.c:153
db_stack_trace_print() at netbsd:db_stack_trace_print+0x2c4 sys/arch/x86/x86/db_trace.c:277
db_panic() at netbsd:db_panic+0x8b x86_curcpu sys/arch/amd64/compile/obj/GENERIC_SYZKALLER/./machine/cpu.h:67 [inline]
db_panic() at netbsd:db_panic+0x8b sys/ddb/db_panic.c:57
vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336
kern_assert() at netbsd:kern_assert+0x63
chglwpcnt() at netbsd:chglwpcnt+0x82 sys/kern/kern_uidinfo.c:225
do_setresuid() at netbsd:do_setresuid+0x408 sys/kern/kern_prot.c:358
sys___syscall() at netbsd:sys___syscall+0x1c8 sy_call sys/sys/syscallvar.h:65 [inline]
sys___syscall() at netbsd:sys___syscall+0x1c8 sys/kern/sys_syscall.c:77
syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline]
syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline]
syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138
--- syscall (number 198) ---
[  59.0405621] Skipping crash dump on recursive panic
[  59.0405621] panic: UBSan: Undefined Behavior in /syzkaller/managers/netbsd-kubsan/kernel/sys/arch/amd64/amd64/db_machdep.c:154:14, member access within misaligned address 0x2 for type 'struct x86_64_frame' which requires 8 byte alignment

[  59.0405621] Faulted in mid-traceback; aborting...
[  59.0405621] fatal breakpoint trap in supervisor mode
[  59.0405621] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x20000080 ilevel 0x8 rsp 0xffffb380b341cce0
[  59.0405621] curlwp 0xffffead551e1e940 pid 73.5 lowest kstack 0xffffb380b341b2c0
Stopped in pid 73.5 (syz-executor.0) at netbsd:breakpoint+0x5:  leave

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/12/07 03:18 netbsd fb02a8eea0ec 85f26751 .config console log report ci2-netbsd-kubsan
* Struck through repros no longer work on HEAD.