CVE-2023-52587

一、漏洞信息
 漏洞编号：[CVE-2023-52587](https://nvd.nist.gov/vuln/detail/CVE-2023-52587)
 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
 CVSS V2.0分值：
  BaseScore：0.0 Low
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:IB/ipoib: Fix mcast list lockingReleasing the `priv->lock` while iterating the `priv->multicast_list` in`ipoib_mcast_join_task()` opens a window for `ipoib_mcast_dev_flush()` toremove the items while in the middle of iteration. If the mcast is removedwhile the lock was dropped, the for loop spins forever resulting in a hardlockup (as was reported on RHEL 4.18.0-372.75.1.el8_6 kernel):    Task A (kworker/u72:2 below)       | Task B (kworker/u72:0 below)    -----------------------------------+-----------------------------------    ipoib_mcast_join_task(work)        | ipoib_ib_dev_flush_light(work)      spin_lock_irq(&priv->lock)       | __ipoib_ib_dev_flush(priv, ...)      list_for_each_entry(mcast,       | ipoib_mcast_dev_flush(dev = priv->dev)          &priv->multicast_list, list) |        ipoib_mcast_join(dev, mcast)   |          spin_unlock_irq(&priv->lock) |                                       |   spin_lock_irqsave(&priv->lock, flags)                                       |   list_for_each_entry_safe(mcast, tmcast,                                       |                  &priv->multicast_list, list)                                       |     list_del(&mcast->list);                                       |     list_add_tail(&mcast->list, &remove_list)                                       |   spin_unlock_irqrestore(&priv->lock, flags)          spin_lock_irq(&priv->lock)   |                                       |   ipoib_mcast_remove_list(&remove_list)   (Here, `mcast` is no longer on the  |     list_for_each_entry_safe(mcast, tmcast,    `priv->multicast_list` and we keep |                            remove_list, list)    spinning on the `remove_list` of   |  >>>  wait_for_completion(&mcast->done)    the other thread which is blocked  |    and the list is still valid on     |    it s stack.)Fix this by keeping the lock held and changing to GFP_ATOMIC to preventeventual sleeps.Unfortunately we could not reproduce the lockup and confirm this fix butbased on the code review I think this fix should address such lockups.crash> bc 31PID: 747      TASK: ff1c6a1a007e8000  CPU: 31   COMMAND:  kworker/u72:2 --    [exception RIP: ipoib_mcast_join_task+0x1b1]    RIP: ffffffffc0944ac1  RSP: ff646f199a8c7e00  RFLAGS: 00000002    RAX: 0000000000000000  RBX: ff1c6a1a04dc82f8  RCX: 0000000000000000                                  work (&priv->mcast_task{,.work})    RDX: ff1c6a192d60ac68  RSI: 0000000000000286  RDI: ff1c6a1a04dc8000           &mcast->list    RBP: ff646f199a8c7e90   R8: ff1c699980019420   R9: ff1c6a1920c9a000    R10: ff646f199a8c7e00  R11: ff1c6a191a7d9800  R12: ff1c6a192d60ac00                                                         mcast    R13: ff1c6a1d82200000  R14: ff1c6a1a04dc8000  R15: ff1c6a1a04dc82d8           dev                    priv (&priv->lock)     &priv->multicast_list (aka head)    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018--- <NMI exception stack> --- #5 [ff646f199a8c7e00] ipoib_mcast_join_task+0x1b1 at ffffffffc0944ac1 [ib_ipoib] #6 [ff646f199a8c7e98] process_one_work+0x1a7 at ffffffff9bf10967crash> rx ff646f199a8c7e68ff646f199a8c7e68:  ff1c6a1a04dc82f8 <<< work = &priv->mcast_task.workcrash> list -hO ipoib_dev_priv.multicast_list ff1c6a1a04dc8000(empty)crash> ipoib_dev_priv.mcast_task.work.func,mcast_mutex.owner.counter ff1c6a1a04dc8000  mcast_task.work.func = 0xffffffffc0944910 <ipoib_mcast_join_task>,  mcast_mutex.owner.counter = 0xff1c69998efec000crash> b 8PID: 8        TASK: ff1c69998efec000  CPU: 33   COMMAND:  kworker/u72:0 -- #3 [ff646f1980153d50] wait_for_completion+0x96 at ffffffff9c7d7646 #4 [ff646f1980153d90] ipoib_mcast_remove_list+0x56 at ffffffffc0944dc6 [ib_ipoib] #5 [ff646f1980153de8] ipoib_mcast_dev_flush+0x1a7 at ffffffffc09455a7 [ib_ipoib] #6 [ff646f1980153e58] __ipoib_ib_dev_flush+0x1a4 at ffffffffc09431a4 [ib_ipoib] #7 [ff---truncated---
 漏洞公开时间：2024-03-06 15:15:07
 漏洞创建时间：2024-03-06 21:49:58
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2023-52587
<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/342258fb46d66c1b4c7e2c3717ac01e10c03cf18 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4c8922ae8eb8dcc1e4b7d1059d97a8334288d825 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4f973e211b3b1c6d36f7c6a19239d258856749f9 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/5108a2dc2db5630fb6cd58b8be80a0c134bc310a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/615e3adc2042b7be4ad122a043fc9135e6342c90 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7c7bd4d561e9dc6f5b7df9e184974915f6701a89 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ac2630fd3c90ffec34a0bfc4d413668538b0e8f2 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ed790bd0903ed3352ebf7f650d910f49b7319b34 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-52587 | https://bugzilla.suse.com/show_bug.cgi?id=1221082 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2023-52587 | https://bugzilla.suse.com/show_bug.cgi?id=1221082 |
| suse_bugzilla | https://lore.kernel.org/linux-cve-announce/2024030644-CVE-2023-52587-5479@gregkh/ | https://bugzilla.suse.com/show_bug.cgi?id=1221082 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4f973e211b3b | https://bugzilla.suse.com/show_bug.cgi?id=1221082 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024030644-CVE-2023-52587-5479@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2268331 |
| ubuntu | https://git.kernel.org/linus/4f973e211b3b1c6d36f7c6a19239d258856749f9 (6.8-rc1) | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/4c8922ae8eb8dcc1e4b7d1059d97a8334288d825 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/615e3adc2042b7be4ad122a043fc9135e6342c90 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/ac2630fd3c90ffec34a0bfc4d413668538b0e8f2 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/ed790bd0903ed3352ebf7f650d910f49b7319b34 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/5108a2dc2db5630fb6cd58b8be80a0c134bc310a | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/342258fb46d66c1b4c7e2c3717ac01e10c03cf18 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/7c7bd4d561e9dc6f5b7df9e184974915f6701a89 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://git.kernel.org/stable/c/4f973e211b3b1c6d36f7c6a19239d258856749f9 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://ubuntu.com/security/notices/USN-6688-1 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2023-52587 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2023-52587 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2023-52587 | https://ubuntu.com/security/CVE-2023-52587 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2023-52587 | https://ubuntu.com/security/CVE-2023-52587 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2023-52587 |
| cve_search |  | https://git.kernel.org/stable/c/4c8922ae8eb8dcc1e4b7d1059d97a8334288d825 |
| cve_search |  | https://git.kernel.org/stable/c/615e3adc2042b7be4ad122a043fc9135e6342c90 |
| cve_search |  | https://git.kernel.org/stable/c/ac2630fd3c90ffec34a0bfc4d413668538b0e8f2 |
| cve_search |  | https://git.kernel.org/stable/c/ed790bd0903ed3352ebf7f650d910f49b7319b34 |
| cve_search |  | https://git.kernel.org/stable/c/5108a2dc2db5630fb6cd58b8be80a0c134bc310a |
| cve_search |  | https://git.kernel.org/stable/c/342258fb46d66c1b4c7e2c3717ac01e10c03cf18 |
| cve_search |  | https://git.kernel.org/stable/c/7c7bd4d561e9dc6f5b7df9e184974915f6701a89 |
| cve_search |  | https://git.kernel.org/stable/c/4f973e211b3b1c6d36f7c6a19239d258856749f9 |
| ubuntu | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52587 | https://ubuntu.com/security/CVE-2023-52587 |

</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/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4f973e211b3b |  | suse_bugzilla |
| linux |  | https://git.kernel.org/linus/4f973e211b3b1c6d36f7c6a19239d258856749f9 | 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:IB/ipoib: Fix mcast list lockingReleasing the `priv->lock` while iterating the `priv->multicast_list` in`ipoib_mcast_join_task()` opens a window for `ipoib_mcast_dev_flush()` toremove the items while in the middle of iteration. If the mcast is removedwhile the lock was dropped, the for loop spins forever resulting in a hardlockup (as was reported on RHEL 4.18.0-372.75.1.el8_6 kernel):    Task A (kworker/u72:2 below)       | Task B (kworker/u72:0 below)    -----------------------------------+-----------------------------------    ipoib_mcast_join_task(work)        | ipoib_ib_dev_flush_light(work)      spin_lock_irq(&priv->lock)       | __ipoib_ib_dev_flush(priv, ...)      list_for_each_entry(mcast,       | ipoib_mcast_dev_flush(dev = priv->dev)          &priv->multicast_list, list) |        ipoib_mcast_join(dev, mcast)   |          spin_unlock_irq(&priv->lock) |                                       |   spin_lock_irqsave(&priv->lock, flags)                                       |   list_for_each_entry_safe(mcast, tmcast,                                       |                  &priv->multicast_list, list)                                       |     list_del(&mcast->list);                                       |     list_add_tail(&mcast->list, &remove_list)                                       |   spin_unlock_irqrestore(&priv->lock, flags)          spin_lock_irq(&priv->lock)   |                                       |   ipoib_mcast_remove_list(&remove_list)   (Here, `mcast` is no longer on the  |     list_for_each_entry_safe(mcast, tmcast,    `priv->multicast_list` and we keep |                            remove_list, list)    spinning on the `remove_list` of   |  >>>  wait_for_completion(&mcast->done)    the other thread which is blocked  |    and the list is still valid on     |    it s stack.)Fix this by keeping the lock held and changing to GFP_ATOMIC to preventeventual sleeps.Unfortunately we could not reproduce the lockup and confirm this fix butbased on the code review I think this fix should address such lockups.crash> bc 31PID: 747      TASK: ff1c6a1a007e8000  CPU: 31   COMMAND:  kworker/u72:2 --    [exception RIP: ipoib_mcast_join_task+0x1b1]    RIP: ffffffffc0944ac1  RSP: ff646f199a8c7e00  RFLAGS: 00000002    RAX: 0000000000000000  RBX: ff1c6a1a04dc82f8  RCX: 0000000000000000                                  work (&priv->mcast_task{,.work})    RDX: ff1c6a192d60ac68  RSI: 0000000000000286  RDI: ff1c6a1a04dc8000           &mcast->list    RBP: ff646f199a8c7e90   R8: ff1c699980019420   R9: ff1c6a1920c9a000    R10: ff646f199a8c7e00  R11: ff1c6a191a7d9800  R12: ff1c6a192d60ac00                                                         mcast    R13: ff1c6a1d82200000  R14: ff1c6a1a04dc8000  R15: ff1c6a1a04dc82d8           dev                    priv (&priv->lock)     &priv->multicast_list (aka head)    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018--- <NMI exception stack> --- #5 [ff646f199a8c7e00] ipoib_mcast_join_task+0x1b1 at ffffffffc0944ac1 [ib_ipoib] #6 [ff646f199a8c7e98] process_one_work+0x1a7 at ffffffff9bf10967crash> rx ff646f199a8c7e68ff646f199a8c7e68:  ff1c6a1a04dc82f8 <<< work = &priv->mcast_task.workcrash> list -hO ipoib_dev_priv.multicast_list ff1c6a1a04dc8000(empty)crash> ipoib_dev_priv.mcast_task.work.func,mcast_mutex.owner.counter ff1c6a1a04dc8000  mcast_task.work.func = 0xffffffffc0944910 <ipoib_mcast_join_task>,  mcast_mutex.owner.counter = 0xff1c69998efec000crash> b 8PID: 8        TASK: ff1c69998efec000  CPU: 33   COMMAND:  kworker/u72:0 -- #3 [ff646f1980153d50] wait_for_completion+0x96 at ffffffff9c7d7646 #4 [ff646f1980153d90] ipoib_mcast_remove_list+0x56 at ffffffffc0944dc6 [ib_ipoib] #5 [ff646f1980153de8] ipoib_mcast_dev_flush+0x1a7 at ffffffffc09455a7 [ib_ipoib] #6 [ff646f1980153e58] __ipoib_ib_dev_flush+0x1a4 at ffffffffc09431a4 [ib_ipoib] #7 [ff---truncated---   
 openEuler评分：
  4.7
 Vector：CVSS：2.0/AV:L/AC:H/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-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(5.10.0):受影响
4.openEuler-22.03-LTS-SP1(5.10.0):受影响
5.openEuler-22.03-LTS-SP2(5.10.0):受影响
6.openEuler-22.03-LTS-SP3(5.10.0):受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next(5.10.0):不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next: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:否
10.openEuler-24.03-LTS-Next:否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1487

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