CVE-2022-48674

一、漏洞信息
 漏洞编号：[CVE-2022-48674](https://nvd.nist.gov/vuln/detail/CVE-2022-48674)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:erofs: fix pcluster use-after-free on UP platformsDuring stress testing with CONFIG_SMP disabled, KASAN reports as below:==================================================================BUG: KASAN: use-after-free in __mutex_lock+0xe5/0xc30Read of size 8 at addr ffff8881094223f8 by task stress/7789CPU: 0 PID: 7789 Comm: stress Not tainted 6.0.0-rc1-00002-g0d53d2e882f9 #3Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011Call Trace: <TASK>.. __mutex_lock+0xe5/0xc30.. z_erofs_do_read_page+0x8ce/0x1560.. z_erofs_readahead+0x31c/0x580..Freed by task 7787 kasan_save_stack+0x1e/0x40 kasan_set_track+0x20/0x30 kasan_set_free_info+0x20/0x40 __kasan_slab_free+0x10c/0x190 kmem_cache_free+0xed/0x380 rcu_core+0x3d5/0xc90 __do_softirq+0x12d/0x389Last potentially related work creation: kasan_save_stack+0x1e/0x40 __kasan_record_aux_stack+0x97/0xb0 call_rcu+0x3d/0x3f0 erofs_shrink_workstation+0x11f/0x210 erofs_shrink_scan+0xdc/0x170 shrink_slab.constprop.0+0x296/0x530 drop_slab+0x1c/0x70 drop_caches_sysctl_handler+0x70/0x80 proc_sys_call_handler+0x20a/0x2f0 vfs_write+0x555/0x6c0 ksys_write+0xbe/0x160 do_syscall_64+0x3b/0x90The root cause is that erofs_workgroup_unfreeze() doesn t reset toorig_val thus it causes a race that the pcluster reuses unexpectedlybefore freeing.Since UP platforms are quite rare now, such path becomes unnecessary.Let s drop such specific-designed path directly instead.
 漏洞公开时间：2024-05-03 23:15:07
 漏洞创建时间：2024-05-03 15:16:19
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-48674
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/2f44013e39984c127c6efedf70e6b5f4e9dcf315 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/8ddd001cef5e82d19192e6861068463ecca5f556 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/94c34faaafe7b55adc2d8d881db195b646959b9e |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48674 | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48674.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://git.kernel.org/stable/c/8ddd001cef5e82d19192e6861068463ecca5f556 | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://git.kernel.org/stable/c/94c34faaafe7b55adc2d8d881db195b646959b9e | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://git.kernel.org/stable/c/2f44013e39984c127c6efedf70e6b5f4e9dcf315 | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2022-48674 | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2278937 | https://bugzilla.suse.com/show_bug.cgi?id=1223942 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024050318-CVE-2022-48674-b876@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2278937 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2022-48674 | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://git.kernel.org/linus/2f44013e39984c127c6efedf70e6b5f4e9dcf315 (6.0-rc5) | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://git.kernel.org/stable/c/8ddd001cef5e82d19192e6861068463ecca5f556 | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://git.kernel.org/stable/c/94c34faaafe7b55adc2d8d881db195b646959b9e | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://git.kernel.org/stable/c/2f44013e39984c127c6efedf70e6b5f4e9dcf315 | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2022-48674 | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2022-48674 | https://ubuntu.com/security/CVE-2022-48674 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2022-48674 | https://ubuntu.com/security/CVE-2022-48674 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2022-48674 |
| cve_search |  | https://git.kernel.org/stable/c/8ddd001cef5e82d19192e6861068463ecca5f556 |
| cve_search |  | https://git.kernel.org/stable/c/94c34faaafe7b55adc2d8d881db195b646959b9e |
| cve_search |  | https://git.kernel.org/stable/c/2f44013e39984c127c6efedf70e6b5f4e9dcf315 |

</details>

漏洞分析指导链接：
  https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
 漏洞数据来源:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/2f44013e39984c127c6efedf70e6b5f4e9dcf315 |  | nvd |
|  |  | https://git.kernel.org/stable/c/8ddd001cef5e82d19192e6861068463ecca5f556 |  | nvd |
|  |  | https://git.kernel.org/stable/c/94c34faaafe7b55adc2d8d881db195b646959b9e |  | nvd |
| linux |  | https://git.kernel.org/linus/2f44013e39984c127c6efedf70e6b5f4e9dcf315 | https://git.kernel.org/linus/73f5c66df3e26ab750cefcb9a3e08c71c9f79cad | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
  Reserved.
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.6.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
  1.openEuler-20.03-LTS-SP4(4.19.90):正常修复
2.openEuler-22.03-LTS-SP3(5.10.0):正常修复
3.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
6.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

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