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(parent: 041c346) | patch
ptp: prevent string overflow
authorDan Carpenter <dan.carpenter@linaro.org>
Wed, 18 Oct 2023 14:20:11 +0000 (17:20 +0300)
committerJakub Kicinski <kuba@kernel.org>
Thu, 19 Oct 2023 22:51:52 +0000 (15:51 -0700)
commit75a384ceda93df0ec2436f0188e58f166a609c49
tree5898b6b90f76fcca58af712a03c3fbdc58b5cba1tree | snapshot
parent041c3466f39d7073bbc7fb91c4e5d14170d5eb08commit | diff
ptp: prevent string overflow

The ida_alloc_max() function can return up to INT_MAX so this buffer is
not large enough.  Also use snprintf() for extra safety.

Fixes: 403376ddb422 ("ptp: add debugfs interface to see applied channel masks")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Link: https://lore.kernel.org/r/d4b1a995-a0cb-4125-aa1d-5fd5044aba1d@moroto.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/ptp/ptp_clock.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)