CVE-2024-49977
net: stmmac: Fix zero-division error when disabling tc cbs
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:
net: stmmac: Fix zero-division error when disabling tc cbs
The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider
when offload is disabled") allows the "port_transmit_rate_kbps" to be
set to a value of 0, which is then passed to the "div_s64" function when
tc-cbs is disabled. This leads to a zero-division error.
When tc-cbs is disabled, the idleslope, sendslope, and credit values the
credit values are not required to be configured. Therefore, adding a return
statement after setting the txQ mode to DCB when tc-cbs is disabled would
prevent a zero-division error.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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* Common Vulnerability Scoring System
SSVC
- Decision:Track
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2024-10-21 CVE Reserved
- 2024-10-21 CVE Published
- 2024-10-26 EPSS Updated
- 2024-11-19 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (13)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/b4bca4722fda928810d024350493990de39f1e40 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/2145583e5995598f50d66f8710c86bb1e910ac46 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/521d42a1c24d638241220d4b9fa7e7a0ed02b88e | Vuln. Introduced | |
| https://git.kernel.org/stable/c/a71b686418ee6bcb6d6365f7f6d838d9874d9c64 | Vuln. Introduced | |
| https://git.kernel.org/stable/c/b8c43360f6e424131fa81d3ba8792ad8ff25a09e | Vuln. Introduced | |
| https://git.kernel.org/stable/c/f01782804147a8c21f481b3342c83422c041d2c0 | Vuln. Introduced |
| URL | Date | SRC |
|---|
| 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" | >= 5.10.221 < 5.10.227 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10.221 < 5.10.227" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 5.15.162 < 5.15.168 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.162 < 5.15.168" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.1.96 < 6.1.113 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.96 < 6.1.113" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.6.36 < 6.6.55 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6.36 < 6.6.55" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.10.14 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.10.14" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.11.3 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.11.3" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 6.10 < 6.12 Search vendor "Linux" for product "Linux Kernel" and version " >= 6.10 < 6.12" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.9.7 Search vendor "Linux" for product "Linux Kernel" and version "6.9.7" | en |
Affected
| ||||||