一、漏洞信息
漏洞编号:CVE-2024-56788
漏洞归属组件:kernel
漏洞归属的版本:4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
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:net: ethernet: oa_tc6: fix tx skb race condition between reference pointersThere are two skb pointers to manage tx skb s enqueued from n/w stack.waiting_tx_skb pointer points to the tx skb which needs to be processedand ongoing_tx_skb pointer points to the tx skb which is being processed.SPI thread prepares the tx data chunks from the tx skb pointed by theongoing_tx_skb pointer. When the tx skb pointed by the ongoing_tx_skb isprocessed, the tx skb pointed by the waiting_tx_skb is assigned toongoing_tx_skb and the waiting_tx_skb pointer is assigned with NULL.Whenever there is a new tx skb from n/w stack, it will be assigned towaiting_tx_skb pointer if it is NULL. Enqueuing and processing of a tx skbhandled in two different threads.Consider a scenario where the SPI thread processed an ongoing_tx_skb andit moves next tx skb from waiting_tx_skb pointer to ongoing_tx_skb pointerwithout doing any NULL check. At this time, if the waiting_tx_skb pointeris NULL then ongoing_tx_skb pointer is also assigned with NULL. Afterthat, if a new tx skb is assigned to waiting_tx_skb pointer by the n/wstack and there is a chance to overwrite the tx skb pointer with NULL inthe SPI thread. Finally one of the tx skb will be left as unhandled,resulting packet missing and memory leak.- Consider the below scenario where the TXC reported from the previoustransfer is 10 and ongoing_tx_skb holds an tx ethernet frame which can betransported in 20 TXCs and waiting_tx_skb is still NULL. tx_credits = 10; /* 21 are filled in the previous transfer / ongoing_tx_skb = 20; waiting_tx_skb = NULL; / Still NULL /- So, (tc6->ongoing_tx_skb || tc6->waiting_tx_skb) becomes true.- After oa_tc6_prepare_spi_tx_buf_for_tx_skbs() ongoing_tx_skb = 10; waiting_tx_skb = NULL; / Still NULL */- Perform SPI transfer.- Process SPI rx buffer to get the TXC from footers.- Now let s assume previously filled 21 TXCs are freed so we are good totransport the next remaining 10 tx chunks from ongoing_tx_skb. tx_credits = 21; ongoing_tx_skb = 10; waiting_tx_skb = NULL;- So, (tc6->ongoing_tx_skb || tc6->waiting_tx_skb) becomes true again.- In the oa_tc6_prepare_spi_tx_buf_for_tx_skbs() ongoing_tx_skb = NULL; waiting_tx_skb = NULL;- Now the below bad case might happen,Thread1 (oa_tc6_start_xmit) Thread2 (oa_tc6_spi_thread_handler)--------------------------- ------------------------------------ if waiting_tx_skb is NULL - if ongoing_tx_skb is NULL - ongoing_tx_skb = waiting_tx_skb- waiting_tx_skb = skb - waiting_tx_skb = NULL ... - ongoing_tx_skb = NULL- if waiting_tx_skb is NULL- waiting_tx_skb = skbTo overcome the above issue, protect the moving of tx skb reference fromwaiting_tx_skb pointer to ongoing_tx_skb pointer and assigning new tx skbto waiting_tx_skb pointer, so that the other thread can t access thewaiting_tx_skb pointer until the current thread completes moving the txskb reference safely.
漏洞公开时间:2025-01-11 21:15:29
漏洞创建时间:2025-01-22 16:37:04
漏洞详情参考链接:
https://nvd.nist.gov/vuln/detail/CVE-2024-56788
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:
二、漏洞分析结构反馈
影响性分析说明:
Reserved.
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):不受影响
2.openEuler-22.03-LTS-SP3(5.10.0):不受影响
3.openEuler-22.03-LTS-SP4:不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1: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:否
5.openEuler-24.03-LTS-Next:否
6.openEuler-22.03-LTS-SP4:否
7.openEuler-24.03-LTS-SP1:否
原因说明:
1.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
2.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
3.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS:不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。
@yangyingliang ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 ,@gasonchen
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), 原因说明)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(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
修复是否涉及abi变化(是/否):
1.master(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
原因说明:
1.master(6.6.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP3(5.10.0):
4.openEuler-22.03-LTS-SP4(5.10.0):
5.openEuler-24.03-LTS(6.6.0):
6.openEuler-24.03-LTS-Next(6.6.0):
7.openEuler-24.03-LTS-SP1(6.6.0):
原因说明填写请参考下方表格(注意:版本是否受影响和版本的原因说明必须对应,例如master版本分支受影响,那原因说明只能是受影响对应的原因之一!):
分支状态 | 原因说明 |
---|---|
受影响 | 正常修复 |
受影响 | 暂不修复-漏洞仍在分析中 |
受影响 | 暂不修复-暂无解决方案或补丁 |
受影响 | 暂不修复-待升级版本修复 |
受影响 | 不修复-超出修复范围 |
受影响 | 不修复-特殊原因导致不再修复 |
不受影响 | 不受影响-组件不存在 |
不受影响 | 不受影响-已有内置的内联控制或缓解措施 |
不受影响 | 不受影响-漏洞代码不能被攻击者触发 |
不受影响 | 不受影响-漏洞代码不在执行路径 |
不受影响 | 不受影响-漏洞代码不存在 |
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
参考网址 | 关联pr | 状态 | 补丁链接 |
---|---|---|---|
https://nvd.nist.gov/vuln/detail/CVE-2024-56788 | None | None | https://git.kernel.org/stable/c/e592b5110b3e9393881b0a019d86832bbf71a47f https://git.kernel.org/stable/c/1f2eb6c32bae04b375bb7a0aedbeefb6dbbcb775 |
https://ubuntu.com/security/CVE-2024-56788 | None | None | https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 https://git.kernel.org/stable/c/e592b5110b3e9393881b0a019d86832bbf71a47f https://git.kernel.org/stable/c/1f2eb6c32bae04b375bb7a0aedbeefb6dbbcb775 https://git.kernel.org/linus/e592b5110b3e9393881b0a019d86832bbf71a47f https://discourse.ubuntu.com/c/project |
https://www.opencve.io/cve/CVE-2024-56788 | |||
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-56788 | |||
https://security-tracker.debian.org/tracker/CVE-2024-56788 | None | None | https://git.kernel.org/linus/e592b5110b3e9393881b0a019d86832bbf71a47f |
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。
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-2024-56788
影响性分析说明:
In the Linux kernel, the following vulnerability has been resolved:
net: ethernet: oa_tc6: fix tx skb race condition between reference pointers
There are two skb pointers to manage tx skb's enqueued from n/w stack.
waiting_tx_skb pointer points to the tx skb which needs to be processed
and ongoing_tx_skb pointer points to the tx skb which is being processed.
SPI thread prepares the tx data chunks from the tx skb pointed by the
ongoing_tx_skb pointer. When the tx skb pointed by the ongoing_tx_skb is
processed, the tx skb pointed by the waiting_tx_skb is assigned to
ongoing_tx_skb and the waiting_tx_skb pointer is assigned with NULL.
Whenever there is a new tx skb from n/w stack, it will be assigned to
waiting_tx_skb pointer if it is NULL. Enqueuing and processing of a tx skb
handled in two different threads.
Consider a scenario where the SPI thread processed an ongoing_tx_skb and
it moves next tx skb from waiting_tx_skb pointer to ongoing_tx_skb pointer
without doing any NULL check. At this time, if the waiting_tx_skb pointer
is NULL then ongoing_tx_skb pointer is also assigned with NULL. After
that, if a new tx skb is assigned to waiting_tx_skb pointer by the n/w
stack and there is a chance to overwrite the tx skb pointer with NULL in
the SPI thread. Finally one of the tx skb will be left as unhandled,
resulting packet missing and memory leak.
Consider the below scenario where the TXC reported from the previous
transfer is 10 and ongoing_tx_skb holds an tx ethernet frame which can be
transported in 20 TXCs and waiting_tx_skb is still NULL.
tx_credits = 10; /* 21 are filled in the previous transfer /
ongoing_tx_skb = 20;
waiting_tx_skb = NULL; / Still NULL */
So, (tc6->ongoing_tx_skb || tc6->waiting_tx_skb) becomes true.
After oa_tc6_prepare_spi_tx_buf_for_tx_skbs()
ongoing_tx_skb = 10;
waiting_tx_skb = NULL; /* Still NULL */
Perform SPI transfer.
Process SPI rx buffer to get the TXC from footers.
Now let's assume previously filled 21 TXCs are freed so we are good to
transport the next remaining 10 tx chunks from ongoing_tx_skb.
tx_credits = 21;
ongoing_tx_skb = 10;
waiting_tx_skb = NULL;
So, (tc6->ongoing_tx_skb || tc6->waiting_tx_skb) becomes true again.
In the oa_tc6_prepare_spi_tx_buf_for_tx_skbs()
ongoing_tx_skb = NULL;
waiting_tx_skb = NULL;
Now the below bad case might happen,
Thread1 (oa_tc6_start_xmit) Thread2 (oa_tc6_spi_thread_handler)
To overcome the above issue, protect the moving of tx skb reference from
waiting_tx_skb pointer to ongoing_tx_skb pointer and assigning new tx skb
to waiting_tx_skb pointer, so that the other thread can't access the
waiting_tx_skb pointer until the current thread completes moving the tx
skb reference safely.
openEuler评分:(评分和向量)
3.9
AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
受影响版本排查(受影响/不受影响):
1.master(6.1.0):不受影响
2.openEuler-20.03-LTS-SP4:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
修复是否涉及abi变化(是/否):
1.master(6.1.0):否
2.openEuler-20.03-LTS-SP4:否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
原因说明:
1.master(23.08.5):不受影响-漏洞代码不能被攻击者触发
2.openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在
4.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS:不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
8.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在
@gitee-cmd ,@gwei3 ,@zhujianwei001 ,@yanxiaobing2020 ,@liujingang09 ,@luoyukai The CVE score needs to be reviewed (the review instruction /approve or /reject means agreement and rejection).
@zhixiuzhou ,请给出NVD评分和openEuler评分不一致的理由
CVE-2024-56788
影响性分析说明:
Reserved.
openEuler评分:(评分和向量)
5.5
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:不受影响
2.openEuler-22.03-LTS-SP3:不受影响
3.openEuler-22.03-LTS-SP4:不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
原因说明:
1.openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在
2.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
4.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在
修复是否涉及abi变化(是/否):
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP3:否
3.master(23.08.5):否
4.openEuler-24.03-LTS:否
5.openEuler-24.03-LTS-Next:否
6.openEuler-22.03-LTS-SP4:否
7.openEuler-24.03-LTS-SP1:否
===========================================================
@sanglipeng 经过 cve-manager 解析, 已分析的内容如下表所示:
状态 | 分析项目 | 内容 |
---|---|---|
已分析 | 1.影响性分析说明 | Reserved. |
已分析 | 2.openEulerScore | 5.5 |
已分析 | 3.openEulerVector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
已分析 | 4.受影响版本排查 | openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响,openEuler-24.03-LTS-SP1:不受影响 |
已分析 | 5.是否涉及abi变化 | openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否,openEuler-24.03-LTS-SP1:否 |
已分析 | 6.原因说明 | master:不受影响-漏洞代码不能被攻击者触发,openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发,openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在,openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在,openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在,openEuler-24.03-LTS:不受影响-漏洞代码不存在,openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在 |
请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.
CVE-2024-56788
影响性分析说明:
Reserved.
openEuler评分:(评分和向量)
5.5
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:不受影响
2.openEuler-22.03-LTS-SP3:不受影响
3.openEuler-22.03-LTS-SP4:不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
原因说明:
1.openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在
2.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
4.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在
修复是否涉及abi变化(是/否):
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP3:否
3.master(23.08.5):否
4.openEuler-24.03-LTS:否
5.openEuler-24.03-LTS-Next:否
6.openEuler-22.03-LTS-SP4:否
7.openEuler-24.03-LTS-SP1:否
===========================================================
CVE-2024-56788
影响性分析说明:
Reserved.
openEuler评分:(评分和向量)
5.5
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:不受影响
2.openEuler-22.03-LTS-SP3:不受影响
3.openEuler-22.03-LTS-SP4:不受影响
4.master(6.6.0):不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
原因说明:
1.openEuler-20.03-LTS-SP4:不受影响-漏洞代码不存在
2.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
3.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
4.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS:不受影响-漏洞代码不存在
6.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在
修复是否涉及abi变化(是/否):
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP3:否
3.master(23.08.5):否
4.openEuler-24.03-LTS:否
5.openEuler-24.03-LTS-Next:否
6.openEuler-22.03-LTS-SP4:否
7.openEuler-24.03-LTS-SP1:否
===========================================================
登录 后才可以发表评论