Answer in brief
CVE-2025-38572 records a High severity (CVSS 7.8) vulnerability in ipv6: reject malicious packets in ipv6_gso_segment(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <5dc60b2a00ed7629214ac0c48e43f40af2078703 || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <3f638e0b28bde7c3354a0df938ab3a96739455d1 || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <09ff062b89d8e48165247d677d1ca23d6d607e9b || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <de322cdf600fc9433845a9e944d1ca6b31cfb67e || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <ef05007b403dcc21e701cb1f30d4572ac0a9da20 || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <5489e7fc6f8be3062f8cb7e49406de4bfd94db67 || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <573b8250fc2554761db3bc2bbdbab23789d52d4e || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <ee851768e4b8371ce151fd446d24bf3ae2d18789 || >=d1da932ed4ecad2a14cbcc01ed589d617d0f0f09 <d45cf1e7d7180256e17c9ce88e32e8061a7887fe | 5dc60b2a00ed7629214ac0c48e43f40af2078703, 3f638e0b28bde7c3354a0df938ab3a96739455d1, 09ff062b89d8e48165247d677d1ca23d6d607e9b, de322cdf600fc9433845a9e944d1ca6b31cfb67e, ef05007b403dcc21e701cb1f30d4572ac0a9da20, 5489e7fc6f8be3062f8cb7e49406de4bfd94db67, 573b8250fc2554761db3bc2bbdbab23789d52d4e, ee851768e4b8371ce151fd446d24bf3ae2d18789, d45cf1e7d7180256e17c9ce88e32e8061a7887fe |
| Linux/Linuxgeneric | 3.8 | Not reported |
Published upstream
Aug 19, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ipv6: reject malicious packets in ipv6_gso_segment() syzbot was able to craft a packet with very long IPv6 extension headers leading to an overflow of skb->transport_header. This 16bit field has a limited range. Add skb_reset_transport_header_careful() helper and use it from ipv6_gso_segment() WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 skb_reset_transport_header include/linux/skbuff.h:3032 [inline] WARNING: CPU: 0 PID: 5871 at ./include/linux/skbuff.h:3032 ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 Modules linked in: CPU: 0 UID: 0 PID: 5871 Comm: syz-executor211 Not tainted 6.16.0-rc6-syzkaller-g7abc678e3084 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:skb_reset_transport_header include/linux/skbuff.h:3032 [inline] RIP: 0010:ipv6_gso_segment+0x15e2/0x21e0 net/ipv6/ip6_offload.c:151 Call Trace: <TASK> skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 nsh_gso_segment+0x54a/0xe10 net/nsh/nsh.c:110 skb_mac_gso_segment+0x31c/0x640 net/core/gso.c:53 __skb_gso_segment+0x342/0x510 net/core/gso.c:124 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x857/0x11b0 net/core/dev.c:3950 validate_xmit_skb_list+0x84/0x120 net/core/dev.c:4000 sch_direct_xmit+0xd3/0x4b0 net/sched/sch_generic.c:329 __dev_xmit_skb net/core/dev.c:4102 [inline] __dev_queue_xmit+0x17b6/0x3a70 net/core/dev.c:4679
Quoted source text, attributed separately from HOL analysis.