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(parent: 6222428) | patch
tiny-printf: Handle NULL pointer argument to %s
authorBenedikt Spranger <b.spranger@linutronix.de>
Fri, 18 Oct 2024 08:30:02 +0000 (10:30 +0200)
committerEugen Hristev <eugen.hristev@linaro.org>
Fri, 29 Nov 2024 10:59:27 +0000 (12:59 +0200)
commitf0dab28915b7890d5a7d958bc4b6f9b61f535cb4
treecab3a018ce691e141ef410c1ca825e08e5d204aftree | snapshot
parent62224280d9e89648ae90346c0aede76f9b7e7610commit | diff
tiny-printf: Handle NULL pointer argument to %s

A NULL pointer argument to %s causes a NULL pointer dereference in the
fixed width numerical printout code, since p is overwritten with NULL.
In case of %s width is 0. Check width before dereferencing the pointer.

Signed-off-by: Benedikt Spranger <b.spranger@linutronix.de>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
lib/tiny-printf.c diff | blob | history
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