🚨 CVE-2023-53457
In the Linux kernel, the following vulnerability has been resolved:

FS: JFS: Fix null-ptr-deref Read in txBegin

Syzkaller reported an issue where txBegin may be called
on a superblock in a read-only mounted filesystem which leads
to NULL pointer deref. This could be solved by checking if
the filesystem is read-only before calling txBegin, and returning
with appropiate error code.