CVE-2024-56588

一、漏洞信息
 漏洞编号：[CVE-2024-56588](https://nvd.nist.gov/vuln/detail/CVE-2024-56588)
 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:scsi: hisi_sas: Create all dump files during debugfs initializationFor the current debugfs of hisi_sas, after user triggers dump, thedriver allocate memory space to save the register information and createdebugfs files to display the saved information. In this process, thedebugfs files created after each dump.Therefore, when the dump is triggered while the driver is unbind, thefollowing hang occurs:[67840.853907] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0[67840.862947] Mem abort info:[67840.865855]   ESR = 0x0000000096000004[67840.869713]   EC = 0x25: DABT (current EL), IL = 32 bits[67840.875125]   SET = 0, FnV = 0[67840.878291]   EA = 0, S1PTW = 0[67840.881545]   FSC = 0x04: level 0 translation fault[67840.886528] Data abort info:[67840.889524]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000[67840.895117]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0[67840.900284]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0[67840.905709] user pgtable: 4k pages, 48-bit VAs, pgdp=0000002803a1f000[67840.912263] [00000000000000a0] pgd=0000000000000000, p4d=0000000000000000[67840.919177] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP[67840.996435] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)[67841.003628] pc : down_write+0x30/0x98[67841.007546] lr : start_creating.part.0+0x60/0x198[67841.012495] sp : ffff8000b979ba20[67841.016046] x29: ffff8000b979ba20 x28: 0000000000000010 x27: 0000000000024b40[67841.023412] x26: 0000000000000012 x25: ffff20202b355ae8 x24: ffff20202b35a8c8[67841.030779] x23: ffffa36877928208 x22: ffffa368b4972240 x21: ffff8000b979bb18[67841.038147] x20: ffff00281dc1e3c0 x19: fffffffffffffffe x18: 0000000000000020[67841.045515] x17: 0000000000000000 x16: ffffa368b128a530 x15: ffffffffffffffff[67841.052888] x14: ffff8000b979bc18 x13: ffffffffffffffff x12: ffff8000b979bb18[67841.060263] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa368b1289b18[67841.067640] x8 : 0000000000000012 x7 : 0000000000000000 x6 : 00000000000003a9[67841.075014] x5 : 0000000000000000 x4 : ffff002818c5cb00 x3 : 0000000000000001[67841.082388] x2 : 0000000000000000 x1 : ffff002818c5cb00 x0 : 00000000000000a0[67841.089759] Call trace:[67841.092456]  down_write+0x30/0x98[67841.096017]  start_creating.part.0+0x60/0x198[67841.100613]  debugfs_create_dir+0x48/0x1f8[67841.104950]  debugfs_create_files_v3_hw+0x88/0x348 [hisi_sas_v3_hw][67841.111447]  debugfs_snapshot_regs_v3_hw+0x708/0x798 [hisi_sas_v3_hw][67841.118111]  debugfs_trigger_dump_v3_hw_write+0x9c/0x120 [hisi_sas_v3_hw][67841.125115]  full_proxy_write+0x68/0xc8[67841.129175]  vfs_write+0xd8/0x3f0[67841.132708]  ksys_write+0x70/0x108[67841.136317]  __arm64_sys_write+0x24/0x38[67841.140440]  invoke_syscall+0x50/0x128[67841.144385]  el0_svc_common.constprop.0+0xc8/0xf0[67841.149273]  do_el0_svc+0x24/0x38[67841.152773]  el0_svc+0x38/0xd8[67841.156009]  el0t_64_sync_handler+0xc0/0xc8[67841.160361]  el0t_64_sync+0x1a4/0x1a8[67841.164189] Code: b9000882 d2800002 d2800023 f9800011 (c85ffc05)[67841.170443] ---[ end trace 0000000000000000 ]---To fix this issue, create all directories and files during debugfsinitialization. In this way, the driver only needs to allocate memoryspace to save information each time the user triggers dumping.
 漏洞公开时间：2024-12-27 23:15:18
 漏洞创建时间：2024-12-27 23:57:18
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-56588
<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/6c55f99123075e5429850b41b06f7dfffcb708eb |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/9f564f15f88490b484e02442dc4c4b11640ea172 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-56588 | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-56588 | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| suse_bugzilla | https://git.kernel.org/stable/c/6c55f99123075e5429850b41b06f7dfffcb708eb | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| suse_bugzilla | https://git.kernel.org/stable/c/9f564f15f88490b484e02442dc4c4b11640ea172 | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-56588.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2334522 | https://bugzilla.suse.com/show_bug.cgi?id=1235123 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-56588 |

</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>

无
</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:scsi: hisi_sas: Create all dump files during debugfs initializationFor the current debugfs of hisi_sas, after user triggers dump, thedriver allocate memory space to save the register information and createdebugfs files to display the saved information. In this process, thedebugfs files created after each dump.Therefore, when the dump is triggered while the driver is unbind, thefollowing hang occurs:[67840.853907] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0[67840.862947] Mem abort info:[67840.865855]   ESR = 0x0000000096000004[67840.869713]   EC = 0x25: DABT (current EL), IL = 32 bits[67840.875125]   SET = 0, FnV = 0[67840.878291]   EA = 0, S1PTW = 0[67840.881545]   FSC = 0x04: level 0 translation fault[67840.886528] Data abort info:[67840.889524]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000[67840.895117]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0[67840.900284]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0[67840.905709] user pgtable: 4k pages, 48-bit VAs, pgdp=0000002803a1f000[67840.912263] [00000000000000a0] pgd=0000000000000000, p4d=0000000000000000[67840.919177] Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP[67840.996435] pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)[67841.003628] pc : down_write+0x30/0x98[67841.007546] lr : start_creating.part.0+0x60/0x198[67841.012495] sp : ffff8000b979ba20[67841.016046] x29: ffff8000b979ba20 x28: 0000000000000010 x27: 0000000000024b40[67841.023412] x26: 0000000000000012 x25: ffff20202b355ae8 x24: ffff20202b35a8c8[67841.030779] x23: ffffa36877928208 x22: ffffa368b4972240 x21: ffff8000b979bb18[67841.038147] x20: ffff00281dc1e3c0 x19: fffffffffffffffe x18: 0000000000000020[67841.045515] x17: 0000000000000000 x16: ffffa368b128a530 x15: ffffffffffffffff[67841.052888] x14: ffff8000b979bc18 x13: ffffffffffffffff x12: ffff8000b979bb18[67841.060263] x11: 0000000000000000 x10: 0000000000000000 x9 : ffffa368b1289b18[67841.067640] x8 : 0000000000000012 x7 : 0000000000000000 x6 : 00000000000003a9[67841.075014] x5 : 0000000000000000 x4 : ffff002818c5cb00 x3 : 0000000000000001[67841.082388] x2 : 0000000000000000 x1 : ffff002818c5cb00 x0 : 00000000000000a0[67841.089759] Call trace:[67841.092456]  down_write+0x30/0x98[67841.096017]  start_creating.part.0+0x60/0x198[67841.100613]  debugfs_create_dir+0x48/0x1f8[67841.104950]  debugfs_create_files_v3_hw+0x88/0x348 [hisi_sas_v3_hw][67841.111447]  debugfs_snapshot_regs_v3_hw+0x708/0x798 [hisi_sas_v3_hw][67841.118111]  debugfs_trigger_dump_v3_hw_write+0x9c/0x120 [hisi_sas_v3_hw][67841.125115]  full_proxy_write+0x68/0xc8[67841.129175]  vfs_write+0xd8/0x3f0[67841.132708]  ksys_write+0x70/0x108[67841.136317]  __arm64_sys_write+0x24/0x38[67841.140440]  invoke_syscall+0x50/0x128[67841.144385]  el0_svc_common.constprop.0+0xc8/0xf0[67841.149273]  do_el0_svc+0x24/0x38[67841.152773]  el0_svc+0x38/0xd8[67841.156009]  el0t_64_sync_handler+0xc0/0xc8[67841.160361]  el0t_64_sync+0x1a4/0x1a8[67841.164189] Code: b9000882 d2800002 d2800023 f9800011 (c85ffc05)[67841.170443] ---[ end trace 0000000000000000 ]---To fix this issue, create all directories and files during debugfsinitialization. In this way, the driver only needs to allocate memoryspace to save information each time the user triggers dumping.
 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-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS(6.6.0):受影响
5.openEuler-24.03-LTS-SP1(6.6.0):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-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
4.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
5.openEuler-22.03-LTS-SP4(5.10.0):不修复-超出修复范围
6.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1097

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