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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-06-18 14:17:45 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-06-18 21:12:13 +0200 |
commit | 6fcab2791543924d438e7fa49276d0998b0a069f (patch) | |
tree | 67f23eeba1db09bad3a80b3c57c5389932e645de /net/lapb/lapb_timer.c | |
parent | e04c78d86a9699d136910cfc0bdcf01087e3267e (diff) |
ACPICA: Refuse to evaluate a method if arguments are missing
As reported in [1], a platform firmware update that increased the number
of method parameters and forgot to update a least one of its callers,
caused ACPICA to crash due to use-after-free.
Since this a result of a clear AML issue that arguably cannot be fixed
up by the interpreter (it cannot produce missing data out of thin air),
address it by making ACPICA refuse to evaluate a method if the caller
attempts to pass fewer arguments than expected to it.
Closes: https://github.com/acpica/acpica/issues/1027 [1]
Reported-by: Peter Williams <peter@newton.cx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hans de Goede <hansg@kernel.org>
Tested-by: Hans de Goede <hansg@kernel.org> # Dell XPS 9640 with BIOS 1.12.0
Link: https://patch.msgid.link/5909446.DvuYhMxLoT@rjwysocki.net
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions