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.
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | All Android releases from CAF using the Linux kernel |
| Linux | Linux | 1.1.1 |
| Linux | Linux | 5.7.21 and prior |
| Linux | Linux | n/a |