CVE-2024-46688
erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails
Severity Score
"-"
*CVSS v-
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
Track
*SSVC
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix out-of-bound access when z_erofs_gbuf_growsize() partially fails
If z_erofs_gbuf_growsize() partially fails on a global buffer due to
memory allocation failure or fault injection (as reported by syzbot [1]),
new pages need to be freed by comparing to the existing pages to avoid
memory leaks.
However, the old gbuf->pages[] array may not be large enough, which can
lead to null-ptr-deref or out-of-bound access.
Fix this by checking against gbuf->nrpages in advance.
[1] https://lore.kernel.org/r/000000000000f7b96e062018c6e3@google.com
*Credits:
N/A
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* Common Vulnerability Scoring System
SSVC
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Timeline
- 2024-09-11 CVE Reserved
- 2024-09-13 CVE Published
- 2024-09-14 EPSS Updated
- 2024-11-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/d6db47e571dcaecaeaafa8840d00ae849ae3907b | Vuln. Introduced |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://git.kernel.org/stable/c/49c0e081998008cde0c872c0ff9affa1ece4b878 | 2024-09-04 | |
| https://git.kernel.org/stable/c/0005e01e1e875c5e27130c5e2ed0189749d1e08a | 2024-08-21 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.10.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.10.8" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.11" | en |
Affected
| ||||||