In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
IntheLinux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel,the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may causea cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause acacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause acacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may causea cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause acacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may causea cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
Inthe Linux kernel,the following vulnerabilityhas been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installingthe anonymousfd, wecannowsee it in userland and closeit. However, at this point wemaynot have gottenthe reference count ofthe cache,but we willput it during colsefd, so thismay cause a cacheUAF.So grabthe cache reference count before fd_install(). In addition, bykernel convention, fd is taken over bythe user land after fd_install(),andthe kernel shouldnot call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.The Linux kernel CVE team has assigned CVE-2024-40913 to this issue.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
</details>
二、漏洞分析结构反馈
影响性分析说明：
IntheLinux kernel, thefollowing vulnerability hasbeen resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing theanonymous fd,we cannowseeit in userland and closeit. However, at this point we maynothave gotten thereference count ofthe cache, butwe will putit during colse fd,so this maycause a cacheUAF.So grab thecache reference count before fd_install(). In addition, bykernel convention, fd is taken over by theuser land after fd_install(),and thekernel should notcall close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
| linux | | https://git.kernel.org/linus/4b4391e77a6bf24cba2ef1590e113d9b73b11039 | https://git.kernel.org/linus/c8383054506c77b814489c09877b5db83fd4abf2 | ubuntu |
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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:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
In the Linux kernel, the following vulnerability has been resolved:cachefiles: defer exposing anon_fd until after copy_to_user() succeedsAfter installing the anonymous fd, we can now see it in userland and closeit. However, at this point we may not have gotten the reference count ofthe cache, but we will put it during colse fd, so this may cause a cacheUAF.So grab the cache reference count before fd_install(). In addition, bykernel convention, fd is taken over by the user land after fd_install(),and the kernel should not call close_fd() after that, i.e., it should callfd_install() after everything is ready, thus fd_install() is called aftercopy_to_user() succeeds.
