Linux · Linux Kernel · CVE-2024-26871
**Name of the Vulnerable Software and Affected Versions**
Linux kernel (affected versions not specified)
**Description**
A NULL pointer dereference error occurs in the `f2fs submit page write()` function when `io->bio` is NULL. This happens when other threads have added the `fio` to `io->bio` and submitted it before entering `f2fs submit page write()`. The error occurs at `bio get(io->bio)` when `is end zone blkaddr(sbi, fio->new blkaddr)` is true. The original code for determining zone end was moved from after "out:" to before "skip:" to ensure it is done for each `fio`.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.