CVE-2022-48759— Linux kernel安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 rpmsg:char 模块 rpmsg_ctrldev 和 cdev 释放存在竞争。
可能的 ATT&CK 技术 1 AI
T1134 · Access Token Manipulation影响版本矩阵 16
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | c0cdc19f84a4712cf74888f83af286e3c2e14efd< 74d85e9fbc7022a4011102c7474a9c7aeb704a35 |
affected |
c0cdc19f84a4712cf74888f83af286e3c2e14efd< 70cb4295ec806b663665e1d2ed15caab6159880e |
affected | ||
c0cdc19f84a4712cf74888f83af286e3c2e14efd< da27b834c1e0222e149e06caddf7718478086d1b |
affected | ||
c0cdc19f84a4712cf74888f83af286e3c2e14efd< 1dbb206730f3e5ce90014ad569ddf8167ec4124a |
affected | ||
c0cdc19f84a4712cf74888f83af286e3c2e14efd< 85aba11a8ea92a8eef2de95ebbe063086fd62d9c |
affected | ||
c0cdc19f84a4712cf74888f83af286e3c2e14efd< d6cdc6ae542845d4d0ac8b6d99362bde7042a3c7 |
affected | ||
c0cdc19f84a4712cf74888f83af286e3c2e14efd< b7fb2dad571d1e21173c06cef0bced77b323990a |
affected | ||
4.11 |
affected | ||
| … +8 条更多 | |||
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一、 漏洞 CVE-2022-48759 基础信息
漏洞信息
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Vulnerability Title
rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
rpmsg: char: Fix race between the release of rpmsg_ctrldev and cdev
struct rpmsg_ctrldev contains a struct cdev. The current code frees
the rpmsg_ctrldev struct in rpmsg_ctrldev_release_device(), but the
cdev is a managed object, therefore its release is not predictable
and the rpmsg_ctrldev could be freed before the cdev is entirely
released, as in the backtrace below.
[ 93.625603] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x7c
[ 93.636115] WARNING: CPU: 0 PID: 12 at lib/debugobjects.c:488 debug_print_object+0x13c/0x1b0
[ 93.644799] Modules linked in: veth xt_cgroup xt_MASQUERADE rfcomm algif_hash algif_skcipher af_alg uinput ip6table_nat fuse uvcvideo videobuf2_vmalloc venus_enc venus_dec videobuf2_dma_contig hci_uart btandroid btqca snd_soc_rt5682_i2c bluetooth qcom_spmi_temp_alarm snd_soc_rt5682v
[ 93.715175] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.4.163-lockdep #26
[ 93.723855] Hardware name: Google Lazor (rev3 - 8) with LTE (DT)
[ 93.730055] Workqueue: events kobject_delayed_cleanup
[ 93.735271] pstate: 60c00009 (nZCv daif +PAN +UAO)
[ 93.740216] pc : debug_print_object+0x13c/0x1b0
[ 93.744890] lr : debug_print_object+0x13c/0x1b0
[ 93.749555] sp : ffffffacf5bc7940
[ 93.752978] x29: ffffffacf5bc7940 x28: dfffffd000000000
[ 93.758448] x27: ffffffacdb11a800 x26: dfffffd000000000
[ 93.763916] x25: ffffffd0734f856c x24: dfffffd000000000
[ 93.769389] x23: 0000000000000000 x22: ffffffd0733c35b0
[ 93.774860] x21: ffffffd0751994a0 x20: ffffffd075ec27c0
[ 93.780338] x19: ffffffd075199100 x18: 00000000000276e0
[ 93.785814] x17: 0000000000000000 x16: dfffffd000000000
[ 93.791291] x15: ffffffffffffffff x14: 6e6968207473696c
[ 93.796768] x13: 0000000000000000 x12: ffffffd075e2b000
[ 93.802244] x11: 0000000000000001 x10: 0000000000000000
[ 93.807723] x9 : d13400dff1921900 x8 : d13400dff1921900
[ 93.813200] x7 : 0000000000000000 x6 : 0000000000000000
[ 93.818676] x5 : 0000000000000080 x4 : 0000000000000000
[ 93.824152] x3 : ffffffd0732a0fa4 x2 : 0000000000000001
[ 93.829628] x1 : ffffffacf5bc7580 x0 : 0000000000000061
[ 93.835104] Call trace:
[ 93.837644] debug_print_object+0x13c/0x1b0
[ 93.841963] __debug_check_no_obj_freed+0x25c/0x3c0
[ 93.846987] debug_check_no_obj_freed+0x18/0x20
[ 93.851669] slab_free_freelist_hook+0xbc/0x1e4
[ 93.856346] kfree+0xfc/0x2f4
[ 93.859416] rpmsg_ctrldev_release_device+0x78/0xb8
[ 93.864445] device_release+0x84/0x168
[ 93.868310] kobject_cleanup+0x12c/0x298
[ 93.872356] kobject_delayed_cleanup+0x10/0x18
[ 93.876948] process_one_work+0x578/0x92c
[ 93.881086] worker_thread+0x804/0xcf8
[ 93.884963] kthread+0x2a8/0x314
[ 93.888303] ret_from_fork+0x10/0x18
The cdev_device_add/del() API was created to address this issue (see
commit '233ed09d7fda ("chardev: add helper function to register char
devs with a struct device")'), use it instead of cdev add/del().
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在安全漏洞，该漏洞源于 rpmsg:char 模块 rpmsg_ctrldev 和 cdev 释放存在竞争。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2022-48759 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2022-48759 其他参考 (7)
同批安全公告 · Linux · 2024-06-20 · 共 67 条
| CVE-2022-48711 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-38620 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2021-47620 | 8.1 HIGH | Linux kernel安全漏洞 |
| CVE-2022-48743 | 8.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48720 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48751 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48716 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48771 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48729 | 7.8 HIGH | Linux kernel安全漏洞 |
| CVE-2022-48733 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48742 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48721 | 7.8 HIGH | Linux kernel安全漏洞 |
| CVE-2022-48754 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48762 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48735 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48726 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48744 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48727 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48717 | 7.1 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-48739 | 7.1 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 67 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2022-48759
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