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Filename Latest commit message Latest commit date
Yu Kuai 5c4d71424d scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() 
[ Upstream commit a13faca032acbf2699293587085293bdfaafc8ae ]

If alua_rtpg_queue() failed from alua_activate(), then 'qdata' is not
freed, which will cause following memleak:

unreferenced object 0xffff88810b2c6980 (size 32):
  comm "kworker/u16:2", pid 635322, jiffies 4355801099 (age 1216426.076s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    40 39 24 c1 ff ff ff ff 00 f8 ea 0a 81 88 ff ff  @9$.............
  backtrace:
    [<0000000098f3a26d>] alua_activate+0xb0/0x320
    [<000000003b529641>] scsi_dh_activate+0xb2/0x140
    [<000000007b296db3>] activate_path_work+0xc6/0xe0 [dm_multipath]
    [<000000007adc9ace>] process_one_work+0x3c5/0x730
    [<00000000c457a985>] worker_thread+0x93/0x650
    [<00000000cb80e628>] kthread+0x1ba/0x210
    [<00000000a1e61077>] ret_from_fork+0x22/0x30

Fix the problem by freeing 'qdata' in error path.

Fixes: 625fe857e4 ("scsi: scsi_dh_alua: Check scsi_device_get() return value")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Link: https://lore.kernel.org/r/20230315062154.668812-1-yukuai1@huaweicloud.com
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-04-05 11:16:36 +02:00
arch s390/ipl: add missing intersection check to ipl_report handling 2023-03-22 13:28:09 +01:00
block blk-iocost: fix divide by 0 error in calc_lcoefs() 2023-03-11 16:43:54 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-22 14:11:22 +02:00
crypto crypto: rsa-pkcs1pad - Use akcipher_request_complete 2023-03-11 16:43:41 +01:00
Documentation docs: Correct missing "d_" prefix for dentry_operations member d_weak_revalidate 2023-03-22 13:28:03 +01:00
drivers scsi: scsi_dh_alua: Fix memleak for 'qdata' in alua_activate() 2023-04-05 11:16:36 +02:00
fs ext4: fix possible double unlock when moving a directory 2023-03-22 13:28:08 +01:00
include HID: core: Provide new max_buffer_size attribute to over-ride the default 2023-03-22 13:28:10 +01:00
init init/Kconfig: fix CC_HAS_ASM_GOTO_TIED_OUTPUT test with dash 2022-12-08 11:22:59 +01:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:23:06 +01:00
kernel ftrace: Fix invalid address access in lookup_rec() when index is 0 2023-03-22 13:28:09 +01:00
lib lib/mpi: Fix buffer overrun when SG is too long 2023-03-11 16:43:38 +01:00
LICENSES LICENSES: Rename other to deprecated 2019-05-03 06:34:32 -06:00
mm mm/thp: check and bail out if page in deferred queue already 2023-03-11 16:44:05 +01:00
net net: tls: fix possible race condition between do_tls_getsockopt_conf() and do_tls_setsockopt_conf() 2023-04-05 11:16:36 +02:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2023-01-18 11:41:26 +01:00
scripts ftrace/scripts: Update the instructions for ftrace-bisect.sh 2023-02-06 07:52:44 +01:00
security ima: Align ima_file_mmap() parameters with mmap_file LSM hook 2023-03-11 16:44:02 +01:00
sound ALSA: hda: Match only Intel devices with CONTROLLER_IN_GPU() 2023-03-22 13:28:04 +01:00
tools selftests: Fix the executable permissions for fib_tests.sh 2023-03-30 15:03:42 +02:00
usr initramfs: restore default compression behavior 2020-04-08 09:08:38 +02:00
virt KVM: Destroy target device if coalesced MMIO unregistration fails 2023-03-11 16:44:01 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-08-31 10:00:51 +02:00
.cocciconfig
.get_maintainer.ignore Opt out of scripts/get_maintainer.pl 2019-05-16 10:53:40 -07:00
.gitattributes
.gitignore Modules updates for v5.4 2019-09-22 10:34:46 -07:00
.mailmap ARM: SoC fixes 2019-11-10 13:41:59 -08:00
COPYING
CREDITS MAINTAINERS: Remove Simon as Renesas SoC Co-Maintainer 2019-10-10 08:12:51 -07:00
Kbuild kbuild: do not descend to ./Kbuild when cleaning 2019-08-21 21:03:58 +09:00
Kconfig docs: kbuild: convert docs to ReST and rename to *.rst 2019-06-14 14:21:21 -06:00
MAINTAINERS net/phy/mdio-i2c: Move header file to include/linux/mdio 2023-02-06 07:52:46 +01:00
Makefile Linux 5.4.239 2023-03-30 15:04:27 +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.