CVE-2024-42304 — Linux vulnerability
37 documents6 sources
Severity
5.5MEDIUMNVD
OSV8.8OSV7.1
EPSS
0.0%
top 92.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 17
Latest updateJan 9
Description
In the Linux kernel, the following vulnerability has been resolved:
ext4: make sure the first directory block is not a hole
The syzbot constructs a directory that has no dirblock but is non-inline,
i.e. the first directory block is a hole. And no errors are reported when
creating files in this directory in the following flow.
ext4_mknod
...
ext4_add_entry
// Read block 0
ext4_read_dirblock(dir, block, DIRENT)
bh = ext4_bread(NULL, inode, block, 0)
if (!bh && (type == INDEX || type == DIRENT_H…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages6 packages
▶CVEListV5linux/linux3a17ca864baffc0c6f6e8aad525aa4365775a193 — d81d7e347d1f1f48a5634607d39eb90c161c8afe+12