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author | Andrew Scull <ascull@google.com> | 2022-04-03 10:39:09 +0000 |
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committer | Tom Rini <trini@konsulko.com> | 2022-04-29 11:11:36 -0400 |
commit | 3849ca7b2f8363dee751c6918df0aacf64cde3bd (patch) | |
tree | 728e63f6e501a84e9337c10727473d277f3a6615 | |
parent | 53cb97c093061b81ab3247c432d15be011353470 (diff) | |
download | u-boot-3849ca7b2f8363dee751c6918df0aacf64cde3bd.zip u-boot-3849ca7b2f8363dee751c6918df0aacf64cde3bd.tar.gz u-boot-3849ca7b2f8363dee751c6918df0aacf64cde3bd.tar.bz2 |
acpi: Fix buffer overflow in do_acpi_dump()
When do_acpi_dump() converts the table name to upper case, pass the
actual size of the output buffer so that the null terminator doesn't get
written beyond the end of the buffer.
Signed-off-by: Andrew Scull <ascull@google.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
-rw-r--r-- | cmd/acpi.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -178,7 +178,7 @@ static int do_acpi_dump(struct cmd_tbl *cmdtp, int flag, int argc, printf("Table name '%s' must be four characters\n", name); return CMD_RET_FAILURE; } - str_to_upper(name, sig, -1); + str_to_upper(name, sig, ACPI_NAME_LEN); ret = dump_table_name(sig); if (ret) { printf("Table '%.*s' not found\n", ACPI_NAME_LEN, sig); |