CVE-2024-36476

一、漏洞信息
 漏洞编号：[CVE-2024-36476](https://nvd.nist.gov/vuln/detail/CVE-2024-36476)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 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:RDMA/rtrs: Ensure  ib_sge list  is accessibleMove the declaration of the  ib_sge list  variable outside the always_invalidate  block to ensure it remains accessible for usethroughout the function.Previously,  ib_sge list  was declared within the  always_invalidate block, limiting its accessibility, then caused a BUG: kernel NULL pointer dereference [1]. ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2d0 ? search_module_extables+0x19/0x60 ? search_bpf_extables+0x5f/0x80 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? memcpy_orig+0xd5/0x140 rxe_mr_copy+0x1c3/0x200 [rdma_rxe] ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe] copy_data+0xa5/0x230 [rdma_rxe] rxe_requester+0xd9b/0xf70 [rdma_rxe] ? finish_task_switch.isra.0+0x99/0x2e0 rxe_sender+0x13/0x40 [rdma_rxe] do_task+0x68/0x1e0 [rdma_rxe] process_one_work+0x177/0x330 worker_thread+0x252/0x390 ? __pfx_worker_thread+0x10/0x10This change ensures the variable is available for subsequent operationsthat require it.[1] https://lore.kernel.org/linux-rdma/
 漏洞公开时间：2025-01-15 21:15:09
 漏洞创建时间：2025-01-17 01:11:17
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-36476
<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/143378075904e78b3b2a810099bcc3b3d82d762f |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-36476 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-36476.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/143378075904e78b3b2a810099bcc3b3d82d762f | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-36476 | https://bugzilla.suse.com/show_bug.cgi?id=1235902 |
| redhat_bugzilla | https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/ | https://bugzilla.redhat.com/show_bug.cgi?id=2338183 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025011531-CVE-2024-36476-b2a1@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2338183 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-36476 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-36476 |
| mageia |  | http://advisories.mageia.org/MGASA-2025-0030.html |

</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/143378075904e78b3b2a810099bcc3b3d82d762f |  | nvd |
|  |  | https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a |  | nvd |
|  |  | https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0 |  | nvd |
|  |  | https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722 |  | nvd |
|  |  | https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0 |  | nvd |
|  |  | https://git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3 |  | nvd |
| linux_kernel | 5.10.233 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7eaa71f56a6f7ab87957213472dc6d4055862722Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |
| linux_kernel | 5.15.176 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=143378075904e78b3b2a810099bcc3b3d82d762fIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |
| linux_kernel | 6.1.124 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=32e1e748a85bd52b20b3857d80fd166d22fa455aIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |
| linux_kernel | 6.6.70 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b238f61cc394d5fef27b26d7d9aa383ebfddabb0Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |
| linux_kernel | 6.12.9 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6ffb5c1885195ae5211a12b4acd2d51843ca41b0Issue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |
| linux_kernel | 6.13-rc6 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=fb514b31395946022f13a08e06a435f53cf9e8b3Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9cb837480424e78ed585376f944088246685aec3 | linuxkernelcves |

</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:RDMA/rtrs: Ensure  ib_sge list  is accessibleMove the declaration of the  ib_sge list  variable outside the always_invalidate  block to ensure it remains accessible for usethroughout the function.Previously,  ib_sge list  was declared within the  always_invalidate block, limiting its accessibility, then caused a BUG: kernel NULL pointer dereference [1]. ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2d0 ? search_module_extables+0x19/0x60 ? search_bpf_extables+0x5f/0x80 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? memcpy_orig+0xd5/0x140 rxe_mr_copy+0x1c3/0x200 [rdma_rxe] ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe] copy_data+0xa5/0x230 [rdma_rxe] rxe_requester+0xd9b/0xf70 [rdma_rxe] ? finish_task_switch.isra.0+0x99/0x2e0 rxe_sender+0x13/0x40 [rdma_rxe] do_task+0x68/0x1e0 [rdma_rxe] process_one_work+0x177/0x330 worker_thread+0x252/0x390 ? __pfx_worker_thread+0x10/0x10This change ensures the variable is available for subsequent operationsthat require it.[1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/
 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-SP3(5.10.0):受影响
2.openEuler-22.03-LTS-SP4(5.10.0):受影响
3.openEuler-24.03-LTS(6.6.0):受影响
4.openEuler-24.03-LTS-SP1(6.6.0):受影响
5.openEuler-20.03-LTS-SP4(4.19.90):不受影响
6.master(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-SP3(5.10.0):否
3.master(6.6.0):否
4.openEuler-24.03-LTS(6.6.0):否
5.openEuler-24.03-LTS-Next(6.6.0):否
6.openEuler-22.03-LTS-SP4(5.10.0):否
7.openEuler-24.03-LTS-SP1(6.6.0):否

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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1321

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