CVE-2022-48673

一、漏洞信息
 漏洞编号：[CVE-2022-48673](https://nvd.nist.gov/vuln/detail/CVE-2022-48673)
 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：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:net/smc: Fix possible access to freed memory in link clearAfter modifying the QP to the Error state, all RX WR would be completedwith WC in IB_WC_WR_FLUSH_ERR status. Current implementation does notwait for it is done, but destroy the QP and free the link group directly.So there is a risk that accessing the freed memory in tasklet context.Here is a crash example: BUG: unable to handle page fault for address: ffffffff8f220860 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD f7300e067 P4D f7300e067 PUD f7300f063 PMD 8c4e45063 PTE 800ffff08c9df060 Oops: 0002 [#1] SMP PTI CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Tainted: G S         OE     5.10.0-0607+ #23 Hardware name: Inspur NF5280M4/YZMB-00689-101, BIOS 4.1.20 07/09/2018 RIP: 0010:native_queued_spin_lock_slowpath+0x176/0x1b0 Code: f3 90 48 8b 32 48 85 f6 74 f6 eb d5 c1 ee 12 83 e0 03 83 ee 01 48 c1 e0 05 48 63 f6 48 05 00 c8 02 00 48 03 04 f5 00 09 98 8e <48> 89 10 8b 42 08 85 c0 75 09 f3 90 8b 42 08 85 c0 74 f7 48 8b 32 RSP: 0018:ffffb3b6c001ebd8 EFLAGS: 00010086 RAX: ffffffff8f220860 RBX: 0000000000000246 RCX: 0000000000080000 RDX: ffff91db1f86c800 RSI: 000000000000173c RDI: ffff91db62bace00 RBP: ffff91db62bacc00 R08: 0000000000000000 R09: c00000010000028b R10: 0000000000055198 R11: ffffb3b6c001ea58 R12: ffff91db80e05010 R13: 000000000000000a R14: 0000000000000006 R15: 0000000000000040 FS:  0000000000000000(0000) GS:ffff91db1f840000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff8f220860 CR3: 00000001f9580004 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  <IRQ>  _raw_spin_lock_irqsave+0x30/0x40  mlx5_ib_poll_cq+0x4c/0xc50 [mlx5_ib]  smc_wr_rx_tasklet_fn+0x56/0xa0 [smc]  tasklet_action_common.isra.21+0x66/0x100  __do_softirq+0xd5/0x29c  asm_call_irq_on_stack+0x12/0x20  </IRQ>  do_softirq_own_stack+0x37/0x40  irq_exit_rcu+0x9d/0xa0  sysvec_call_function_single+0x34/0x80  asm_sysvec_call_function_single+0x12/0x20
 漏洞公开时间：2024-05-03 23:15:07
 漏洞创建时间：2024-05-03 23:18:41
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-48673
<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/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-48673 | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2022-48673 | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| suse_bugzilla | https://git.kernel.org/stable/c/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| suse_bugzilla | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-48673.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2278938 | https://bugzilla.suse.com/show_bug.cgi?id=1223934 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024050318-CVE-2022-48673-1692@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2278938 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2022-48673 | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://git.kernel.org/linus/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 (6.0-rc5) | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://git.kernel.org/stable/c/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2022-48673 | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2022-48673 | https://ubuntu.com/security/CVE-2022-48673 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2022-48673 | https://ubuntu.com/security/CVE-2022-48673 |
| cve_search |  | https://git.kernel.org/stable/c/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde |
| cve_search |  | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 |  |

</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/89fcb70f1acd6b0bbf2f7bfbf45d7aa75a9bdcde |  | nvd |
|  |  | https://git.kernel.org/stable/c/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 |  | nvd |
| linux |  | https://git.kernel.org/linus/e9b1a4f867ae9c1dbd1d71cd09cbdb3239fb4968 | https://git.kernel.org/linus/bd4ad57718cc86d2972a20f9791cd079996a4dd6 | 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:net/smc: Fix possible access to freed memory in link clearAfter modifying the QP to the Error state, all RX WR would be completedwith WC in IB_WC_WR_FLUSH_ERR status. Current implementation does notwait for it is done, but destroy the QP and free the link group directly.So there is a risk that accessing the freed memory in tasklet context.Here is a crash example: BUG: unable to handle page fault for address: ffffffff8f220860 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD f7300e067 P4D f7300e067 PUD f7300f063 PMD 8c4e45063 PTE 800ffff08c9df060 Oops: 0002 [#1] SMP PTI CPU: 1 PID: 0 Comm: swapper/1 Kdump: loaded Tainted: G S         OE     5.10.0-0607+ #23 Hardware name: Inspur NF5280M4/YZMB-00689-101, BIOS 4.1.20 07/09/2018 RIP: 0010:native_queued_spin_lock_slowpath+0x176/0x1b0 Code: f3 90 48 8b 32 48 85 f6 74 f6 eb d5 c1 ee 12 83 e0 03 83 ee 01 48 c1 e0 05 48 63 f6 48 05 00 c8 02 00 48 03 04 f5 00 09 98 8e <48> 89 10 8b 42 08 85 c0 75 09 f3 90 8b 42 08 85 c0 74 f7 48 8b 32 RSP: 0018:ffffb3b6c001ebd8 EFLAGS: 00010086 RAX: ffffffff8f220860 RBX: 0000000000000246 RCX: 0000000000080000 RDX: ffff91db1f86c800 RSI: 000000000000173c RDI: ffff91db62bace00 RBP: ffff91db62bacc00 R08: 0000000000000000 R09: c00000010000028b R10: 0000000000055198 R11: ffffb3b6c001ea58 R12: ffff91db80e05010 R13: 000000000000000a R14: 0000000000000006 R15: 0000000000000040 FS:  0000000000000000(0000) GS:ffff91db1f840000(0000) knlGS:0000000000000000 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffff8f220860 CR3: 00000001f9580004 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:  <IRQ>  _raw_spin_lock_irqsave+0x30/0x40  mlx5_ib_poll_cq+0x4c/0xc50 [mlx5_ib]  smc_wr_rx_tasklet_fn+0x56/0xa0 [smc]  tasklet_action_common.isra.21+0x66/0x100  __do_softirq+0xd5/0x29c  asm_call_irq_on_stack+0x12/0x20  </IRQ>  do_softirq_own_stack+0x37/0x40  irq_exit_rcu+0x9d/0xa0  sysvec_call_function_single+0x34/0x80  asm_sysvec_call_function_single+0x12/0x20  
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-22.03-LTS-SP1(5.10.0):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-20.03-LTS-SP4(4.19.90):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS(6.6.0):不受影响
7.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-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(6.1.0):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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1738

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