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| author | Benjamin Berg <benjamin.berg@intel.com> | 2024-12-17 23:27:44 +0300 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2025-02-13 01:40:38 +0300 |
| commit | 8891b176d350ec5ea9a39c6ef4c99bd63d68e64c (patch) | |
| tree | ff78ecd550af765090dd95cf9a26ea7cbeb321ab /scripts/extract-fwblobs | |
| parent | 5298b7cffa8461009a4410f4e23f1c50ade39182 (diff) | |
| download | linux-8891b176d350ec5ea9a39c6ef4c99bd63d68e64c.tar.xz | |
um: avoid copying FP state from init_task
The init_task instance of struct task_struct is statically allocated and
does not contain the dynamic area for the userspace FP registers. As
such, limit the copy to the valid area of init_task and fill the rest
with zero.
Note that the FP state is only needed for userspace, and as such it is
entirely reasonable for init_task to not contain it.
Reported-by: Brian Norris <briannorris@chromium.org>
Closes: https://lore.kernel.org/Z1ySXmjZm-xOqk90@google.com
Fixes: 3f17fed21491 ("um: switch to regset API and depend on XSTATE")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Link: https://patch.msgid.link/20241217202745.1402932-3-benjamin@sipsolutions.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'scripts/extract-fwblobs')
0 files changed, 0 insertions, 0 deletions