CVE-2024-26813

一、漏洞信息
漏洞编号：CVE-2024-26813
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V3.0分值：
BaseScore：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:vfio/platform: Create persistent IRQ handlersThe vfio-platform SET_IRQS ioctl currently allows loopback triggering ofan interrupt before a signaling eventfd has been configured by the user,which thereby allows a NULL pointer dereference.Rather than register the IRQ relative to a valid trigger, register allIRQs in a disabled state in the device open path. This allows maskoperations on the IRQ to nest within the overall enable state governedby a valid eventfd signal. This decouples @masked, protected by the@locked spinlock from @trigger, protected via the @igate mutex.In doing so, it s guaranteed that changes to @trigger cannot race theIRQ handlers because the IRQ handler is synchronously disabled beforemodifying the trigger, and loopback triggering of the IRQ via ioctl issafe due to serialization with trigger changes via igate.For compatibility, request_irq() failures are maintained to be local tothe SET_IRQS ioctl rather than a fatal error in the open device path.This allows, for example, a userspace driver with polling mode supportto continue to work regardless of moving the request_irq() call site.This necessarily blocks all SET_IRQS access to the failed index.
漏洞公开时间：2024-04-05 17:15:09
漏洞创建时间：2024-04-24 04:13:50
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-26813

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26813	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-26813	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://bugzilla.redhat.com/show_bug.cgi?id=2273648	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26813.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e	https://bugzilla.suse.com/show_bug.cgi?id=1222809
suse_bugzilla	https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5	https://bugzilla.suse.com/show_bug.cgi?id=1222809
redhat_bugzilla	https://lore.kernel.org/linux-cve-announce/2024040551-CVE-2024-26813-b9e8@gregkh/T	https://bugzilla.redhat.com/show_bug.cgi?id=2273648
ubuntu	https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://www.cve.org/CVERecord?id=CVE-2024-26813	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2024-26813	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://launchpad.net/bugs/cve/CVE-2024-26813	https://ubuntu.com/security/CVE-2024-26813
ubuntu	https://security-tracker.debian.org/tracker/CVE-2024-26813	https://ubuntu.com/security/CVE-2024-26813
debian		https://security-tracker.debian.org/tracker/CVE-2024-26813
anolis		https://anas.openanolis.cn/cves/detail/CVE-2024-26813

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：

详情(点击展开)

影响的包	修复补丁	问题引入补丁	来源
	https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e		nvd
	https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5		nvd
	https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29		nvd
	https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086		nvd
	https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375		nvd
	https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362		nvd
	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a		nvd
	https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f		nvd
	https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html		nvd
linux	https://git.kernel.org/linus/675daf435e9f8e5a5eab140a9864dfad6668b375	https://git.kernel.org/linus/57f972e2b341dd6a73533f9293ec55d584a5d833	ubuntu

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:vfio/platform: Create persistent IRQ handlersThe vfio-platform SET_IRQS ioctl currently allows loopback triggering ofan interrupt before a signaling eventfd has been configured by the user,which thereby allows a NULL pointer dereference.Rather than register the IRQ relative to a valid trigger, register allIRQs in a disabled state in the device open path. This allows maskoperations on the IRQ to nest within the overall enable state governedby a valid eventfd signal. This decouples @masked, protected by the@locked spinlock from @trigger, protected via the @igate mutex.In doing so, it s guaranteed that changes to @trigger cannot race theIRQ handlers because the IRQ handler is synchronously disabled beforemodifying the trigger, and loopback triggering of the IRQ via ioctl issafe due to serialization with trigger changes via igate.For compatibility, request_irq() failures are maintained to be local tothe SET_IRQS ioctl rather than a fatal error in the open device path.This allows, for example, a userspace driver with polling mode supportto continue to work regardless of moving the request_irq() call site.This necessarily blocks all SET_IRQS access to the failed index.
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):不受影响
4.master:不受影响
5.openEuler-24.03-LTS(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(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: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-20.03-LTS-SP4(4.19.90):正常修复
2.openEuler-22.03-LTS-SP3(5.10.0):不修复-超出修复范围
3.master: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-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
6.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1080

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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

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-26813	None	None	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086
https://www.opencve.io/cve/CVE-2024-26813	None	None	https://git.kernel.org/stable/c/cc5838f19d39a5fef04c468199699d2a4578be3a https://git.kernel.org/stable/c/675daf435e9f8e5a5eab140a9864dfad6668b375 https://git.kernel.org/stable/c/0f8d8f9c2173a541812dd750529f4a415117eb29 https://git.kernel.org/stable/c/07afdfd8a68f9eea8db0ddc4626c874f29d2ac5e https://git.kernel.org/stable/c/09452c8fcbd7817c06e8e3212d99b45917e603a5 https://git.kernel.org/stable/c/d6bedd6acc0bcb1e7e010bc046032e47f08d379f https://git.kernel.org/stable/c/7932db06c82c5b2f42a4d1a849d97dba9ce4a362 https://git.kernel.org/stable/c/62d4e43a569b67929eb3319780be5359694c8086
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-26813
https://security-tracker.debian.org/tracker/CVE-2024-26813	None	None	https://git.kernel.org/linus/675daf435e9f8e5a5eab140a9864dfad6668b375

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

@zhang-changzhong 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

@chenyi211 请确认分支: master,openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP4,openEuler-22.03-LTS,openEuler-22.03-LTS-Next,openEuler-22.03-LTS-SP1,openEuler-22.03-LTS-SP2,openEuler-22.03-LTS-SP3,openEuler-24.03-LTS,openEuler-24.03-LTS-Next 受影响/不受影响.
请确认分支信息是否填写完整,否则将无法关闭当前issue.

CVE-2024-26813

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

vfio/platform: Create persistent IRQ handlers

The vfio-platform SET_IRQS ioctl currently allows loopback triggering of
an interrupt before a signaling eventfd has been configured by the user,
which thereby allows a NULL pointer dereference.

Rather than register the IRQ relative to a valid trigger, register all
IRQs in a disabled state in the device open path. This allows mask
operations on the IRQ to nest within the overall enable state governed
by a valid eventfd signal. This decouples @masked, protected by the
@locked spinlock from @trigger, protected via the @igate mutex.

In doing so, it_x27;s guaranteed that changes to @trigger cannot race the
IRQ handlers because the IRQ handler is synchronously disabled before
modifying the trigger, and loopback triggering of the IRQ via ioctl is
safe due to serialization with trigger changes via igate.

For compatibility, request_irq() failures are maintained to be local to
the SET_IRQS ioctl rather than a fatal error in the open device path.
This allows, for example, a userspace driver with polling mode support
to continue to work regardless of moving the request_irq() call site.
This necessarily blocks all SET_IRQS access to the failed index.

openEuler评分:(评分和向量)
4.4
CVSS:3.1/AV:L/AC:L/PR:H/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-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

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

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:vfio/platform: Create persistent IRQ handlersThe vfio-platform SET_IRQS ioctl currently allows loopback triggering ofan interrupt before a signaling eventfd has been configured by the user,which thereby allows a NULL pointer dereference.Rather than register the IRQ relative to a valid trigger, register allIRQs in a disabled state in the device open path. This allows maskoperations on the IRQ to nest within the overall enable state governedby a valid eventfd signal. This decouples @masked, protected by the@locked spinlock from @trigger, protected via the @igate mutex.In doing so, it_x27;s guaranteed that changes to @trigger cannot race theIRQ handlers because the IRQ handler is synchronously disabled beforemodifying the trigger, and loopback triggering of the IRQ via ioctl issafe due to serialization with trigger changes via igate.For compatibility, request_irq() failures are maintained to be local tothe SET_IRQS ioctl rather than a fatal error in the open device path.This allows, for example, a userspace driver with polling mode supportto continue to work regardless of moving the request_irq() call site.This necessarily blocks all SET_IRQS access to the failed index.
已分析	2.openEulerScore	4.4
已分析	3.openEulerVector	AV:L/AC:L/PR:H/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-SP1:受影响,openEuler-20.03-LTS-SP4:受影响,openEuler-22.03-LTS:受影响,openEuler-22.03-LTS-SP1:受影响,openEuler-22.03-LTS-SP2:受影响,openEuler-22.03-LTS-SP3:受影响,master:不受影响,openEuler-22.03-LTS-Next:不受影响,openEuler-24.03-LTS:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP1:否,openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP2:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-22.03-LTS-Next:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否

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.

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@guo-mengqi
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9J7N6:CVE-2024-26813
受影响分支: openEuler-22.03-LTS-SP3/openEuler-22.03-LTS/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2
具体操作参考: https://gitee.com/help/articles/4142

@gatieme ,@xiexiuqi ,@yangyingliang ,@pi3orama ,@jiaoff ,@guo-mengqi
关闭issue前,需要将受影响的分支在合并pr时关联上当前issue编号: #I9J7N6:CVE-2024-26813
受影响分支: openEuler-22.03-LTS/openEuler-22.03-LTS-SP1/openEuler-22.03-LTS-SP2/openEuler-22.03-LTS-SP3
具体操作参考: https://gitee.com/help/articles/4142

CVE-2024-26813

影响性分析说明：
Reserved.

openEuler评分:(评分和向量)
3.9
CVSS: 3.1/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.openEuler-20.03-LTS-SP4:受影响
2.openEuler-22.03-LTS-SP3: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:正常修复
2.openEuler-22.03-LTS-SP3:正常修复
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-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(23.08.5):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1:否

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

@gitee-cmd ,@gwei3 ,@zhujianwei001 ,@yanxiaobing2020 ,@liujingang09 ,@luoyukai The CVE score needs to be reviewed (the review instruction /approve or /reject means agreement and rejection).

@guo-mengqi ,请给出NVD评分和openEuler评分不一致的理由

CVE-2024-26813

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

@ 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:受影响,openEuler-22.03-LTS-SP3: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-SP1: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	openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:正常修复,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-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-2024-26813

openEuler评分:(评分和向量)
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2024-26813

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

vfio/platform: Create persistent IRQ handlers

The vfio-platform SET_IRQS ioctl currently allows loopback triggering of
an interrupt before a signaling eventfd has been configured by the user,
which thereby allows a NULL pointer dereference.

Rather than register the IRQ relative to a valid trigger, register all
IRQs in a disabled state in the device open path. This allows mask
operations on the IRQ to nest within the overall enable state governed
by a valid eventfd signal. This decouples @masked, protected by the
@locked spinlock from @trigger, protected via the @igate mutex.

In doing so, it's guaranteed that changes to @trigger cannot race the
IRQ handlers because the IRQ handler is synchronously disabled before
modifying the trigger, and loopback triggering of the IRQ via ioctl is
safe due to serialization with trigger changes via igate.

For compatibility, request_irq() failures are maintained to be local to
the SET_IRQS ioctl rather than a fatal error in the open device path.
This allows, for example, a userspace driver with polling mode support
to continue to work regardless of moving the request_irq() call site.
This necessarily blocks all SET_IRQS access to the failed index.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/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:受影响
2.openEuler-22.03-LTS-SP3: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:正常修复
2.openEuler-22.03-LTS-SP3:正常修复
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-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(23.08.5):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1:否

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

@ 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	In the Linux kernel, the following vulnerability has been resolved:vfio/platform: Create persistent IRQ handlersThe vfio-platform SET_IRQS ioctl currently allows loopback triggering ofan interrupt before a signaling eventfd has been configured by the user,which thereby allows a NULL pointer dereference.Rather than register the IRQ relative to a valid trigger, register allIRQs in a disabled state in the device open path. This allows maskoperations on the IRQ to nest within the overall enable state governedby a valid eventfd signal. This decouples @masked, protected by the@locked spinlock from @trigger, protected via the @igate mutex.In doing so, it's guaranteed that changes to @trigger cannot race theIRQ handlers because the IRQ handler is synchronously disabled beforemodifying the trigger, and loopback triggering of the IRQ via ioctl issafe due to serialization with trigger changes via igate.For compatibility, request_irq() failures are maintained to be local tothe SET_IRQS ioctl rather than a fatal error in the open device path.This allows, for example, a userspace driver with polling mode supportto continue to work regardless of moving the request_irq() call site.This necessarily blocks all SET_IRQS access to the failed index.
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:受影响,openEuler-22.03-LTS-SP3: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-SP1: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	openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:正常修复,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-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-2024-26813

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

vfio/platform: Create persistent IRQ handlers

The vfio-platform SET_IRQS ioctl currently allows loopback triggering of
an interrupt before a signaling eventfd has been configured by the user,
which thereby allows a NULL pointer dereference.

Rather than register the IRQ relative to a valid trigger, register all
IRQs in a disabled state in the device open path. This allows mask
operations on the IRQ to nest within the overall enable state governed
by a valid eventfd signal. This decouples @masked, protected by the
@locked spinlock from @trigger, protected via the @igate mutex.

In doing so, it's guaranteed that changes to @trigger cannot race the
IRQ handlers because the IRQ handler is synchronously disabled before
modifying the trigger, and loopback triggering of the IRQ via ioctl is
safe due to serialization with trigger changes via igate.

For compatibility, request_irq() failures are maintained to be local to
the SET_IRQS ioctl rather than a fatal error in the open device path.
This allows, for example, a userspace driver with polling mode support
to continue to work regardless of moving the request_irq() call site.
This necessarily blocks all SET_IRQS access to the failed index.

openEuler评分:(评分和向量)
5.5
CVSS:3.1/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:受影响
2.openEuler-22.03-LTS-SP3: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:正常修复
2.openEuler-22.03-LTS-SP3:不修复-超出修复范围
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-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(23.08.5):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否
8.openEuler-24.03-LTS-SP1:否

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

@ 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	In the Linux kernel, the following vulnerability has been resolved:vfio/platform: Create persistent IRQ handlersThe vfio-platform SET_IRQS ioctl currently allows loopback triggering ofan interrupt before a signaling eventfd has been configured by the user,which thereby allows a NULL pointer dereference.Rather than register the IRQ relative to a valid trigger, register allIRQs in a disabled state in the device open path. This allows maskoperations on the IRQ to nest within the overall enable state governedby a valid eventfd signal. This decouples @masked, protected by the@locked spinlock from @trigger, protected via the @igate mutex.In doing so, it's guaranteed that changes to @trigger cannot race theIRQ handlers because the IRQ handler is synchronously disabled beforemodifying the trigger, and loopback triggering of the IRQ via ioctl issafe due to serialization with trigger changes via igate.For compatibility, request_irq() failures are maintained to be local tothe SET_IRQS ioctl rather than a fatal error in the open device path.This allows, for example, a userspace driver with polling mode supportto continue to work regardless of moving the request_irq() call site.This necessarily blocks all SET_IRQS access to the failed index.
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:受影响,openEuler-22.03-LTS-SP3: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-SP1: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	openEuler-20.03-LTS-SP4:正常修复,openEuler-22.03-LTS-SP3:不修复-超出修复范围,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-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.

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CVE-2024-26813

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