https://github.com/torvalds/linux
Amadeusz reports KASAN use-after-free errors introduced by commit 3881ee0b1edc ("efi: avoid efivars layer when loading SSDTs from variables"). The problem appears to be that the memory that holds the new ACPI table is now freed unconditionally, instead of only when the ACPI core reported a failure to load the table. So let's fix this, by omitting the kfree() on success. Cc: <stable@vger.kernel.org> # v6.0 Link: https://lore.kernel.org/all/a101a10a-4fbb-5fae-2e3c-76cf96ed8fbd@linux.intel.com/ Fixes: 3881ee0b1edc ("efi: avoid efivars layer when loading SSDTs from variables") Reported-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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efi: ssdt: Don't free memory if ACPI table was loaded successfully
File | Mode | Size |
---|---|---|
alloc | ||
bindings | ||
kernel | ||
macros | ||
.gitignore | -rw-r--r-- | 133 bytes |
Makefile | -rw-r--r-- | 15.9 KB |
bindgen_parameters | -rw-r--r-- | 667 bytes |
compiler_builtins.rs | -rw-r--r-- | 1.7 KB |
exports.c | -rw-r--r-- | 730 bytes |
helpers.c | -rw-r--r-- | 2.2 KB |
Computing file changes ...