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Filename Latest commit message Latest commit date
Eric Biggers d312c0035e KEYS: fix length validation in keyctl_pkey_params_get_2()
commit c51abd96837f600d8fd940b6ab8e2da578575504 upstream.

In many cases, keyctl_pkey_params_get_2() is validating the user buffer
lengths against the wrong algorithm properties.  Fix it to check against
the correct properties.

Probably this wasn't noticed before because for all asymmetric keys of
the "public_key" subtype, max_data_size == max_sig_size == max_enc_size
== max_dec_size.  However, this isn't necessarily true for the
"asym_tpm" subtype (it should be, but it's not strictly validated).  Of
course, future key types could have different values as well.

Fixes: 00d60fd3b9 ("KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]")
Cc: <stable@vger.kernel.org> # v4.20+
Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-15 14:17:58 +02:00
arch nds32: fix access_ok() checks in get/put_user 2022-03-28 08:46:48 +02:00
block block: Fix fsync always failed if once failed 2022-03-08 19:07:47 +01:00
certs
crypto crypto: pcrypt - Delay write to padata->info 2021-11-17 09:48:40 +01:00
Documentation swiotlb: fix info leak with DMA_FROM_DEVICE 2022-04-15 14:17:55 +02:00
drivers clk: uniphier: Fix fixed-rate initialization 2022-04-15 14:17:58 +02:00
fs nfsd: Containerise filecache laundrette 2022-03-28 08:46:43 +02:00
include block: Add a helper to validate the block size 2022-04-15 14:17:57 +02:00
init bpf: Add kconfig knob for disabling unpriv bpf by default 2022-02-16 12:52:49 +01:00
ipc shm: extend forced shm destroy to support objects from several IPC nses 2021-12-01 09:23:35 +01:00
kernel ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE 2022-04-15 14:17:58 +02:00
lib ARM: 9178/1: fix unmet dependency on BITREVERSE for HAVE_ARCH_BITREVERSE 2022-03-19 13:40:16 +01:00
LICENSES
mm memfd: fix F_SEAL_WRITE after shmem huge page allocated 2022-03-08 19:07:49 +01:00
net af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register 2022-04-15 14:17:56 +02:00
samples samples/kretprobes: Fix return value if register_kretprobe() failed 2021-11-17 09:48:39 +01:00
scripts kconfig: fix failing to generate auto.conf 2022-02-23 12:00:01 +01:00
security KEYS: fix length validation in keyctl_pkey_params_get_2() 2022-04-15 14:17:58 +02:00
sound ALSA: hda/realtek: Add quirk for ASUS GA402 2022-03-28 08:46:46 +02:00
tools Revert "selftests/bpf: Add test for bpf_timer overwriting crash" 2022-03-23 09:12:08 +01:00
usr
virt KVM: arm64: Allow SMCCC_ARCH_WORKAROUND_3 to be discovered and migrated 2022-03-19 13:40:15 +01:00
.clang-format
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Makefile Linux 5.4.188 2022-03-28 08:46:49 +02:00
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.