parsers: fix seven bugs found by fuzzing

kdl: heap-buffer-overflow on trailing backslash in a string (a"\)
jsonval: heap-buffer-overflow on truncated \uXXXX escape ("\u)
jsonval: UB float-to-long cast on out-of-range numbers (2e22)
expr: UB signed overflow in arithmetic ops — wrap as uint32
expr: INT32_MIN / -1 SIGFPE guard in OP_DIV/OP_MOD
expr: stack overflow on deep nesting — add MAX_DEPTH 256
expr: 64-bit + saturation in OP_DIST to prevent squared overflow
input: NULL memcpy in input_timeout's re-parse path
input: signed overflow in CSI and SGR mouse parameter accumulation

0 files changed, 0 insertions, 0 deletions