]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
Merge branch 'net-don-t-use-pk-through-printk-or-tracepoints'
authorJakub Kicinski <kuba@kernel.org>
Thu, 14 Aug 2025 01:26:18 +0000 (18:26 -0700)
committerJakub Kicinski <kuba@kernel.org>
Thu, 14 Aug 2025 01:26:52 +0000 (18:26 -0700)
Thomas Weißschuh says:

====================
net: Don't use %pK through printk or tracepoints

In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d2469 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping locks in atomic contexts.

Switch to the regular pointer formatting which is safer and
easier to reason about.
There are still a few users of %pK left, but these use it through seq_file,
for which its usage is safe.
====================

Link: https://patch.msgid.link/20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Trivial merge