mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-13 22:25:03 +00:00
6cbac1e4cd
The current mlx5 code disallows mapping the free running counter of
mlx5 based hardwares when PROT_EXEC is set.
Although this behaviour is correct, Linux does add an implicit VM_EXEC
to the vm_flags if the READ_IMPLIES_EXEC bit is set in the process
personality. This happens for example if the process stack is
executable.
This causes libmlx5 to output a warning and prevents the user from
reading the free running clock.
Executing the init segment of the hardware isn't a security risk
(at least no more than executing a process own stack), so we just
prevent writes to there.
Fixes:
|
||
---|---|---|
.. | ||
cxgb3 | ||
cxgb4 | ||
i40iw | ||
mlx4 | ||
mlx5 | ||
mthca | ||
nes | ||
ocrdma | ||
qib | ||
usnic | ||
Makefile |