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Filename Latest commit message Latest commit date
Roberto Sassu 7f3bb75a04 KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 
[ Upstream commit c3d03e8e35e005e1a614e51bb59053eeb5857f76 ]

Commit ac4e97abce ("scatterlist: sg_set_buf() argument must be in linear
mapping") checks that both the signature and the digest reside in the
linear mapping area.

However, more recently commit ba14a194a4 ("fork: Add generic vmalloced
stack support") made it possible to move the stack in the vmalloc area,
which is not contiguous, and thus not suitable for sg_set_buf() which needs
adjacent pages.

Always make a copy of the signature and digest in the same buffer used to
store the key and its parameters, and pass them to sg_init_one(). Prefer it
to conditionally doing the copy if necessary, to keep the code simple. The
buffer allocated with kmalloc() is in the linear mapping area.

Cc: stable@vger.kernel.org # 4.9.x
Fixes: ba14a194a4 ("fork: Add generic vmalloced stack support")
Link: https://lore.kernel.org/linux-integrity/Y4pIpxbjBdajymBJ@sol.localdomain/
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-06-21 15:44:08 +02:00
arch treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
block block/blk-iocost (gcc13): keep large values in a new enum 2023-06-14 10:59:54 +02:00
certs
crypto KEYS: asymmetric: Copy sig and digest in public_key_verify_signature() 2023-06-21 15:44:08 +02:00
Documentation
drivers Revert "staging: rtl8192e: Replace macro RTL_PCI_DEVICE with PCI_DEVICE" 2023-06-14 11:00:00 +02:00
fs btrfs: unset reloc control if transaction commit fails in prepare_to_relocate() 2023-06-14 10:59:59 +02:00
include bonding (gcc13): synchronize bond_{a,t}lb_xmit() types 2023-06-14 10:59:58 +02:00
init
ipc
kernel tracing/probe: trace_probe_primary_from_call(): checked list_first_entry 2023-06-09 10:29:02 +02:00
lib test_firmware: fix a memory leak with reqs buffer 2023-06-21 15:44:08 +02:00
LICENSES
mm treewide: Remove uninitialized_var() usage 2023-06-09 10:29:01 +02:00
net Bluetooth: Fix use-after-free in hci_remove_ltk/hci_remove_irk 2023-06-14 10:59:58 +02:00
samples
scripts recordmcount: Fix memory leaks in the uwrite function 2023-05-30 12:44:04 +01:00
security selinux: don't use make's grouped targets feature yet 2023-06-09 10:29:02 +02:00
sound ALSA: hda/realtek: Add Lenovo P3 Tower platform 2023-06-14 10:59:57 +02:00
tools selftests: fib_tests: mute cleanup error message 2023-05-30 12:44:10 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.247 2023-06-14 11:00:00 +02:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.