tty: vcc: zero-initialize control packet in vcc_send_ctl()

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The stack-allocated struct vio_vcc pkt was partially initialized,
leaving the tag.stype_env field uninitialized before being sent via
ldc_write(), potentially leaking kernel stack data to the LDC peer.

Assisted-by: AISLE:Snapshot
Cc: stable <stable@kernel.org>
Signed-off-by: Joshua Rogers <linux@joshua.hu>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://patch.msgid.link/20260803-aisle-tty-vcc-v2-1-a50bc9b15193@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Joshua Rogers 2026-08-03 16:10:54 +02:00 • committed by Greg Kroah-Hartman

parent e62e601cfd

commit 1f71f565e3

1 changed files with 1 additions and 1 deletions

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drivers/tty/vcc.c

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