The vulnerability of the `zonefs_i_size_write()` function in the `fs/zonefs/super.c` module of the Linux file system allows a attacker to access protected information or cause service interruptions.

The vulnerability of the zonefsisizewrite function in the fs/zonefs/super.c module of the Linux file system support module involves exposing confidential information. Exploiting this vulnerability could allow an attacker to gain access to protected information or cause service failures...

CVE-2022-49706

CVE-2022-49706—zonefs contains a read handling bug in zonefs_iomap_begin() where a readahead to a zone file with an offset equal to the current file size can set iomap type to IOMAP_UNWRITTEN with length 0, triggering a WARN_ON in iomap_iter and causing iomap_readahead() to loop. The patch fixes ...

CVE-2022-49706 zonefs: fix zonefs_iomap_begin() for reads

In the Linux kernel, the following vulnerability has been resolved: zonefs: fix zonefsiomapbegin for reads If a readahead is issued to a sequential zone file with an offset exactly equal to the current file size, the iomap type is set to IOMAPUNWRITTEN, which will prevent an IO, but the iomap...