CVE-2025-38718

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: sctp: linearize cloned gso packets in sctp_rcv A cloned head skb still shares these frag skbs in fraglist with the original head skb. It's not safe to access these frag skbs. syzbot reported two use-of-uninitialized-memory bugs caused by this: BUG: KMSAN: uninit-value in sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211 sctp_inq_pop+0x15b7/0x1920 net/sctp/inqueue.c:211 sctp_assoc_bh_rcv+0x1a7/0xc50 net/sctp/associola.c:998 sctp_inq_push+0x2ef/0x380 net/sctp/inqueue.c:88 sctp_backlog_rcv+0x397/0xdb0 net/sctp/input.c:331 sk_b...

Affected product and versions

Product

Linux Linux, linux kernel, debian linux

Affected versions

>= 90017accff61ae89283ad9a51f9ac46ca01633fb < d0194e391bb493aa6cec56d177b14df6b29188d5, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < 03d0cc6889e02420125510b5444b570f4bbf53d5, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < cd0e92bb2b7542fb96397ffac639b4f5b099d0cb, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < 4506bcaabe004d07be8ff09116a3024fbd6aa965, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < ea094f38d387d1b0ded5dee4a3e5720aa4ce0139, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < 7d757f17bc2ef2727994ffa6d5d6e4bc4789a770, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < fc66772607101bd2030a4332b3bd0ea3b3605250, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < 1bd5214ea681584c5886fea3ba03e49f93a43c0e, >= 90017accff61ae89283ad9a51f9ac46ca01633fb < fd60d8a086191fe33c2d719732d2482052fa6805, >= 4.8, >= 4.8 < 5.4.297, >= 5.5 < 5.10.241, >= 5.11 < 5.15.190, >= 5.16 < 6.6.103, >= 6.7 < 6.12.43, >= 6.13 < 6.15.11, >= 6.16 < 6.16.2, 6.17, 11.0

Fixed versions

5.4.297, 5.10.241, 5.15.190, 6.6.103, 6.12.43, 6.15.11, 6.16.2

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-908