CVE-2025-38727 — Infinite Loop in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 98.76%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedSep 4
Latest updateDec 15
Description
In the Linux kernel, the following vulnerability has been resolved:
netlink: avoid infinite retry looping in netlink_unicast()
netlink_attachskb() checks for the socket's read memory allocation
constraints. Firstly, it has:
rmem sk_rcvbuf)
to check if the just increased rmem value fits into the socket's receive
buffer. If not, it proceeds and tries to wait for the memory under:
rmem + skb->truesize > READ_ONCE(sk->sk_rcvbuf)
The checks don't cover the case when skb->truesize + sk->sk_rmem_…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linux9da025150b7c14a8390fc06aea314c0a4011e82c — 47d49fd07f86d1f55ea1083287303d237e9e0922+9
Also affects: Debian Linux 11.0