CVE-2024-46824

一、漏洞信息
 漏洞编号：[CVE-2024-46824](https://nvd.nist.gov/vuln/detail/CVE-2024-46824)
 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:iommufd: Require drivers to supply the cache_invalidate_user opsIf drivers don t do this then iommufd will oops invalidation ioctls withsomething like:  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000  Mem abort info:    ESR = 0x0000000086000004    EC = 0x21: IABT (current EL), IL = 32 bits    SET = 0, FnV = 0    EA = 0, S1PTW = 0    FSC = 0x04: level 0 translation fault  user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000  [0000000000000000] pgd=0000000000000000, p4d=0000000000000000  Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP  Modules linked in:  CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9  Hardware name: linux,dummy-virt (DT)  pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)  pc : 0x0  lr : iommufd_hwpt_invalidate+0xa4/0x204  sp : ffff800080f3bcc0  x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000  x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000  x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0  x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000  x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8  x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000  x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000  x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000  x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002  x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80  Call trace:   0x0   iommufd_fops_ioctl+0x154/0x274   __arm64_sys_ioctl+0xac/0xf0   invoke_syscall+0x48/0x110   el0_svc_common.constprop.0+0x40/0xe0   do_el0_svc+0x1c/0x28   el0_svc+0x34/0xb4   el0t_64_sync_handler+0x120/0x12c   el0t_64_sync+0x190/0x194All existing drivers implement this op for nesting, this is mostly abisection aid.
 漏洞公开时间：2024-09-27 21:15:14
 漏洞创建时间：2024-10-05 02:06:36
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-46824
<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/89827a4de802765b1ebb401fc1e73a90108c7520 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-46824 | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-46824.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| suse_bugzilla | https://git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520 | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| suse_bugzilla | https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47 | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-46824 | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2315176 | https://bugzilla.suse.com/show_bug.cgi?id=1231113 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024092750-CVE-2024-46824-03d9@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2315176 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-46824 |
| cve_search |  | https://git.kernel.org/stable/c/89827a4de802765b1ebb401fc1e73a90108c7520 |
| cve_search |  | https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47 |

</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/89827a4de802765b1ebb401fc1e73a90108c7520 |  | nvd |
|  |  | https://git.kernel.org/stable/c/a11dda723c6493bb1853bbc61c093377f96e2d47 |  | nvd |

</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:iommufd: Require drivers to supply the cache_invalidate_user opsIf drivers don t do this then iommufd will oops invalidation ioctls withsomething like:  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000  Mem abort info:    ESR = 0x0000000086000004    EC = 0x21: IABT (current EL), IL = 32 bits    SET = 0, FnV = 0    EA = 0, S1PTW = 0    FSC = 0x04: level 0 translation fault  user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000  [0000000000000000] pgd=0000000000000000, p4d=0000000000000000  Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP  Modules linked in:  CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9  Hardware name: linux,dummy-virt (DT)  pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)  pc : 0x0  lr : iommufd_hwpt_invalidate+0xa4/0x204  sp : ffff800080f3bcc0  x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000  x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000  x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0  x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000  x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8  x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000  x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000  x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000  x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002  x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80  Call trace:   0x0   iommufd_fops_ioctl+0x154/0x274   __arm64_sys_ioctl+0xac/0xf0   invoke_syscall+0x48/0x110   el0_svc_common.constprop.0+0x40/0xe0   do_el0_svc+0x1c/0x28   el0_svc+0x34/0xb4   el0t_64_sync_handler+0x120/0x12c   el0t_64_sync+0x190/0x194All existing drivers implement this op for nesting, this is mostly abisection aid.
 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-24.03-LTS(6.6.0):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP1(5.10.0):不受影响
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响
5.openEuler-22.03-LTS-SP4(5.10.0):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-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

原因说明：
  1.master(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2367

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