tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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platform/x86: dell-wmi-sysman: Don't hex dump plaintext password data

set_new_password() hex dumps the entire buffer, which contains plaintext
password data, including current and new passwords. Remove the hex dump
to avoid leaking credentials.

Fixes: e8a60aa7404b ("platform/x86: Introduce support for Systems Management Driver over WMI for Dell Systems")
Cc: stable@vger.kernel.org
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://patch.msgid.link/20260303113050.58127-2-thorsten.blum@linux.dev
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

authored by

Thorsten Blum and committed by
Ilpo Järvinen d1a196e0 3350c2b3

-1
-1
drivers/platform/x86/dell/dell-wmi-sysman/passwordattr-interface.c
··· 93 93 if (ret < 0) 94 94 goto out; 95 95 96 - print_hex_dump_bytes("set new password data: ", DUMP_PREFIX_NONE, buffer, buffer_size); 97 96 ret = call_password_interface(wmi_priv.password_attr_wdev, buffer, buffer_size); 98 97 /* on success copy the new password to current password */ 99 98 if (!ret)