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Filename Latest commit message Latest commit date
Terry Junge 7a6d6b68db HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse()
commit fe7f7ac8e0c708446ff017453add769ffc15deed upstream.

Update struct hid_descriptor to better reflect the mandatory and
optional parts of the HID Descriptor as per USB HID 1.11 specification.
Note: the kernel currently does not parse any optional HID class
descriptors, only the mandatory report descriptor.

Update all references to member element desc[0] to rpt_desc.

Add test to verify bLength and bNumDescriptors values are valid.

Replace the for loop with direct access to the mandatory HID class
descriptor member for the report descriptor. This eliminates the
possibility of getting an out-of-bounds fault.

Add a warning message if the HID descriptor contains any unsupported
optional HID class descriptors.

Reported-by: syzbot+c52569baf0c843f35495@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=c52569baf0c843f35495
Fixes: f043bfc98c ("HID: usbhid: fix out-of-bounds bug")
Cc: stable@vger.kernel.org
Signed-off-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Terry Junge <linuxhid@cosmicgizmosystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-27 11:02:56 +01:00
arch Revert "x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2" on v6.6 and older 2025-06-27 11:02:56 +01:00
block block: fix 'kmem_cache of name 'bio-108' already exists' 2025-04-10 14:29:37 +02:00
certs
crypto crypto: algif_hash - fix double free in hash_accept 2025-06-04 14:32:35 +02:00
Documentation Revert "x86/bugs: Make spectre user default depend on MITIGATION_SPECTRE_V2" on v6.6 and older 2025-06-27 11:02:56 +01:00
drivers HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() 2025-06-27 11:02:56 +01:00
fs jffs2: check jffs2_prealloc_raw_node_refs() result in few other places 2025-06-27 11:02:56 +01:00
include HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() 2025-06-27 11:02:56 +01:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:39:28 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:02:52 +01:00
kernel ftrace: Fix UAF when lookup kallsym after ftrace disabled 2025-06-27 11:02:52 +01:00
lib dql: Fix dql->limit value when reset. 2025-06-04 14:32:30 +02:00
LICENSES
mm mm: fix ratelimit_pages update error in dirty_ratio_handler() 2025-06-27 11:02:52 +01:00
net atm: Revert atm_account_tx() if copy_from_iter_full() fails. 2025-06-27 11:02:56 +01:00
samples samples/bpf: Fix a resource leak 2024-12-14 19:44:50 +01:00
scripts kbuild: fix argument parsing in scripts/config 2025-06-04 14:32:31 +02:00
security selinux: fix selinux_xfrm_alloc_user() to set correct ctx_len 2025-06-27 11:02:56 +01:00
sound ALSA: pcm: Fix race of buffer access at PCM OSS layer 2025-06-04 14:32:35 +02:00
tools perf record: Fix incorrect --user-regs comments 2025-06-27 11:02:48 +01:00
usr
virt KVM: arm64: Ignore PMCNTENSET_EL0 while checking for overflow status 2024-12-19 18:05:04 +01:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS platform: Add Surface platform directory 2025-06-27 11:02:56 +01:00
Makefile Linux 5.4.294 2025-06-04 14:32:37 +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.