In the Linux kernel, the following vulnerability has been resolved:

ntfs: Fix panic about slab-out-of-bounds caused by ntfslistxattr()

Here is a BUG report from syzbot:

BUG: KASAN: slab-out-of-bounds in ntfslistea fs/ntfs3/xattr.c:191 [inline] BUG: KASAN: slab-out-of-bounds in ntfslistxattr+0x401/0x570 fs/ntfs3/xattr.c:710 Read of size 1 at addr ffff888021acaf3d by task syz-executor128/3632

Call Trace: ntfslistea fs/ntfs3/xattr.c:191 [inline] ntfslistxattr+0x401/0x570 fs/ntfs3/xattr.c:710 vfslistxattr fs/xattr.c:457 [inline] listxattr+0x293/0x2d0 fs/xattr.c:804

Fix the logic of eaall iteration. When the ea->namelen is 0, return immediately, or Add2Ptr() would visit invalid memory in the next loop.

[almaz.alexandrovich@paragon-software.com: lines of the patch have changed]

Various Paragon Software products contain an arbitrary kernel memory mapping vulnerability within biontdrv.sys that is caused by a failure to properly validate the length of user supplied data, which can allow an attacker to perform privilege escalation exploits.

Various Paragon Software products contain an arbitrary kernel memory write vulnerability within biontdrv.sys that is caused by a failure to properly validate the length of user supplied data, which can allow an attacker to execute arbitrary code on the victim machine.

Various Paragon Software products contain a null pointer dereference vulnerability within biontdrv.sys that is caused by a lack of a valid MasterLrp structure in the input buffer, allowing an attacker to execute arbitrary code in the kernel, facilitating privilege escalation.

Various Paragon Software products contain an insecure kernel resource access vulnerability facilitated by the driver not validating the MappedSystemVa pointer before passing it to HalReturnToFirmware, which can allows an attacker the ability to compromise the service.