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| Filename | Latest commit message | Latest commit date |
|---|---|---|
b1c76f97ad
commit 64733956ebba7cc629856f4a6ee35a52bc9c023f upstream.
When copying the device name, the length of the data memcpy copied exceeds
the length of the source buffer, which cause the KASAN issue below. Use
strscpy_pad() instead.
BUG: KASAN: slab-out-of-bounds in ib_nl_set_path_rec_attrs+0x136/0x320 [ib_core]
Read of size 64 at addr ffff88811a10f5e0 by task rping/140263
CPU: 3 PID: 140263 Comm: rping Not tainted 5.15.0-rc1+ #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
Call Trace:
dump_stack_lvl+0x57/0x7d
print_address_description.constprop.0+0x1d/0xa0
kasan_report+0xcb/0x110
kasan_check_range+0x13d/0x180
memcpy+0x20/0x60
ib_nl_set_path_rec_attrs+0x136/0x320 [ib_core]
ib_nl_make_request+0x1c6/0x380 [ib_core]
send_mad+0x20a/0x220 [ib_core]
ib_sa_path_rec_get+0x3e3/0x800 [ib_core]
cma_query_ib_route+0x29b/0x390 [rdma_cm]
rdma_resolve_route+0x308/0x3e0 [rdma_cm]
ucma_resolve_route+0xe1/0x150 [rdma_ucm]
ucma_write+0x17b/0x1f0 [rdma_ucm]
vfs_write+0x142/0x4d0
ksys_write+0x133/0x160
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f26499aa90f
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 fd ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 5c fd ff ff 48
RSP: 002b:00007f26495f2dc0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00000000000007d0 RCX: 00007f26499aa90f
RDX: 0000000000000010 RSI: 00007f26495f2e00 RDI: 0000000000000003
RBP: 00005632a8315440 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f26495f2e00
R13: 00005632a83154e0 R14: 00005632a8315440 R15: 00005632a830a810
Allocated by task 131419:
kasan_save_stack+0x1b/0x40
__kasan_kmalloc+0x7c/0x90
proc_self_get_link+0x8b/0x100
pick_link+0x4f1/0x5c0
step_into+0x2eb/0x3d0
walk_component+0xc8/0x2c0
link_path_walk+0x3b8/0x580
path_openat+0x101/0x230
do_filp_open+0x12e/0x240
do_sys_openat2+0x115/0x280
__x64_sys_openat+0xce/0x140
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x44/0xae
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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.