[ 78.0980180] panic: kernel diagnostic assertion "uvm_page_locked_p(pg)" failed: file "/syzkaller/managers/netbsd-kubsan/kernel/sys/arch/x86/x86/pmap.c", line 3528 [ 78.1166126] cpu0: Begin traceback... [ 78.1425162] vpanic() at netbsd:vpanic+0x2aa sys/kern/subr_prf.c:336 [ 78.2093042] kern_assert() at netbsd:kern_assert+0x63 [ 78.2872189] pmap_remove_pte() at netbsd:pmap_remove_pte+0x5a7 pmap_remove_pte sys/arch/x86/x86/pmap.c:3528 [inline] [ 78.2872189] pmap_remove_pte() at netbsd:pmap_remove_pte+0x5a7 sys/arch/x86/x86/pmap.c:3475 [ 78.3540112] pmap_remove() at netbsd:pmap_remove+0x36d pmap_remove_ptes sys/arch/x86/x86/pmap.c:3434 [inline] [ 78.3540112] pmap_remove() at netbsd:pmap_remove+0x36d sys/arch/x86/x86/pmap.c:3633 [ 78.3985290] Mutex error: mutex_vector_enter,731: assertion failed: MUTEX_OWNER(mtx->mtx_owner) == curthread [ 78.4096675] lock address : 0xfffffe5c232cfc00 type : sleep/adaptive [ 78.4207956] initialized : 0xffffffff822f2e73 [ 7[8. 4 7208.7495206]79 s56ha] ruevdm h_uolndmasp :_ r em o ve ( ) at 0 exclusive: 0 [ 78.4372472] shares wanted: 0 exclusive: n et b sd : u v m_ u n m a p _ re 0m[ [ 78 .748.443045390659]6 ]ov ecu+r0rx7ecnt1 [ 78.4559853] cpu : 1 last held: 1 [ 78.4559853] current lwp : 0xfffffe5c23623200 last held: 000000000000000000 [ 78.4653125] last locked : 0xffffffff822fd4af unlocked*: 0xffffffff822fd978 [ 78.4764490] owner field : 0xfffffe5c188d4900 wait/spin: 0/0 [ 78.4875782] Turnstile chain at 0xffffffff85eb7b80 with mutex 0xfffffe5d1ec32e00. [ 78.4987103] => No active turnstile for this lock. [ 78.5098368] uvmspace_free() at netbsd:uvmspace_free+0x2e8 sys/uvm/uvm_map.c:4304 [ 78.5766292] uvm_proc_exit() at netbsd:uvm_proc_exit+0xf6 sys/uvm/uvm_glue.c:443 [ 78.6434171] exit1() at netbsd:exit1+0x4cb sys/kern/kern_exit.c:332 [ 78.7213295] sys_exit() at netbsd:sys_exit+0xba sys/kern/kern_exit.c:179 [ 78.7992441] syscall() at netbsd:syscall+0x29a sy_call sys/sys/syscallvar.h:65 [inline] [ 78.7992441] syscall() at netbsd:syscall+0x29a sy_invoke sys/sys/syscallvar.h:94 [inline] [ 78.7992441] syscall() at netbsd:syscall+0x29a sys/arch/x86/x86/syscall.c:138 [ 78.8215226] --- syscall (number 1) --- [ 78.8215226] Skipping crash dump on recursive panic [ 78.8336410] 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 [ 78.8576496] Faulted in mid-traceback; aborting... [ 78.8576496] fatal breakpoint trap in supervisor mode [ 78.8668698] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x60b2a0 ilevel 0 rsp 0xffff8080b3b0dda0 [ 78.8822423] curlwp 0xfffffe5c2302d260 pid 867.1 lowest kstack 0xffff8080b3b0b2c0 Stopped in pid 867.1 (syz-executor.1) 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 pmap_remove_pte() at netbsd:pmap_remove_pte+0x5a7 pmap_remove_pte sys/arch/x86/x86/pmap.c:3528 [inline] pmap_remove_pte() at netbsd:pmap_remove_pte+0x5a7 sys/arch/x86/x86/pmap.c:3475 pmap_remove() at netbsd:pmap_remove+0x36d pmap_remove_ptes sys/arch/x86/x86/pmap.c:3434 [inline] pmap_remove() at netbsd:pmap_remove+0x36d sys/arch/x86/x86/pmap.c:3633 uvm_unmap_remove() at netbsd:uvm_unmap_remove+0x7c1 sys/uvm/uvm_map.c:2317 uvmspace_free() at netbsd:uvmspace_free+0x2e8 sys/uvm/uvm_map.c:4304 uvm_proc_exit() at netbsd:uvm_proc_exit+0xf6 sys/uvm/uvm_glue.c:443 exit1() at netbsd:exit1+0x4cb sys/kern/kern_exit.c:332 sys_exit() at netbsd:sys_exit+0xba sys/kern/kern_exit.c:179 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 1) --- [ 78.8908176] Skipping crash dump on recursive panic [ 78.8908176] 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 [ 78.8908176] Faulted in mid-traceback; aborting... [ 78.8908176] fatal breakpoint trap in supervisor mode [ 78.8908176] trap type 1 code 0 rip 0xffffffff8021ddbd cs 0x8 rflags 0x286 cr2 0x60b2a0 ilevel 0x8 rsp 0xffff8080b3b0caa0 [ 78.8908176] curlwp 0xfffffe5c2302d260 pid 867.1 lowest kstack 0xffff8080b3b0b2c0 Stopped in pid 867.1 (syz-executor.1) at netbsd:breakpoint+0x5: leave