In the Linux kernel, the following vulnerability has been resolved:
io_uring/sqpoll: work around a potential audit memory leak
kmemleak complains that there's a memory leak related to connect
handling:
unreferenced object 0xffff0001093bdf00 (size 128):
comm "iou-sqp-455", pid 457, jiffies 4294894164
hex dump (first 32 bytes):
02 00 fa ea 7f 00 00 01 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc 2e481b1a):
[<00000000c0a26af4>] kmemleak_alloc+0x30/0x38
[<000000009c30bb45>] kmalloc_trace+0x228/0x358
[<000000009da9d39f>] __audit_sockaddr+0xd0/0x138
[<0000000089a93e34>] move_addr_to_kernel+0x1a0/0x1f8
[<000000000b4e80e6>] io_connect_prep+0x1ec/0x2d4
[<00000000abfbcd99>] io_submit_sqes+0x588/0x1e48
[<00000000e7c25e07>] io_sq_thread+0x8a4/0x10e4
[<00000000d999b491>] ret_from_fork+0x10/0x20
which can can happen if:
1) The command type does something on the prep side that triggers an
audit call.
2) The thread hasn't done any operations before this that triggered
an audit call inside ->issue(), where we have audit_uring_entry()
and audit_uring_exit().
Work around this by issuing a blanket NOP operation before the SQPOLL
does anything.
References
Configurations
Configuration 1 (hide)
|
History
21 Aug 2024, 16:17
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/a40e90d9304629002fb17200f7779823a81191d3 - Patch | |
| References | () https://git.kernel.org/stable/c/9e810bd995823786ea30543e480e8a573e5e5667 - Patch | |
| References | () https://git.kernel.org/stable/c/c4ce0ab27646f4206a9eb502d6fe45cb080e1cae - Patch | |
| References | () https://git.kernel.org/stable/c/55c22375cbaa24f77dd13f9ae0642915444a1227 - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-401 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux
Linux linux Kernel |
12 Jul 2024, 13:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2024-07-12 13:15
Updated : 2024-08-21 16:17
NVD link : CVE-2024-41001
Mitre link : CVE-2024-41001
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-401
Missing Release of Memory after Effective Lifetime