CVE-2022-49030
Severity CVSS v4.0:
Pending analysis
Type:
CWE-190
Integer Overflow or Wraparound
Publication date:
21/10/2024
Last modified:
24/10/2024
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
libbpf: Handle size overflow for ringbuf mmap<br />
<br />
The maximum size of ringbuf is 2GB on x86-64 host, so 2 * max_entries<br />
will overflow u32 when mapping producer page and data pages. Only<br />
casting max_entries to size_t is not enough, because for 32-bits<br />
application on 64-bits kernel the size of read-only mmap region<br />
also could overflow size_t.<br />
<br />
So fixing it by casting the size of read-only mmap region into a __u64<br />
and checking whether or not there will be overflow during mmap.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.8 (including) | 5.10.158 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.11 (including) | 5.15.82 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.16 (including) | 6.0.12 (excluding) |
| cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page