CVE-2024-42246

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Source
https://cve.org/CVERecord?id=CVE-2024-42246
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42246.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-42246
Downstream
Related
Published
2024-08-07T15:14:31.615Z
Modified
2026-03-11T07:47:58.526122Z
Summary
net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket
Details

In the Linux kernel, the following vulnerability has been resolved:

net, sunrpc: Remap EPERM in case of connection failure in xstcpsetup_socket

When using a BPF program on kernelconnect(), the call can return -EPERM. This causes xstcpsetupsocket() to loop forever, filling up the syslog and causing the kernel to potentially freeze up.

Neil suggested:

This will propagate -EPERM up into other layers which might not be ready to handle it. It might be safer to map EPERM to an error we would be more likely to expect from the network system - such as ECONNREFUSED or ENETDOWN.

ECONNREFUSED as error seems reasonable. For programs setting a different error can be out of reach (see handling in 4fbac77d2d09) in particular on kernels which do not have f10d05966196 ("bpf: Make BPFPROGRUNARRAY return -err instead of allow boolean"), thus given that it is better to simply remap for consistent behavior. UDP does handle EPERM in xsudpsendrequest().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42246.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
4fbac77d2d092b475dda9eea66da674369665427
Fixed
bc790261218952635f846aaf90bcc0974f6f62c6
Fixed
934247ea65bc5eca8bdb7f8c0ddc15cef992a5d6
Fixed
02ee1976edb21a96ce8e3fd4ef563f14cc16d041
Fixed
5d8254e012996cee1a0f9cc920531cb7e4d9a011
Fixed
f2431e7db0fe0daccb2f06bb0d23740affcd2fa6
Fixed
d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414
Fixed
f388cfd913a2b96c05339a335f365795db1b36b6
Fixed
626dfed5fa3bfb41e0dffd796032b555b69f9cde

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-42246.json"