CVE-2024-49977

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Source
https://cve.org/CVERecord?id=CVE-2024-49977
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49977.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-49977
Downstream
Related
Published
2024-10-21T18:02:24.480Z
Modified
2026-03-20T12:39:29.343210Z
Summary
net: stmmac: Fix zero-division error when disabling tc cbs
Details

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 "porttransmitratekbps" to be set to a value of 0, which is then passed to the "divs64" 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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49977.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b4bca4722fda928810d024350493990de39f1e40
Fixed
e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
2145583e5995598f50d66f8710c86bb1e910ac46
Fixed
b0da9504a528f05f97d926b4db74ff21917a33e9
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
521d42a1c24d638241220d4b9fa7e7a0ed02b88e
Fixed
5d43e1ad4567d67af2b42d3ab7c14152ffed25c6
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
a71b686418ee6bcb6d6365f7f6d838d9874d9c64
Fixed
03582f4752427f60817d896f1a827aff772bd31e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b8c43360f6e424131fa81d3ba8792ad8ff25a09e
Fixed
e297a2bf56d12fd7f91a0c209eb6ea84361f3368
Fixed
837d9df9c0792902710149d1a5e0991520af0f93
Fixed
675faf5a14c14a2be0b870db30a70764df81e2df
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
f01782804147a8c21f481b3342c83422c041d2c0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49977.json"