CVE-2024-35870

一、漏洞信息
 漏洞编号：[CVE-2024-35870](https://nvd.nist.gov/vuln/detail/CVE-2024-35870)
 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 V2.0分值：
  BaseScore：0.0 None
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:smb: client: fix UAF in smb2_reconnect_server()The UAF bug is due to smb2_reconnect_server() accessing a session thatis already being teared down by another thread that is executing__cifs_put_smb_ses().  This can happen when (a) the client hasconnection to the server but no session or (b) another thread ends upsetting @ses->ses_status again to something different thanSES_EXITING.To fix this, we need to make sure to unconditionally set@ses->ses_status to SES_EXITING and prevent any other threads fromsetting a new status while we re still tearing it down.The following can be reproduced by adding some delay to right afterthe ipc is freed in __cifs_put_smb_ses() - which will givesmb2_reconnect_server() worker a chance to run and then accessing@ses->ipc:kinit ...mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10[disconnect srv]ls /mnt/1 &>/dev/nullsleep 30kdestroy[reconnect srv]sleep 10umount /mnt/1...CIFS: VFS: Verify user has a krb5 ticket and keyutils is installedCIFS: VFS:   srv Send error in SessSetup = -126CIFS: VFS: Verify user has a krb5 ticket and keyutils is installedCIFS: VFS:   srv Send error in SessSetup = -126general protection fault, probably for non-canonical address0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTICPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc3904/01/2014Workqueue: cifsiod smb2_reconnect_server [cifs]RIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0Code: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 adde 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 <48> 8b 01 48 39 f8 757b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8RSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83RAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6bRDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800RBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000R13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000FS: 0000000000000000(0000) GS:ffff888157c00000(0000)knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0PKRU: 55555554Call Trace: <TASK> ? die_addr+0x36/0x90 ? exc_general_protection+0x1c1/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? __list_del_entry_valid_or_report+0x33/0xf0 __cifs_put_smb_ses+0x1ae/0x500 [cifs] smb2_reconnect_server+0x4ed/0x710 [cifs] process_one_work+0x205/0x6b0 worker_thread+0x191/0x360 ? __pfx_worker_thread+0x10/0x10 kthread+0xe2/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>
 漏洞公开时间：2024-05-19 17:15:08
 漏洞创建时间：2024-05-19 17:18:52
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-35870
<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/24a9799aa8efecd0eb55a75e35f9d8e6400063aa |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/45f2beda1f1bc3d962ec07db1ccc3197c25499a5 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-35870 | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-35870 | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| suse_bugzilla | https://git.kernel.org/stable/c/24a9799aa8efecd0eb55a75e35f9d8e6400063aa | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| suse_bugzilla | https://git.kernel.org/stable/c/45f2beda1f1bc3d962ec07db1ccc3197c25499a5 | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| suse_bugzilla | https://git.kernel.org/stable/c/6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0 | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-35870.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1224672 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024051940-CVE-2024-35870-3c02@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2281740 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:4106 | https://bugzilla.redhat.com/show_bug.cgi?id=2281740 |
| redhat_bugzilla | https://access.redhat.com/errata/RHSA-2024:4108 | https://bugzilla.redhat.com/show_bug.cgi?id=2281740 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-35870 | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://git.kernel.org/linus/24a9799aa8efecd0eb55a75e35f9d8e6400063aa (6.9-rc3) | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://git.kernel.org/stable/c/6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0 | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://git.kernel.org/stable/c/45f2beda1f1bc3d962ec07db1ccc3197c25499a5 | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://git.kernel.org/stable/c/24a9799aa8efecd0eb55a75e35f9d8e6400063aa | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-35870 | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-35870 | https://ubuntu.com/security/CVE-2024-35870 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-35870 | https://ubuntu.com/security/CVE-2024-35870 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-35870 |
| cve_search |  | https://git.kernel.org/stable/c/6202996a1c1887e83d0b3b0fcd86d0e5e6910ea0 |
| cve_search |  | https://git.kernel.org/stable/c/45f2beda1f1bc3d962ec07db1ccc3197c25499a5 |
| cve_search |  | https://git.kernel.org/stable/c/24a9799aa8efecd0eb55a75e35f9d8e6400063aa |

</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  |
| ------- | -------- | ------- | -------- | --------- |
| linux |  | https://git.kernel.org/linus/24a9799aa8efecd0eb55a75e35f9d8e6400063aa | https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 | ubuntu |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
                      In the Linux kernel, the following vulnerability has been resolved:smb: client: fix UAF in smb2_reconnect_server()The UAF bug is due to smb2_reconnect_server() accessing a session thatis already being teared down by another thread that is executing__cifs_put_smb_ses().  This can happen when (a) the client hasconnection to the server but no session or (b) another thread ends upsetting @ses->ses_status again to something different thanSES_EXITING.To fix this, we need to make sure to unconditionally set@ses->ses_status to SES_EXITING and prevent any other threads fromsetting a new status while we re still tearing it down.The following can be reproduced by adding some delay to right afterthe ipc is freed in __cifs_put_smb_ses() - which will givesmb2_reconnect_server() worker a chance to run and then accessing@ses->ipc:kinit ...mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10[disconnect srv]ls /mnt/1 &>/dev/nullsleep 30kdestroy[reconnect srv]sleep 10umount /mnt/1...CIFS: VFS: Verify user has a krb5 ticket and keyutils is installedCIFS: VFS:   srv Send error in SessSetup = -126CIFS: VFS: Verify user has a krb5 ticket and keyutils is installedCIFS: VFS:   srv Send error in SessSetup = -126general protection fault, probably for non-canonical address0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTICPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc3904/01/2014Workqueue: cifsiod smb2_reconnect_server [cifs]RIP: 0010:__list_del_entry_valid_or_report+0x33/0xf0Code: 4f 08 48 85 d2 74 42 48 85 c9 74 59 48 b8 00 01 00 00 00 00 adde 48 39 c2 74 61 48 b8 22 01 00 00 00 00 74 69 <48> 8b 01 48 39 f8 757b 48 8b 72 08 48 39 c6 0f 85 88 00 00 00 b8RSP: 0018:ffffc900001bfd70 EFLAGS: 00010a83RAX: dead000000000122 RBX: ffff88810da53838 RCX: 6b6b6b6b6b6b6b6bRDX: 6b6b6b6b6b6b6b6b RSI: ffffffffc02f6878 RDI: ffff88810da53800RBP: ffff88810da53800 R08: 0000000000000001 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000001 R12: ffff88810c064000R13: 0000000000000001 R14: ffff88810c064000 R15: ffff8881039cc000FS: 0000000000000000(0000) GS:ffff888157c00000(0000)knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007fe3728b1000 CR3: 000000010caa4000 CR4: 0000000000750ef0PKRU: 55555554Call Trace: <TASK> ? die_addr+0x36/0x90 ? exc_general_protection+0x1c1/0x3f0 ? asm_exc_general_protection+0x26/0x30 ? __list_del_entry_valid_or_report+0x33/0xf0 __cifs_put_smb_ses+0x1ae/0x500 [cifs] smb2_reconnect_server+0x4ed/0x710 [cifs] process_one_work+0x205/0x6b0 worker_thread+0x191/0x360 ? __pfx_worker_thread+0x10/0x10 kthread+0xe2/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x34/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>          
 openEuler评分：
  5.5
 Vector：CVSS：2.0/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP1(4.19.90):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):受影响
3.openEuler-22.03-LTS-SP1(5.10.0):受影响
4.openEuler-22.03-LTS-SP3(5.10.0):受影响
5.openEuler-22.03-LTS(5.10.0):不受影响
6.openEuler-22.03-LTS-SP2(5.10.0):不受影响
7.openEuler-22.03-LTS-SP4(5.10.0):不受影响
8.master(6.1.0):不受影响
9.openEuler-22.03-LTS-Next(5.10.0):不受影响
10.openEuler-24.03-LTS(6.6.0):不受影响
11.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS(5.10.0):否
4.openEuler-22.03-LTS-SP1(5.10.0):否
5.openEuler-22.03-LTS-SP2(5.10.0):否
6.openEuler-22.03-LTS-SP3(5.10.0):否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next(5.10.0):否
9.openEuler-24.03-LTS(6.6.0):否
10.openEuler-24.03-LTS-Next(6.6.0):否
11.openEuler-22.03-LTS-SP4(5.10.0):否

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