CVE-2025-21938 — Race Condition in Linux
Severity
4.7MEDIUMNVD
OSV7.8OSV7.1OSV6.2OSV5.5
EPSS
0.1%
top 80.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 1
Latest updateMay 29
Description
In the Linux kernel, the following vulnerability has been resolved:
mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr
If multiple connection requests attempt to create an implicit mptcp
endpoint in parallel, more than one caller may end up in
mptcp_pm_nl_append_new_local_addr because none found the address in
local_addr_list during their call to mptcp_pm_nl_get_local_id. In this
case, the concurrent new_local_addr calls may delete the address entry
created by the previo…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages6 packages
▶CVEListV5linux/linuxd045b9eb95a9b611c483897a69e7285aefdc66d7 — f1404f368c40fc6a068dad72e4ee0824ee6a78ee+5