Answer in brief
CVE-2025-38572 records a Unknown severity 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.
Answer in brief
CVE-2025-38572 records a Unknown severity 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.
A CVSS score is not reported in the current record. 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.
A CVSS score is not reported in the current record. 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.