panic: malloc: allocation too large, type = 31, size = 4294969536
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*225341  21321      0           0  0x4000000    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff8335716a) at panic+0x1cf sys/kern/subr_prf.c:198
malloc(1000008c0,1f,1) at malloc+0xcf4 sys/kern/kern_malloc.c:334
sys_semop(ffff80002a79bc60,ffff80003c9b34b0,ffff80003c9b3400) at sys_semop+0x234 sys/kern/sysv_sem.c:564
syscall(ffff80003c9b34b0) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80003c9b34b0) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xa941cb2ba50, count: 9
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