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Ye Bin e76181a5be scsi: bfa: Fix use-after-free in bfad_im_module_exit() [ Upstream commit `178b8f3893` ] BUG: KASAN: slab-use-after-free in __lock_acquire+0x2aca/0x3a20 Read of size 8 at addr ffff8881082d80c8 by task modprobe/25303 Call Trace: <TASK> dump_stack_lvl+0x95/0xe0 print_report+0xcb/0x620 kasan_report+0xbd/0xf0 __lock_acquire+0x2aca/0x3a20 lock_acquire+0x19b/0x520 _raw_spin_lock+0x2b/0x40 attribute_container_unregister+0x30/0x160 fc_release_transport+0x19/0x90 [scsi_transport_fc] bfad_im_module_exit+0x23/0x60 [bfa] bfad_init+0xdb/0xff0 [bfa] do_one_initcall+0xdc/0x550 do_init_module+0x22d/0x6b0 load_module+0x4e96/0x5ff0 init_module_from_file+0xcd/0x130 idempotent_init_module+0x330/0x620 __x64_sys_finit_module+0xb3/0x110 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f </TASK> Allocated by task 25303: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x7f/0x90 fc_attach_transport+0x4f/0x4740 [scsi_transport_fc] bfad_im_module_init+0x17/0x80 [bfa] bfad_init+0x23/0xff0 [bfa] do_one_initcall+0xdc/0x550 do_init_module+0x22d/0x6b0 load_module+0x4e96/0x5ff0 init_module_from_file+0xcd/0x130 idempotent_init_module+0x330/0x620 __x64_sys_finit_module+0xb3/0x110 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 25303: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x38/0x50 kfree+0x212/0x480 bfad_im_module_init+0x7e/0x80 [bfa] bfad_init+0x23/0xff0 [bfa] do_one_initcall+0xdc/0x550 do_init_module+0x22d/0x6b0 load_module+0x4e96/0x5ff0 init_module_from_file+0xcd/0x130 idempotent_init_module+0x330/0x620 __x64_sys_finit_module+0xb3/0x110 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Above issue happens as follows: bfad_init error = bfad_im_module_init() fc_release_transport(bfad_im_scsi_transport_template); if (error) goto ext; ext: bfad_im_module_exit(); fc_release_transport(bfad_im_scsi_transport_template); --> Trigger double release Don't call bfad_im_module_exit() if bfad_im_module_init() failed. Fixes: `7725ccfda5` ("[SCSI] bfa: Brocade BFA FC SCSI driver") Signed-off-by: Ye Bin <yebin10@huawei.com> Link: https://lore.kernel.org/r/20241023011809.63466-1-yebin@huaweicloud.com Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2024-12-14 19:51:02 +01:00
arch	powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore	2024-12-14 19:51:01 +01:00
block	block: Fix elevator_get_default() checking for NULL q->tag_set	2024-11-17 15:06:24 +01:00
certs	certs/blacklist_hashes.c: fix const confusion in certs blacklist	2022-06-22 14:22:01 +02:00
crypto	crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY	2024-12-14 19:50:44 +01:00
Documentation	ASoC: dt-bindings: mt6359: Update generic node name and dmic-mode	2024-12-14 19:50:53 +01:00
drivers	scsi: bfa: Fix use-after-free in bfad_im_module_exit()	2024-12-14 19:51:02 +01:00
fs	hfsplus: don't query the device logical block size multiple times	2024-12-14 19:50:43 +01:00
include	netpoll: Use rcu_access_pointer() in netpoll_poll_lock	2024-12-14 19:50:59 +01:00
init	initramfs: avoid filename buffer overrun	2024-12-14 19:50:42 +01:00
io_uring	io_uring: fix possible deadlock in io_register_iowq_max_workers()	2024-11-17 15:06:25 +01:00
ipc	ipc/sem: Fix dangling sem_array access in semtimedop race	2022-12-08 11:28:45 +01:00
kernel	trace/trace_event_perf: remove duplicate samples on the first tracepoint event	2024-12-14 19:51:00 +01:00
lib	lib/buildid: Fix build ID parsing logic	2024-12-14 19:50:37 +01:00
LICENSES	LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"	2021-07-15 06:31:24 -06:00
mm	mm: resolve faulty mmap_region() error path behaviour	2024-12-14 19:50:38 +01:00
net	bpf: fix recursive lock when verdict program return SK_PASS	2024-12-14 19:50:59 +01:00
samples	bpf: Fix the xdp_adjust_tail sample prog issue	2024-12-14 19:50:54 +01:00
scripts	kconfig: qconf: fix buffer overflow in debug links	2024-10-17 15:11:43 +02:00
security	security/keys: fix slab-out-of-bounds in key_task_permission	2024-11-14 13:13:36 +01:00
sound	ALSA: 6fire: Release resources at card release	2024-12-14 19:50:59 +01:00
tools	powerpc/vdso: Flag VDSO64 entry points as functions	2024-12-14 19:51:00 +01:00
usr	usr/include/Makefile: add linux/nfc.h to the compile-test coverage	2022-02-01 17:27:15 +01:00
virt	KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()	2024-10-22 15:40:41 +02:00
.clang-format	clang-format: Update with the latest for_each macro list	2021-05-12 23:32:39 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.get_maintainer.ignore	Opt out of scripts/get_maintainer.pl	2019-05-16 10:53:40 -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 15:11:10 +02:00
.mailmap	mailmap: add Andrej Shadura	2021-10-18 20:22:03 -10:00
COPYING	COPYING: state that all contributions really are covered by this file	2020-02-10 13:32:20 -08:00
CREDITS	MAINTAINERS: Move Daniel Drake to credits	2021-09-21 08:34:58 +03:00
Kbuild	kbuild: rename hostprogs-y/always to hostprogs/always-y	2020-02-04 01:53:07 +09:00
Kconfig	kbuild: ensure full rebuild when the compiler is updated	2020-05-12 13:28:33 +09:00
MAINTAINERS	trace: Relocate event helper files	2024-04-10 16:19:24 +02:00
Makefile	Linux 5.15.173	2024-11-17 15:06:26 +01:00
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.