CVE-2024-46688
Severity CVSS v4.0:
Pending analysis
Type:
CWE-787
Out-of-bounds Write
Publication date:
13/09/2024
Last modified:
19/09/2024
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails<br />
<br />
If z_erofs_gbuf_growsize() partially fails on a global buffer due to<br />
memory allocation failure or fault injection (as reported by syzbot [1]),<br />
new pages need to be freed by comparing to the existing pages to avoid<br />
memory leaks.<br />
<br />
However, the old gbuf->pages[] array may not be large enough, which can<br />
lead to null-ptr-deref or out-of-bound access.<br />
<br />
Fix this by checking against gbuf->nrpages in advance.<br />
<br />
[1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com
Impact
Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.10 (including) | 6.10.8 (excluding) |
| cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page