CVE-2024-26957

一、漏洞信息
 漏洞编号：[CVE-2024-26957](https://nvd.nist.gov/vuln/detail/CVE-2024-26957)
 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：0.0 None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:s390/zcrypt: fix reference counting on zcrypt card objectsTests with hot-plugging crytpo cards on KVM guests with debugkernel build revealed an use after free for the load field ofthe struct zcrypt_card. The reason was an incorrect referencehandling of the zcrypt card object which could lead to a freeof the zcrypt card object while it was still in use.This is an example of the slab message:    kernel: 0x00000000885a7512-0x00000000885a7513 @offset=1298. First byte 0x68 instead of 0x6b    kernel: Allocated in zcrypt_card_alloc+0x36/0x70 [zcrypt] age=18046 cpu=3 pid=43    kernel:  kmalloc_trace+0x3f2/0x470    kernel:  zcrypt_card_alloc+0x36/0x70 [zcrypt]    kernel:  zcrypt_cex4_card_probe+0x26/0x380 [zcrypt_cex4]    kernel:  ap_device_probe+0x15c/0x290    kernel:  really_probe+0xd2/0x468    kernel:  driver_probe_device+0x40/0xf0    kernel:  __device_attach_driver+0xc0/0x140    kernel:  bus_for_each_drv+0x8c/0xd0    kernel:  __device_attach+0x114/0x198    kernel:  bus_probe_device+0xb4/0xc8    kernel:  device_add+0x4d2/0x6e0    kernel:  ap_scan_adapter+0x3d0/0x7c0    kernel:  ap_scan_bus+0x5a/0x3b0    kernel:  ap_scan_bus_wq_callback+0x40/0x60    kernel:  process_one_work+0x26e/0x620    kernel:  worker_thread+0x21c/0x440    kernel: Freed in zcrypt_card_put+0x54/0x80 [zcrypt] age=9024 cpu=3 pid=43    kernel:  kfree+0x37e/0x418    kernel:  zcrypt_card_put+0x54/0x80 [zcrypt]    kernel:  ap_device_remove+0x4c/0xe0    kernel:  device_release_driver_internal+0x1c4/0x270    kernel:  bus_remove_device+0x100/0x188    kernel:  device_del+0x164/0x3c0    kernel:  device_unregister+0x30/0x90    kernel:  ap_scan_adapter+0xc8/0x7c0    kernel:  ap_scan_bus+0x5a/0x3b0    kernel:  ap_scan_bus_wq_callback+0x40/0x60    kernel:  process_one_work+0x26e/0x620    kernel:  worker_thread+0x21c/0x440    kernel:  kthread+0x150/0x168    kernel:  __ret_from_fork+0x3c/0x58    kernel:  ret_from_fork+0xa/0x30    kernel: Slab 0x00000372022169c0 objects=20 used=18 fp=0x00000000885a7c88 flags=0x3ffff00000000a00(workingset|slab|node=0|zone=1|lastcpupid=0x1ffff)    kernel: Object 0x00000000885a74b8 @offset=1208 fp=0x00000000885a7c88    kernel: Redzone  00000000885a74b0: bb bb bb bb bb bb bb bb                          ........    kernel: Object   00000000885a74b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a7508: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 68 4b 6b 6b 6b a5  kkkkkkkkkkhKkkk.    kernel: Redzone  00000000885a7518: bb bb bb bb bb bb bb bb                          ........    kernel: Padding  00000000885a756c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ    kernel: CPU: 0 PID: 387 Comm: systemd-udevd Not tainted 6.8.0-HF #2    kernel: Hardware name: IBM 3931 A01 704 (KVM/Linux)    kernel: Call Trace:    kernel:  [<00000000ca5ab5b8>] dump_stack_lvl+0x90/0x120    kernel:  [<00000000c99d78bc>] check_bytes_and_report+0x114/0x140    kernel:  [<00000000c99d53cc>] check_object+0x334/0x3f8    kernel:  [<00000000c99d820c>] alloc_debug_processing+0xc4/0x1f8    kernel:  [<00000000c99d852e>] get_partial_node.part.0+0x1ee/0x3e0    kernel:  [<00000000c99d94ec>] ___slab_alloc+0xaf4/0x13c8    kernel:  [<00000000c99d9e38>] __slab_alloc.constprop.0+0x78/0xb8    kernel:  [<00000000c99dc8dc>] __kmalloc+0x434/0x590    kernel:  [<00000000c9b4c0ce>] ext4_htree_store_dirent+0x4e/0x1c0    kernel:  [<00000000c9b908a2>] htree_dirblock_to_tree+0x17a/0x3f0    kernel: ---truncated---
 漏洞公开时间：2024-05-01 14:15:11
 漏洞创建时间：2024-05-01 06:32:50
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-26957
<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/394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/50ed48c80fecbe17218afed4f8bed005c802976c |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/6470078ab3d8f222115e11c4ec67351f3031b3dd |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/7e500849fa558879a1cde43f80c7c048c2437058 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/9daddee03de3f231012014dab8ab2b277a116a55 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/a55677878b93e9ebc31f66d0e2fb93be5e7836a6 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/a64ab862e84e3e698cd351a87cdb504c7fc575ca |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/b7f6c3630eb3f103115ab0d7613588064f665d0d |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/befb7f889594d23e1b475720cf93efd2f77df000 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26957 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-26957 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/394b6d8bbdf9ddee6d5bcf3e1f3e9f23eecd6484 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/50ed48c80fecbe17218afed4f8bed005c802976c | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/6470078ab3d8f222115e11c4ec67351f3031b3dd | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/7e500849fa558879a1cde43f80c7c048c2437058 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/9daddee03de3f231012014dab8ab2b277a116a55 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/a55677878b93e9ebc31f66d0e2fb93be5e7836a6 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/a64ab862e84e3e698cd351a87cdb504c7fc575ca | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/b7f6c3630eb3f103115ab0d7613588064f665d0d | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/stable/c/befb7f889594d23e1b475720cf93efd2f77df000 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26957.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2278185 | https://bugzilla.suse.com/show_bug.cgi?id=1223666 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024050129-CVE-2024-26957-9e6b@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2278185 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-26957 |

</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:s390/zcrypt: fix reference counting on zcrypt card objectsTests with hot-plugging crytpo cards on KVM guests with debugkernel build revealed an use after free for the load field ofthe struct zcrypt_card. The reason was an incorrect referencehandling of the zcrypt card object which could lead to a freeof the zcrypt card object while it was still in use.This is an example of the slab message:    kernel: 0x00000000885a7512-0x00000000885a7513 @offset=1298. First byte 0x68 instead of 0x6b    kernel: Allocated in zcrypt_card_alloc+0x36/0x70 [zcrypt] age=18046 cpu=3 pid=43    kernel:  kmalloc_trace+0x3f2/0x470    kernel:  zcrypt_card_alloc+0x36/0x70 [zcrypt]    kernel:  zcrypt_cex4_card_probe+0x26/0x380 [zcrypt_cex4]    kernel:  ap_device_probe+0x15c/0x290    kernel:  really_probe+0xd2/0x468    kernel:  driver_probe_device+0x40/0xf0    kernel:  __device_attach_driver+0xc0/0x140    kernel:  bus_for_each_drv+0x8c/0xd0    kernel:  __device_attach+0x114/0x198    kernel:  bus_probe_device+0xb4/0xc8    kernel:  device_add+0x4d2/0x6e0    kernel:  ap_scan_adapter+0x3d0/0x7c0    kernel:  ap_scan_bus+0x5a/0x3b0    kernel:  ap_scan_bus_wq_callback+0x40/0x60    kernel:  process_one_work+0x26e/0x620    kernel:  worker_thread+0x21c/0x440    kernel: Freed in zcrypt_card_put+0x54/0x80 [zcrypt] age=9024 cpu=3 pid=43    kernel:  kfree+0x37e/0x418    kernel:  zcrypt_card_put+0x54/0x80 [zcrypt]    kernel:  ap_device_remove+0x4c/0xe0    kernel:  device_release_driver_internal+0x1c4/0x270    kernel:  bus_remove_device+0x100/0x188    kernel:  device_del+0x164/0x3c0    kernel:  device_unregister+0x30/0x90    kernel:  ap_scan_adapter+0xc8/0x7c0    kernel:  ap_scan_bus+0x5a/0x3b0    kernel:  ap_scan_bus_wq_callback+0x40/0x60    kernel:  process_one_work+0x26e/0x620    kernel:  worker_thread+0x21c/0x440    kernel:  kthread+0x150/0x168    kernel:  __ret_from_fork+0x3c/0x58    kernel:  ret_from_fork+0xa/0x30    kernel: Slab 0x00000372022169c0 objects=20 used=18 fp=0x00000000885a7c88 flags=0x3ffff00000000a00(workingset|slab|node=0|zone=1|lastcpupid=0x1ffff)    kernel: Object 0x00000000885a74b8 @offset=1208 fp=0x00000000885a7c88    kernel: Redzone  00000000885a74b0: bb bb bb bb bb bb bb bb                          ........    kernel: Object   00000000885a74b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a74f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk    kernel: Object   00000000885a7508: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 68 4b 6b 6b 6b a5  kkkkkkkkkkhKkkk.    kernel: Redzone  00000000885a7518: bb bb bb bb bb bb bb bb                          ........    kernel: Padding  00000000885a756c: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a              ZZZZZZZZZZZZ    kernel: CPU: 0 PID: 387 Comm: systemd-udevd Not tainted 6.8.0-HF #2    kernel: Hardware name: IBM 3931 A01 704 (KVM/Linux)    kernel: Call Trace:    kernel:  [<00000000ca5ab5b8>] dump_stack_lvl+0x90/0x120    kernel:  [<00000000c99d78bc>] check_bytes_and_report+0x114/0x140    kernel:  [<00000000c99d53cc>] check_object+0x334/0x3f8    kernel:  [<00000000c99d820c>] alloc_debug_processing+0xc4/0x1f8    kernel:  [<00000000c99d852e>] get_partial_node.part.0+0x1ee/0x3e0    kernel:  [<00000000c99d94ec>] ___slab_alloc+0xaf4/0x13c8    kernel:  [<00000000c99d9e38>] __slab_alloc.constprop.0+0x78/0xb8    kernel:  [<00000000c99dc8dc>] __kmalloc+0x434/0x590    kernel:  [<00000000c9b4c0ce>] ext4_htree_store_dirent+0x4e/0x1c0    kernel:  [<00000000c9b908a2>] htree_dirblock_to_tree+0x17a/0x3f0    kernel: ---truncated---
 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-SP1(5.10.0):受影响
3.openEuler-22.03-LTS-SP3(5.10.0):受影响
4.openEuler-22.03-LTS-SP4(5.10.0):受影响
5.master(6.6.0):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(6.6.0):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):

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