CVE-2024-50276

一、漏洞信息
 漏洞编号：[CVE-2024-50276](https://nvd.nist.gov/vuln/detail/CVE-2024-50276)
 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：7.8 High
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:net: vertexcom: mse102x: Fix possible double free of TX skbThe scope of the TX skb is wider than just mse102x_tx_frame_spi(),so in case the TX skb room needs to be expanded, we should free thethe temporary skb instead of the original skb. Otherwise the originalTX skb pointer would be freed again in mse102x_tx_work(), which leadsto crashes:  Internal error: Oops: 0000000096000004 [#2] PREEMPT SMP  CPU: 0 PID: 712 Comm: kworker/0:1 Tainted: G      D            6.6.23  Hardware name: chargebyte Charge SOM DC-ONE (DT)  Workqueue: events mse102x_tx_work [mse102x]  pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)  pc : skb_release_data+0xb8/0x1d8  lr : skb_release_data+0x1ac/0x1d8  sp : ffff8000819a3cc0  x29: ffff8000819a3cc0 x28: ffff0000046daa60 x27: ffff0000057f2dc0  x26: ffff000005386c00 x25: 0000000000000002 x24: 00000000ffffffff  x23: 0000000000000000 x22: 0000000000000001 x21: ffff0000057f2e50  x20: 0000000000000006 x19: 0000000000000000 x18: ffff00003fdacfcc  x17: e69ad452d0c49def x16: 84a005feff870102 x15: 0000000000000000  x14: 000000000000024a x13: 0000000000000002 x12: 0000000000000000  x11: 0000000000000400 x10: 0000000000000930 x9 : ffff00003fd913e8  x8 : fffffc00001bc008  x7 : 0000000000000000 x6 : 0000000000000008  x5 : ffff00003fd91340 x4 : 0000000000000000 x3 : 0000000000000009  x2 : 00000000fffffffe x1 : 0000000000000000 x0 : 0000000000000000  Call trace:   skb_release_data+0xb8/0x1d8   kfree_skb_reason+0x48/0xb0   mse102x_tx_work+0x164/0x35c [mse102x]   process_one_work+0x138/0x260   worker_thread+0x32c/0x438   kthread+0x118/0x11c   ret_from_fork+0x10/0x20  Code: aa1303e0 97fffab6 72001c1f 54000141 (f9400660)
 漏洞公开时间：2024-11-19 10:16:29
 漏洞创建时间：2024-11-19 10:35:58
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-50276
<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/1325e838089da25217f4b403318a270fcdf88f34 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/1f26339b2ed63d1e8e18a18674fb73a392f3660e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/2cf0e77f5a0aa1ff336aa71743eda55c73902187 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/91c9daa21f3ff8668f9e1d6c860024ce7ad64137 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-50276 | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-50276 | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://git.kernel.org/stable/c/1325e838089da25217f4b403318a270fcdf88f34 | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://git.kernel.org/stable/c/1f26339b2ed63d1e8e18a18674fb73a392f3660e | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://git.kernel.org/stable/c/2cf0e77f5a0aa1ff336aa71743eda55c73902187 | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://git.kernel.org/stable/c/91c9daa21f3ff8668f9e1d6c860024ce7ad64137 | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-50276.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1233465 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-50276 |

</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:net: vertexcom: mse102x: Fix possible double free of TX skbThe scope of the TX skb is wider than just mse102x_tx_frame_spi(),so in case the TX skb room needs to be expanded, we should free thethe temporary skb instead of the original skb. Otherwise the originalTX skb pointer would be freed again in mse102x_tx_work(), which leadsto crashes:  Internal error: Oops: 0000000096000004 [#2] PREEMPT SMP  CPU: 0 PID: 712 Comm: kworker/0:1 Tainted: G      D            6.6.23  Hardware name: chargebyte Charge SOM DC-ONE (DT)  Workqueue: events mse102x_tx_work [mse102x]  pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)  pc : skb_release_data+0xb8/0x1d8  lr : skb_release_data+0x1ac/0x1d8  sp : ffff8000819a3cc0  x29: ffff8000819a3cc0 x28: ffff0000046daa60 x27: ffff0000057f2dc0  x26: ffff000005386c00 x25: 0000000000000002 x24: 00000000ffffffff  x23: 0000000000000000 x22: 0000000000000001 x21: ffff0000057f2e50  x20: 0000000000000006 x19: 0000000000000000 x18: ffff00003fdacfcc  x17: e69ad452d0c49def x16: 84a005feff870102 x15: 0000000000000000  x14: 000000000000024a x13: 0000000000000002 x12: 0000000000000000  x11: 0000000000000400 x10: 0000000000000930 x9 : ffff00003fd913e8  x8 : fffffc00001bc008  x7 : 0000000000000000 x6 : 0000000000000008  x5 : ffff00003fd91340 x4 : 0000000000000000 x3 : 0000000000000009  x2 : 00000000fffffffe x1 : 0000000000000000 x0 : 0000000000000000  Call trace:   skb_release_data+0xb8/0x1d8   kfree_skb_reason+0x48/0xb0   mse102x_tx_work+0x164/0x35c [mse102x]   process_one_work+0x138/0x260   worker_thread+0x32c/0x438   kthread+0x118/0x11c   ret_from_fork+0x10/0x20  Code: aa1303e0 97fffab6 72001c1f 54000141 (f9400660)
 openEuler评分：
  7.8
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-24.03-LTS-SP1(6.6.0):受影响
3.openEuler-20.03-LTS-SP4(4.19.90):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
8.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.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
6.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
7.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在

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