Qualcomm Android - Kernel Use-After-Free via Incorrect set_page_dirty() in KGSL

Qualcomm Android - Kernel Use-After-Free via Incorrect setpagedirty in KGSL The following issue exists in the android-msm-wahoo-4.4-pie branch of https://android.googlesource.com/kernel/msm and possibly others: When kgslmementrydestroy in drivers/gpu/msm/kgsl.c is called for a writable entry with...

Qualcomm Android - Kernel Use-After-Free via Incorrect set_page_dirty() in KGSL

The following issue exists in the android-msm-wahoo-4.4-pie branch of https://android.googlesource.com/kernel/msm and possibly others: When kgslmementrydestroy in drivers/gpu/msm/kgsl.c is called for a writable entry with memtype KGSLMEMENTRYUSER, it attempts to mark the entry's pages as dirty...

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

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 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 via fdget() Optimization Exploit

Android - binder Use-After-Free via fdget Optimization Exploit This bug report describes two different issues in different branches of the binder kernel code. The first issue is in the upstream Linux kernel, commit 7f3dc0088b98 "binder: fix proc-files use-after-free"; the second issue is in the...

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...

Linux ext4: out-of-bounds memcpy via non-inline system.data xattr(CVE-2018-11412)

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

Linux Kernel 4.16.11 #LinuxKernel - #ext4_read_inline_data() Memory Corruption Exploit

Exploit for linux platform in category dos / poc ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode...

Linux Kernel ext4_read_inline_data() Memory Corruption

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

Linux Kernel 4.16.11 - ext4_read_inline_data() Memory Corruption

Linux Kernel 4.16.11 - ext4readinlinedata Memory Corruption ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in...

Linux Kernel < 4.16.11 - 'ext4_read_inline_data()' Memory Corruption

ext4 can store data for small regular files as "inline data", meaning that the data is stored inside the corresponding inode instead of in separate blocks. Inline data is stored in two places: The first 60 bytes go in the iblock field in the inode which normally contains a list of blocks instead,...

OracleVM 3.4 : Unbreakable / etc (OVMSA-2018-0017) (Meltdown)

The remote OracleVM system is missing necessary patches to address critical security updates : - drivers/char/mem.c: deny access in open operation when securelevel is set Ethan Zhao Orabug: 27234850 Orabug: 27234850 - hugetlb: fix nrpmds accounting with shared page tables Kirill A. Shutemov Orabu...

Unbreakable Enterprise kernel security update

4.1.12-112.14.14 - drivers/char/mem.c: deny access in open operation when securelevel is set Ethan Zhao Orabug: 27234850 Orabug: 27234850 - hugetlb: fix nrpmds accounting with shared page tables Kirill A. Shutemov Orabug: 26988581 - x86/IBRS: Drop unnecessary WRITEONCE Boris Ostrovsky Orabug:...

Linux kernel < 4.10.15 - Race Condition Privilege Escalation Exploit

Exploit for linux platform in category local exploits PoC for CVE-2017-10661, triggers UAF with KASan enabled in kernel 4.10 / include include include include include include include include include include include include include include include include include define RACETIME 1000000 int fd; in...

Linux kernel 4.10.15 - Race Condition Privilege Escalation

Linux kernel 4.10.15 - Race Condition Privilege Escalation / PoC for CVE-2017-10661, triggers UAF with KASan enabled in kernel 4.10 / include include include include include include include include include include include include include include include include include define RACETIME 1000000 int...

Linux kernel < 4.10.15 - Race Condition Privilege Escalation

/ PoC for CVE-2017-10661, triggers UAF with KASan enabled in kernel 4.10 / include include include include include include include include include include include include include include include include include define RACETIME 1000000 int fd; int fddumb; int count=0; void listaddthreadvoid arg in...

Linux Kernel 3.x usb-midi Local Privilege Escalation

Source: https://xairy.github.io/blog/2016/cve-2016-2384 Source: https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-2384 Source: https://www.youtube.com/watch?v=lfl1NJn1nvo Exploit-DB Note: This requires physical access to the machine, as well as local access on the system. - - - This...

Exploiting the Linux kernel via packet sockets

Guest blog post, posted by Andrey Konovalov Introduction Lately I’ve been spending some time fuzzing network-related Linux kernel interfaces with syzkaller. Besides the recently discovered vulnerability in DCCP sockets, I also found another one, this time in packet sockets. This post describes ho...