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Ye Bin a2b5035ab0 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 2024-12-05 14:02:10 +01:00
arch	riscv: kvm: Fix out-of-bounds array access	2024-12-05 14:02:08 +01:00
block	block: fix bio_split_rw_at to take zone_write_granularity into account	2024-12-05 14:01:14 +01:00
certs	sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3	2024-09-20 19:52:48 +03:00
crypto	crypto: pcrypt - Call crypto layer directly when padata_do_parallel() return -EBUSY	2024-12-05 14:01:18 +01:00
Documentation	ASoC: dt-bindings: mt6359: Update generic node name and dmic-mode	2024-12-05 14:01:39 +01:00
drivers
fs	fs/proc/kcore.c: fix coccinelle reported ERROR instances	2024-12-05 14:02:10 +01:00
include	RDMA/core: Implement RoCE GID port rescan and export delete function	2024-12-05 14:02:08 +01:00
init	initramfs: avoid filename buffer overrun	2024-12-05 14:01:12 +01:00
io_uring	io_uring/rw: fix missing NOWAIT check for O_DIRECT start write	2024-10-31 08:21:02 -06:00
ipc	struct fd layout change (and conversion to accessor helpers)	2024-09-23 09:35:36 -07:00
kernel	trace/trace_event_perf: remove duplicate samples on the first tracepoint event	2024-12-05 14:02:02 +01:00
lib	objpool: fix to make percpu slot allocation more robust	2024-11-07 14:14:58 -08:00
LICENSES	LICENSES: add 0BSD license text	2024-09-01 20:43:24 -07:00
mm	mm/mmap: fix __mmap_region() error handling in rare merge failure case	2024-11-22 15:30:26 +01:00
net	bpf: fix recursive lock when verdict program return SK_PASS	2024-12-05 14:02:01 +01:00
rust	rust: helpers: Avoid raw_spin_lock initialization for PREEMPT_RT	2024-12-05 14:01:23 +01:00
samples	bpf: Fix the xdp_adjust_tail sample prog issue	2024-12-05 14:01:42 +01:00
scripts	checkpatch: always parse orig_commit in fixes tag	2024-12-05 14:02:09 +01:00
security	integrity-v6.12	2024-11-12 13:06:31 -08:00
sound	ALSA: 6fire: Release resources at card release	2024-12-05 14:01:58 +01:00
tools	powerpc/vdso: Flag VDSO64 entry points as functions	2024-12-05 14:02:03 +01:00
usr	initramfs: shorten cmd_initfs in usr/Makefile	2024-07-16 01:07:52 +09:00
virt	ARM64:	2024-10-21 11:22:04 -07:00
.clang-format	clang-format: Update with v6.11-rc1's `for_each` macro list	2024-08-02 13:20:31 +02:00
.cocciconfig	scripts: add Linux .cocciconfig for coccinelle	2016-07-22 12:13:39 +02:00
.editorconfig	.editorconfig: remove trim_trailing_whitespace option	2024-06-13 16:47:52 +02:00
.get_maintainer.ignore	Add Jeff Kirsher to .get_maintainer.ignore	2024-03-08 11:36:54 +00:00
.gitattributes	.gitattributes: set diff driver for Rust source code files	2023-05-31 17:48:25 +02:00
.gitignore	Kbuild updates for v6.12	2024-09-24 13:02:06 -07:00
.mailmap	mailmap: add entry for Thorsten Blum	2024-11-07 14:14:59 -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 self from DSA entry	2024-11-03 12:52:38 -08:00
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	MAINTAINERS: appoint myself the XFS maintainer for 6.12 LTS	2024-12-05 14:01:10 +01:00
Makefile	Linux 6.12.1	2024-11-22 15:30:26 +01:00
README	README: Fix spelling	2024-03-18 03:36:32 -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 reStructuredText 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.