CVE-2022-49076

In the Linux kernel, the following vulnerability has been resolved: RDMA/hfi1: Fix use-after-free bug for mm struct Under certain conditions, such as MPIAbort, the hfi1 cleanup code may represent the last reference held on the task mm. hfi1mmurbunregister then drops the last reference and the mm ...

Linux expand_downwards() / munmap() Race Condition

Linux =4.20: expanddownwards can race with munmap page table freeing Since 4.20, domunmap downgrades the mmapsem from write-locked to read-locked after detaching the VMAs from the mmstruct, but before dropping references to pages and freeing page tables. This ought to be safe because VMA tree...

Linux - Missing Locking Between ELF coredump code and userfaultfd VMA Modification

Linux - Missing Locking Between ELF coredump code and userfaultfd VMA Modification elfcoredump has a comment back from something like 2.5.43-C3 that says: / We no longer stop all VM operations. This is because those proceses that could possibly change mapcount or the mmap / vma pages are now...

Android - binder Use-After-Free of VMA via race Between reclaim and munmap Exploit

Android - binder Use-After-Free of VMA via race Between reclaim and munmap The following bug report solely looks at the situation on the upstream master branch; while from a cursory look, at least the wahoo kernel also looks affected, I have only properly tested this on upstream master. There is ...

Android - binder Use-After-Free of VMA via race Between reclaim and munmap

The following bug report solely looks at the situation on the upstream master branch; while from a cursory look, at least the wahoo kernel also looks affected, I have only properly tested this on upstream master. There is a race condition between the direct reclaim path enters binder through the...

CVE-2005-0937

Some futex functions in futex.c for Linux kernel 2.6.x perform getuser calls while holding the mmapsem semaphore, which could allow local users to cause a deadlock condition in dopagefault by triggering getuser faults while another thread is executing mmap or other functions...