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Filename Latest commit message Latest commit date
Zhu Yanjun 7c7c80c32e RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug
[ Upstream commit f81b33582f9339d2dc17c69b92040d3650bb4bae ]

Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcf/0x610 mm/kasan/report.c:489
 kasan_report+0xb5/0xe0 mm/kasan/report.c:602
 rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195
 rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132
 __rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232
 rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109
 create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052
 ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095
 ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679
 vfs_write fs/read_write.c:677 [inline]
 vfs_write+0x26a/0xcc0 fs/read_write.c:659
 ksys_write+0x1b8/0x200 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

In the function rxe_create_cq, when rxe_cq_from_init fails, the function
rxe_cleanup will be called to handle the allocated resources. In fact,
some memory resources have already been freed in the function
rxe_cq_from_init. Thus, this problem will occur.

The solution is to let rxe_cleanup do all the work.

Fixes: 8700e3e7c4 ("Soft RoCE driver")
Link: https://paste.ubuntu.com/p/tJgC42wDf6/
Tested-by: liuyi <liuy22@mails.tsinghua.edu.cn>
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20250412075714.3257358-1-yanjun.zhu@linux.dev
Reviewed-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-06-04 14:32:28 +02:00
arch MIPS: Fix MAX_REG_OFFSET 2025-06-04 14:32:28 +02:00
block block: fix 'kmem_cache of name 'bio-108' already exists' 2025-04-10 14:29:37 +02:00
certs
crypto crypto: null - Use spin lock instead of mutex 2025-05-02 07:39:27 +02:00
Documentation
drivers RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug 2025-06-04 14:32:28 +02:00
fs do_umount(): add missing barrier before refcount checks in sync case 2025-06-04 14:32:28 +02:00
include types: Complement the aligned types with signed 64-bit one 2025-06-04 14:32:27 +02:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:39:28 +02:00
ipc
kernel module: ensure that kobject_put() is safe for module type kobjects 2025-06-04 14:32:27 +02:00
lib lib: scatterlist: fix sg_split_phys to preserve original scatterlist offsets 2025-05-02 07:39:15 +02:00
LICENSES
mm mm: add missing release barrier on PGDAT_RECLAIM_LOCKED unlock 2025-05-02 07:39:16 +02:00
net netfilter: ipset: fix region locking in hash types 2025-06-04 14:32:26 +02:00
samples
scripts selinux: Chain up tool resolving errors in install_policy.sh 2025-04-10 14:29:39 +02:00
security
sound ALSA: usb-audio: Fix CME quirk for UF series keyboards 2025-05-02 07:39:10 +02:00
tools selftests: ublk: fix test_stripe_04 2025-05-02 07:39:29 +02:00
usr
virt
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.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS
Makefile Linux 5.4.293 2025-05-02 07:39:30 +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.