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Thorsten Blum 52f37ce2d5 scsi: hpsa: Fix potential memory leak in hpsa_big_passthru_ioctl() 
commit b81296591c upstream.

Replace kmalloc() followed by copy_from_user() with memdup_user() to fix
a memory leak that occurs when copy_from_user(buff[sg_used],,) fails and
the 'cleanup1:' path does not free the memory for 'buff[sg_used]'. Using
memdup_user() avoids this by freeing the memory internally.

Since memdup_user() already allocates memory, use kzalloc() in the else
branch instead of manually zeroing 'buff[sg_used]' using memset(0).

Cc: stable@vger.kernel.org
Fixes: edd163687e ("[SCSI] hpsa: add driver for HP Smart Array controllers.")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Don Brace <don.brace@microchip.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-19 16:23:15 +02:00
arch powerpc/pseries/msi: Fix potential underflow and leak issue 2025-10-19 16:23:15 +02:00
block blk-crypto: fix missing blktrace bio split events 2025-10-19 16:23:12 +02:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2025-04-25 10:44:04 +02:00
crypto crypto: essiv - Check ssize for decryption and in-place encryption 2025-10-19 16:23:10 +02:00
Documentation dt-bindings: phy: rockchip-inno-csi-dphy: make power-domains non-required 2025-10-19 16:23:11 +02:00
drivers scsi: hpsa: Fix potential memory leak in hpsa_big_passthru_ioctl() 2025-10-19 16:23:15 +02:00
fs openat2: don't trigger automounts with RESOLVE_NO_XDEV 2025-10-19 16:23:14 +02:00
include scsi: libsas: Add sas_task_find_rq() 2025-10-19 16:23:07 +02:00
init init: handle bootloader identifier in kernel parameters 2025-10-19 16:23:13 +02:00
io_uring io_uring: include dying ring in task_work "should cancel" state 2025-09-25 10:58:53 +02:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:07:30 +01:00
kernel sched/deadline: Fix race in push_dl_task() 2025-10-19 16:23:15 +02:00
lib lib/genalloc: fix device leak in of_gen_pool_get() 2025-10-19 16:23:14 +02:00
LICENSES LICENSES/LGPL-2.1: Add LGPL-2.1-or-later as valid identifiers 2021-12-16 14:33:10 +01:00
mm mm: hugetlb: avoid soft lockup when mprotect to large memory area 2025-10-15 11:56:40 +02:00
net bridge: br_vlan_fill_forward_path_pvid: use br_vlan_group_rcu() 2025-10-19 16:23:09 +02:00
rust rust: module: place cleanup_module() in .exit.text section 2025-07-06 10:57:54 +02:00
samples ftrace/samples: Fix function size computation 2025-09-19 16:29:56 +02:00
scripts gcc-plugins: Remove TODO_verify_il for GCC >= 16 2025-10-15 11:56:20 +02:00
security KEYS: trusted_tpm1: Compare HMAC values in constant time 2025-10-19 16:23:14 +02:00
sound ASoC: Intel: bytcr_rt5651: Fix invalid quirk input mapping 2025-10-15 11:56:33 +02:00
tools tools build: Align warning options with perf 2025-10-19 16:23:09 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:07:25 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-06-27 13:46:21 +02:00
.clang-format inet: ping: use hlist_nulls rcu iterator during lookup 2022-12-01 12:42:46 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore get_maintainer: add Alan to .get_maintainer.ignore 2022-08-20 15:17:44 -07:00
.gitattributes .gitattributes: use 'dts' diff driver for dts files 2019-12-04 19:44:11 -08:00
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:21:15 +02:00
.mailmap 9 hotfixes. 6 for MM, 3 for other areas. Four of these patches address 2022-12-10 17:10:52 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: Remove Michal Marek from Kbuild maintainers 2022-11-16 14:53:00 +09:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS sign-file,extract-cert: move common SSL helper functions to a header 2025-04-25 10:44:04 +02:00
Makefile Linux 6.1.156 2025-10-15 11:56:41 +02:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

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.