CVE-2024-26882

一、漏洞信息
 漏洞编号：[CVE-2024-26882](https://nvd.nist.gov/vuln/detail/CVE-2024-26882)
 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
 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：
 A vulnerability was found in Linux Kernel up to 6.8.1 (Operating System). It has been classified as critical.CWE is classifying the issue as CWE-457. The code uses a variable that has not been initialized, leading to unpredictable or unintended results.This is going to have an impact on confidentiality, integrity, and availability.Upgrading to version 5.4.273, 5.10.214, 5.15.153, 6.1.83, 6.6.23, 6.7.11, 6.8.2 or 6.9-rc1 eliminates this vulnerability. Applying the patch ec6bb01e02cb/77fd5294ea09/5c03387021cf/60044ab84836/c4c857723b37/f6723d8dbfdc/ca914f1cdee8/b0ec2abf9826 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.
 漏洞公开时间：2024-04-17 00:00:00
 漏洞创建时间：2024-05-08 06:55:54
 漏洞详情参考链接：
 https://nvd.nist.gov/vuln/detail/CVE-2024-26882
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://git.kernel.org/stable/c/5c03387021cfa3336b97e0dcba38029917a8af2a |  |
|  | https://git.kernel.org/stable/c/60044ab84836359534bd7153b92e9c1584140e4a |  |
|  | https://git.kernel.org/stable/c/77fd5294ea09b21f6772ac954a121b87323cec80 |  |
|  | https://git.kernel.org/stable/c/b0ec2abf98267f14d032102551581c833b0659d3 |  |
|  | https://git.kernel.org/stable/c/c4c857723b37c20651300b3de4ff25059848b4b0 |  |
|  | https://git.kernel.org/stable/c/ca914f1cdee8a85799942c9b0ce5015bbd6844e1 |  |
|  | https://git.kernel.org/stable/c/ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b |  |
|  | https://git.kernel.org/stable/c/f6723d8dbfdc10c784a56748f86a9a3cd410dbd5 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2024-26882 |  |
|  | https://git.kernel.org/linus/b0ec2abf98267f14d032102551581c833b0659d3 |  |
|  | https://ubuntu.com/security/notices/USN-6816-1 |  |
|  | https://ubuntu.com/security/notices/USN-6817-1 |  |
|  | https://ubuntu.com/security/notices/USN-6820-1 |  |
|  | https://ubuntu.com/security/notices/USN-6821-1 |  |
|  | https://ubuntu.com/security/notices/USN-6821-2 |  |
|  | https://ubuntu.com/security/notices/USN-6817-2 |  |
|  | https://ubuntu.com/security/notices/USN-6828-1 |  |
|  | https://ubuntu.com/security/notices/USN-6820-2 |  |
|  | https://ubuntu.com/security/notices/USN-6821-3 |  |
|  | https://ubuntu.com/security/notices/USN-6817-3 |  |
|  | https://ubuntu.com/security/notices/USN-6821-4 |  |
|  | https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html |  |
|  | https://ubuntu.com/security/notices/USN-6871-1 |  |
|  | https://ubuntu.com/security/notices/USN-6878-1 |  |
|  | https://ubuntu.com/security/notices/USN-6892-1 |  |
|  | https://ubuntu.com/security/notices/USN-6896-1 |  |
|  | https://ubuntu.com/security/notices/USN-6896-2 |  |
|  | https://ubuntu.com/security/notices/USN-6896-3 |  |
|  | https://ubuntu.com/security/notices/USN-6896-4 |  |
|  | https://ubuntu.com/security/notices/USN-6896-5 |  |
|  | https://ubuntu.com/security/notices/USN-6919-1 |  |
|  | https://ubuntu.com/security/notices/USN-6925-1 |  |
|  | https://ubuntu.com/security/notices/USN-6926-1 |  |
|  | https://ubuntu.com/security/notices/USN-6938-1 |  |
|  | https://ubuntu.com/security/notices/USN-6926-2 |  |
|  | https://ubuntu.com/security/notices/USN-6926-3 |  |
|  | https://security.netapp.com/advisory/ntap-20241220-0002/ |  |

</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://github.com/torvalds/linux/commit/bc03c02cc1991a066b23e69 | https://github.com/torvalds/linux/commit/bc03c02cc1991a066b23e69bbcc0f66e8f1f7453.patch |  | ljqc |

</details>

二、漏洞分析结构反馈
 影响性分析说明：
     
 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.master:
2.openEuler-20.03-LTS-SP4:
3.openEuler-22.03-LTS-SP1:
4.openEuler-22.03-LTS-SP3:
5.openEuler-22.03-LTS-SP4:
6.openEuler-24.03-LTS:
7.openEuler-24.03-LTS-Next:
8.openEuler-24.03-LTS-SP1:

修复是否涉及abi变化(是/否)：
  1.master:
2.openEuler-20.03-LTS-SP4:
3.openEuler-22.03-LTS-SP1:
4.openEuler-22.03-LTS-SP3:
5.openEuler-22.03-LTS-SP4:
6.openEuler-24.03-LTS:
7.openEuler-24.03-LTS-Next:
8.openEuler-24.03-LTS-SP1:

原因说明：
  1.master:
2.openEuler-20.03-LTS-SP4:
3.openEuler-22.03-LTS-SP1:
4.openEuler-22.03-LTS-SP3:
5.openEuler-22.03-LTS-SP4:
6.openEuler-24.03-LTS:
7.openEuler-24.03-LTS-Next:
8.openEuler-24.03-LTS-SP1:

@yangyingliang ,@gatieme ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 
**issue处理注意事项:** 
**1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;**
**2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;**
**3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.**
************************************************************************
影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响): 
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP1(4.19.90):
3.openEuler-20.03-LTS-SP4(4.19.90):
4.openEuler-22.03-LTS(5.10.0):
5.openEuler-22.03-LTS-Next(5.10.0):
6.openEuler-22.03-LTS-SP1(5.10.0):
7.openEuler-22.03-LTS-SP2(5.10.0):
8.openEuler-22.03-LTS-SP3(5.10.0):
9.openEuler-24.03-LTS:
10.openEuler-24.03-LTS-Next:

-----------------------------------------------------------------------
issue处理具体操作请参考: 
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

<table><tr><th white-space: nowrap;>参考网址</th> <th white-space: nowrap;>关联pr</th> <th white-space: nowrap;>状态</th> <th white-space: nowrap;>补丁链接</th></tr><tr><td rowspan="1">https://nvd.nist.gov/vuln/detail/CVE-2024-26882</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/77fd5294ea09b21f6772ac954a121b87323cec80>https://git.kernel.org/stable/c/77fd5294ea09b21f6772ac954a121b87323cec80</a> <a href=https://git.kernel.org/stable/c/5c03387021cfa3336b97e0dcba38029917a8af2a>https://git.kernel.org/stable/c/5c03387021cfa3336b97e0dcba38029917a8af2a</a> <a href=https://git.kernel.org/stable/c/b0ec2abf98267f14d032102551581c833b0659d3>https://git.kernel.org/stable/c/b0ec2abf98267f14d032102551581c833b0659d3</a> <a href=https://git.kernel.org/stable/c/c4c857723b37c20651300b3de4ff25059848b4b0>https://git.kernel.org/stable/c/c4c857723b37c20651300b3de4ff25059848b4b0</a> <a href=https://git.kernel.org/stable/c/f6723d8dbfdc10c784a56748f86a9a3cd410dbd5>https://git.kernel.org/stable/c/f6723d8dbfdc10c784a56748f86a9a3cd410dbd5</a> <a href=https://git.kernel.org/stable/c/ca914f1cdee8a85799942c9b0ce5015bbd6844e1>https://git.kernel.org/stable/c/ca914f1cdee8a85799942c9b0ce5015bbd6844e1</a> <a href=https://git.kernel.org/stable/c/ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b>https://git.kernel.org/stable/c/ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b</a> <a href=https://git.kernel.org/stable/c/60044ab84836359534bd7153b92e9c1584140e4a>https://git.kernel.org/stable/c/60044ab84836359534bd7153b92e9c1584140e4a</a></td></tr><tr><td rowspan="1">https://ubuntu.com/security/CVE-2024-26882</td><td>None</td><td>None</td><td><a href=https://discourse.ubuntu.com/c/ubuntu-pro>https://discourse.ubuntu.com/c/ubuntu-pro</a></td></tr><tr><td rowspan="1">https://www.opencve.io/cve/CVE-2024-26882</td><td>None</td><td>None</td><td><a href=https://git.kernel.org/stable/c/77fd5294ea09b21f6772ac954a121b87323cec80>https://git.kernel.org/stable/c/77fd5294ea09b21f6772ac954a121b87323cec80</a> <a href=https://git.kernel.org/stable/c/5c03387021cfa3336b97e0dcba38029917a8af2a>https://git.kernel.org/stable/c/5c03387021cfa3336b97e0dcba38029917a8af2a</a> <a href=https://git.kernel.org/stable/c/b0ec2abf98267f14d032102551581c833b0659d3>https://git.kernel.org/stable/c/b0ec2abf98267f14d032102551581c833b0659d3</a> <a href=https://git.kernel.org/stable/c/c4c857723b37c20651300b3de4ff25059848b4b0>https://git.kernel.org/stable/c/c4c857723b37c20651300b3de4ff25059848b4b0</a> <a href=https://git.kernel.org/stable/c/f6723d8dbfdc10c784a56748f86a9a3cd410dbd5>https://git.kernel.org/stable/c/f6723d8dbfdc10c784a56748f86a9a3cd410dbd5</a> <a href=https://git.kernel.org/stable/c/ca914f1cdee8a85799942c9b0ce5015bbd6844e1>https://git.kernel.org/stable/c/ca914f1cdee8a85799942c9b0ce5015bbd6844e1</a> <a href=https://git.kernel.org/stable/c/ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b>https://git.kernel.org/stable/c/ec6bb01e02cbd47781dd90775b631a1dc4bd9d2b</a> <a href=https://git.kernel.org/stable/c/60044ab84836359534bd7153b92e9c1584140e4a>https://git.kernel.org/stable/c/60044ab84836359534bd7153b92e9c1584140e4a</a></td></tr><tr><td>https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26882</td><td></td><td></td><td></td></tr><tr><td>https://security-tracker.debian.org/tracker/CVE-2024-26882</td><td></td><td></td><td></td></tr></table>

> 说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用[CVE补丁工具](https://gitee.com/openeuler/cve-manager/blob/master/cve-agency-manager/cve_tracking/README.md)。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址 补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

CVE-2024-26882

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

net: ip_tunnel: make sure to pull inner header in ip_tunnel_rcv()

Apply the same fix than ones found in :

8d975c15c0cd ("ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()")
1ca1ba465e55 ("geneve: make sure to pull inner header in geneve_rx()")

We have to save skb->network_header in a temporary variable
in order to be able to recompute the network_header pointer
after a pskb_inet_may_pull() call.

pskb_inet_may_pull() makes sure the needed headers are in skb->head.

syzbot reported:
BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
 BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
 BUG: KMSAN: uninit-value in IP_ECN_decapsulate include/net/inet_ecn.h:302 [inline]
 BUG: KMSAN: uninit-value in ip_tunnel_rcv+0xed9/0x2ed0 net/ipv4/ip_tunnel.c:409
  __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline]
  INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline]
  IP_ECN_decapsulate include/net/inet_ecn.h:302 [inline]
  ip_tunnel_rcv+0xed9/0x2ed0 net/ipv4/ip_tunnel.c:409
  __ipgre_rcv+0x9bc/0xbc0 net/ipv4/ip_gre.c:389
  ipgre_rcv net/ipv4/ip_gre.c:411 [inline]
  gre_rcv+0x423/0x19f0 net/ipv4/ip_gre.c:447
  gre_rcv+0x2a4/0x390 net/ipv4/gre_demux.c:163
  ip_protocol_deliver_rcu+0x264/0x1300 net/ipv4/ip_input.c:205
  ip_local_deliver_finish+0x2b8/0x440 net/ipv4/ip_input.c:233
  NF_HOOK include/linux/netfilter.h:314 [inline]
  ip_local_deliver+0x21f/0x490 net/ipv4/ip_input.c:254
  dst_input include/net/dst.h:461 [inline]
  ip_rcv_finish net/ipv4/ip_input.c:449 [inline]
  NF_HOOK include/linux/netfilter.h:314 [inline]
  ip_rcv+0x46f/0x760 net/ipv4/ip_input.c:569
  __netif_receive_skb_one_core net/core/dev.c:5534 [inline]
  __netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5648
  netif_receive_skb_internal net/core/dev.c:5734 [inline]
  netif_receive_skb+0x58/0x660 net/core/dev.c:5793
  tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1556
  tun_get_user+0x53b9/0x66e0 drivers/net/tun.c:2009
  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2055
  call_write_iter include/linux/fs.h:2087 [inline]
  new_sync_write fs/read_write.c:497 [inline]
  vfs_write+0xb6b/0x1520 fs/read_write.c:590
  ksys_write+0x20f/0x4c0 fs/read_write.c:643
  __do_sys_write fs/read_write.c:655 [inline]
  __se_sys_write fs/read_write.c:652 [inline]
  __x64_sys_write+0x93/0xd0 fs/read_write.c:652
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

Uninit was created at:
  __alloc_pages+0x9a6/0xe00 mm/page_alloc.c:4590
  alloc_pages_mpol+0x62b/0x9d0 mm/mempolicy.c:2133
  alloc_pages+0x1be/0x1e0 mm/mempolicy.c:2204
  skb_page_frag_refill+0x2bf/0x7c0 net/core/sock.c:2909
  tun_build_skb drivers/net/tun.c:1686 [inline]
  tun_get_user+0xe0a/0x66e0 drivers/net/tun.c:1826
  tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2055
  call_write_iter include/linux/fs.h:2087 [inline]
  new_sync_write fs/read_write.c:497 [inline]
  vfs_write+0xb6b/0x1520 fs/read_write.c:590
  ksys_write+0x20f/0x4c0 fs/read_write.c:643
  __do_sys_write fs/read_write.c:655 [inline]
  __se_sys_write fs/read_write.c:652 [inline]
  __x64_sys_write+0x93/0xd0 fs/read_write.c:652
  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
  do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

openEuler评分:(评分和向量)
7.8
CVSS:3.1/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-20.03-LTS-SP1:受影响
2.openEuler-20.03-LTS-SP4:受影响
3.openEuler-22.03-LTS:受影响
4.openEuler-22.03-LTS-SP1:受影响
5.openEuler-22.03-LTS-SP2:受影响
6.openEuler-22.03-LTS-SP3:受影响
7.master(6.1.0):不受影响
8.openEuler-22.03-LTS-Next:不受影响
9.openEuler-24.03-LTS:不受影响
10.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP1(4.19.90):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS:否
4.openEuler-22.03-LTS-SP1:否
5.openEuler-22.03-LTS-SP2:否
6.openEuler-22.03-LTS-SP3:否
7.master(6.1.0):否
8.openEuler-22.03-LTS-Next:否
9.openEuler-24.03-LTS:否
10.openEuler-24.03-LTS-Next:否

===========================================================

src-openEuler/kernel

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内容风险标识

CVE-2024-26882

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