In the Linux kernel, the following vulnerability has been resolved:
net: qualcomm: rmnet: fix global oob in rmnet_policy
The variable rmnet_link_ops assign a *bigger* maxtype which leads to a
global out-of-bounds read when parsing the netlink attributes. See bug
trace below:
==================================================================
BUG: KASAN: global-out-of-bounds in validate_nla lib/nlattr.c:386 [inline]
BUG: KASAN: global-out-of-bounds in __nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600
Read of size 1 at addr ffffffff92c438d0 by task syz-executor.6/84207
CPU: 0 PID: 84207 Comm: syz-executor.6 Tainted: G N 6.1.0 #3
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x8b/0xb3 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:284 [inline]
print_report+0x172/0x475 mm/kasan/report.c:395
kasan_report+0xbb/0x1c0 mm/kasan/report.c:495
validate_nla lib/nlattr.c:386 [inline]
__nla_validate_parse+0x24af/0x2750 lib/nlattr.c:600
__nla_parse+0x3e/0x50 lib/nlattr.c:697
nla_parse_nested_deprecated include/net/netlink.h:1248 [inline]
__rtnl_newlink+0x50a/0x1880 net/core/rtnetlink.c:3485
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3594
rtnetlink_rcv_msg+0x43c/0xd70 net/core/rtnetlink.c:6091
netlink_rcv_skb+0x14f/0x410 net/netlink/af_netlink.c:2540
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x54e/0x800 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x930/0xe50 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0x154/0x190 net/socket.c:734
____sys_sendmsg+0x6df/0x840 net/socket.c:2482
___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
__sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fdcf2072359
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdcf13e3168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fdcf219ff80 RCX: 00007fdcf2072359
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 00007fdcf20bd493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffbb8d7bdf R14: 00007fdcf13e3300 R15: 0000000000022000
</TASK>
The buggy address belongs to the variable:
rmnet_policy+0x30/0xe0
The buggy address belongs to the physical page:
page:0000000065bdeb3c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x155243
flags: 0x200000000001000(reserved|node=0|zone=2)
raw: 0200000000001000 ffffea00055490c8 ffffea00055490c8 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffffff92c43780: f9 f9 f9 f9 00 00 00 02 f9 f9 f9 f9 00 00 00 07
ffffffff92c43800: f9 f9 f9 f9 00 00 00 05 f9 f9 f9 f9 06 f9 f9 f9
>ffffffff92c43880: f9 f9 f9 f9 00 00 00 00 00 00 f9 f9 f9 f9 f9 f9
^
ffffffff92c43900: 00 00 00 00 00 00 00 00 07 f9 f9 f9 f9 f9 f9 f9
ffffffff92c43980: 00 00 00 07 f9 f9 f9 f9 00 00 00 05 f9 f9 f9 f9
According to the comment of `nla_parse_nested_deprecated`, the maxtype
should be len(destination array) - 1. Hence use `IFLA_RMNET_MAX` here.
References
Configurations
Configuration 1 (hide)
|
History
21 Nov 2024, 09:02
Type | Values Removed | Values Added |
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References |
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|
References | () https://git.kernel.org/stable/c/02467ab8b404d80429107588e0f3425cf5fcd2e5 - Patch | |
References | () https://git.kernel.org/stable/c/093dab655808207f7a9f54cf156240aeafc70590 - Patch | |
References | () https://git.kernel.org/stable/c/17d06a5c44d8fd2e8e61bac295b09153496f87e1 - Patch | |
References | () https://git.kernel.org/stable/c/2295c22348faf795e1ccdf618f6eb7afdb2f7447 - Patch | |
References | () https://git.kernel.org/stable/c/3b5254862258b595662a0ccca6e9eeb88d6e7468 - Patch | |
References | () https://git.kernel.org/stable/c/b33fb5b801c6db408b774a68e7c8722796b59ecc - Patch | |
References | () https://git.kernel.org/stable/c/c4734535034672f59f2652e1e0058c490da62a5c - Patch | |
References | () https://git.kernel.org/stable/c/ee1dc3bf86f2df777038506b139371a9add02534 - Patch |
05 Nov 2024, 10:15
Type | Values Removed | Values Added |
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References |
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27 Jun 2024, 12:15
Type | Values Removed | Values Added |
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References |
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25 Jun 2024, 21:15
Type | Values Removed | Values Added |
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References |
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17 Apr 2024, 19:46
Type | Values Removed | Values Added |
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First Time |
Linux linux Kernel
Linux |
|
CWE | CWE-125 | |
CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
References | () https://git.kernel.org/stable/c/02467ab8b404d80429107588e0f3425cf5fcd2e5 - Patch | |
References | () https://git.kernel.org/stable/c/093dab655808207f7a9f54cf156240aeafc70590 - Patch | |
References | () https://git.kernel.org/stable/c/17d06a5c44d8fd2e8e61bac295b09153496f87e1 - Patch | |
References | () https://git.kernel.org/stable/c/2295c22348faf795e1ccdf618f6eb7afdb2f7447 - Patch | |
References | () https://git.kernel.org/stable/c/3b5254862258b595662a0ccca6e9eeb88d6e7468 - Patch | |
References | () https://git.kernel.org/stable/c/b33fb5b801c6db408b774a68e7c8722796b59ecc - Patch | |
References | () https://git.kernel.org/stable/c/c4734535034672f59f2652e1e0058c490da62a5c - Patch | |
References | () https://git.kernel.org/stable/c/ee1dc3bf86f2df777038506b139371a9add02534 - Patch | |
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.1 |
23 Feb 2024, 16:14
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2024-02-23 15:15
Updated : 2024-11-21 09:02
NVD link : CVE-2024-26597
Mitre link : CVE-2024-26597
CVE.ORG link : CVE-2024-26597
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-125
Out-of-bounds Read