CVE-2024-43843
riscv, bpf: Fix out-of-bounds issue when preparing trampoline image
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:
riscv, bpf: Fix out-of-bounds issue when preparing trampoline image
We get the size of the trampoline image during the dry run phase and
allocate memory based on that size. The allocated image will then be
populated with instructions during the real patch phase. But after
commit 26ef208c209a ("bpf: Use arch_bpf_trampoline_size"), the `im`
argument is inconsistent in the dry run and real patch phase. This may
cause emit_imm in RV64 to generate a different number of instructions
when generating the 'im' address, potentially causing out-of-bounds
issues. Let's emit the maximum number of instructions for the "im"
address during dry run to fix this problem.
*Credits:
N/A
CVSS Scores
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Scope
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
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* Organization's Worst-case Scenario
Timeline
- 2024-08-17 CVE Reserved
- 2024-08-17 CVE Published
- 2024-08-18 EPSS Updated
- 2024-12-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (3)
URL | Tag | Source |
---|---|---|
https://git.kernel.org/stable/c/26ef208c209a0e6eed8942a5d191b39dccfa6e38 | Vuln. Introduced |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://git.kernel.org/stable/c/3e6a1b1b179abb643ec3560c02bc3082bc92285f | 2024-08-03 | |
https://git.kernel.org/stable/c/9f1e16fb1fc9826001c69e0551d51fbbcd2d74e9 | 2024-07-01 |
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" | >= 6.8 < 6.10.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.10.3" | en |
Affected
| ||||||
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.8 < 6.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.8 < 6.11" | en |
Affected
|