ifuncd-up

Hacker News에 대한 답변으로... 주황색 웹사이트hn의 장난꾼들이 나를 괴롭히고 있는 것 같군요. 아래에 몇 가지 엄선된 답변을 준비했지만, 먼저 도전장을 내겠습니다: ifunc 없이 이 공격 을 시연할 수 있는 첫 번째 사람에게 제 돈 500달러 를 보내겠습니다. 진심으로 흥미롭고, 깨달음을 얻기 위해 기꺼이 지불할 의향이 있습니다. 이 저장소를 포크하고 작동하는 PoC와 함께 PR을 제출하세요. 승리하면 개인적으로 우편 주소를 요청하겠습니다. 이제 답변입니다: 이건 잘못된 나무를 짖는 격이다. 이보게, 나는 잘못된...

CVE-2026-98214

A flaw was found in the Linux kernel. A local user can bypass Security-Enhanced Linux SELinux access controls to execute restricted files on stacked filesystems. When modifying memory protections using the mprotect system call, the kernel fails to recheck security permissions on intermediate laye...

DEBIAN-CVE-2026-98215

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

AZL-106269 CVE-2026-98215 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

CVE-2026-98215

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

DEBIAN-CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

AZL-106467 CVE-2026-98214 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

UBUNTU-CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

CVE-2026-98215

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

EUVD-2026-93143

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

CVE-2026-98215 selinux: preserve user SID across nested backing files

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

CVE-2026-98215

The Linux kernel contains a vulnerability in SELinux related to how user file SIDs are preserved across nested backing files, such as overlayfs over overlayfs or FUSE passthrough . When mmap() replaces vma->vm_file with a backing file, the system may incorrectly use the SID of the mounter inst...

CVE-2026-98215 selinux: preserve user SID across nested backing files

In the Linux kernel, the following vulnerability has been resolved: selinux: preserve user SID across nested backing files SELinux saves the user file SID in a backing-file security blob so it remains available after mmap replaces vma-vmfile with a backing file. For nested backing files overlayfs...

CVE-2026-98214

A vulnerability in the Linux kernel allows the mprotect() system call to bypass SELinux checks performed by mmap() against intermediate layers of a stacked filesystem . While mmap() validates every backing layer in the stack, mprotect() only references the lowest backing file, skipping intermedia...

CVE-2026-98214

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

CVE-2026-98214 selinux: recheck intermediate backing files on mprotect()

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

CVE-2026-98214 selinux: recheck intermediate backing files on mprotect()

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...

EUVD-2026-93142

In the Linux kernel, the following vulnerability has been resolved: selinux: recheck intermediate backing files on mprotect mprotect can be used to bypass the SELinux checks that mmap performs against the intermediate layers of a stacked filesystem. mmap checks every backing layer as the request...