Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:netrom: Fix memory leak in nr_sendmsg()
syzbot reported a memory leak [1].
When function sock_alloc_send_skb() return NULL in nr_output(), the
original skb is not freed, which was allocated in nr_sendmsg(). Fix this
by freeing it before return.
[1]
BUG: memory leak
unreferenced object 0xffff888129f35500 (size 240):
comm "syz.0.17", pid 6119, jiffies 4294944652
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 10 52 28 81 88 ff ff ..........R(....
backtrace (crc 1456a3e4):
kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]
slab_post_alloc_hook mm/slub.c:4983 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
kmem_cache_alloc_node_noprof+0x36f/0x5e0 mm/slub.c:5340
__alloc_skb+0x203/0x240 net/core/skbuff.c:660
alloc_skb include/linux/skbuff.h:1383 [inline]
alloc_skb_with_frags+0x69/0x3f0 net/core/skbuff.c:6671
sock_alloc_send_pskb+0x379/0x3e0 net/core/sock.c:2965
sock_alloc_send_skb include/net/sock.h:1859 [inline]
nr_sendmsg+0x287/0x450 net/netrom/af_netrom.c:1105
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg net/socket.c:742 [inline]
sock_write_iter+0x293/0x2a0 net/socket.c:1195
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x45d/0x710 fs/read_write.c:686
ksys_write+0x143/0x170 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xa4/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having moderate severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 5.5 |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | SUSE |
|---|---|
| Base Score | 6.8 |
| Vector | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Local |
| Attack Complexity | Low |
| Attack Requirements | None |
| Privileges Required | Low |
| User Interaction | None |
| Vulnerable System Confidentiality Impact | None |
| Vulnerable System Integrity Impact | None |
| Vulnerable System Availability Impact | High |
| Subsequent System Confidentiality Impact | None |
| Subsequent System Integrity Impact | None |
| Subsequent System Availability Impact | None |
| CVSSv4 Version | 4.0 |
Note from the SUSE Security Team on the kernel-default package
SUSE will no longer fix all CVEs in the Linux Kernel anymore, but declare some bug classes as won't fix. Please refer to TID 21496 for more details. SUSE Bugzilla entry: 1256670 [NEW] No SUSE Security Announcements cross referenced.Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise High Availability Extension 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Availability Extension 16.0 | kernel-default | Unsupported |
| SUSE Linux Enterprise High Availability Extension 16.0 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP7 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.2 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.2 | kernel-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.3 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.3 | kernel-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.4 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.4 | kernel-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.5 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Module for Legacy 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Public Cloud 15 SP7 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP7 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Server 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP7 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Server 16.0 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 16.0 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 16.0 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Server 16.1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP applications 16.0 | kernel-source-azure | Unsupported |
| SUSE Linux Enterprise Server for SAP applications 16.1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | kernel-default | Unsupported |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | kernel-source | Unsupported |
| SUSE Linux Micro 6.0 | kernel-default | Unsupported |
| SUSE Linux Micro 6.0 | kernel-source | Unsupported |
| SUSE Linux Micro 6.0 | kernel-source-rt | Unsupported |
| SUSE Linux Micro 6.1 | kernel-default | Unsupported |
| SUSE Linux Micro 6.1 | kernel-source | Unsupported |
| SUSE Linux Micro 6.1 | kernel-source-rt | Unsupported |
| SUSE Linux Micro 6.2 | kernel-default | Unsupported |
| SUSE Linux Micro 6.2 | kernel-source | Unsupported |
| SUSE Real Time Module 15 SP7 | kernel-source-rt | Unsupported |
| openSUSE Leap 15.6 | kernel-default | Unsupported |
| openSUSE Leap 15.6 | kernel-source | Unsupported |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Live Patching 12 SP5 | kernel-default | Unsupported |
| SUSE Linux Enterprise Live Patching 12 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP4 | kernel-default | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-default | Unsupported |
| SUSE Linux Enterprise Live Patching 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP5-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP6-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP6-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Unsupported |
| SUSE Manager Proxy 4.3 | kernel-source | Unsupported |
| SUSE Manager Proxy LTS 4.3 | kernel-source | Unsupported |
| SUSE Manager Retail Branch Server 4.3 | kernel-source | Unsupported |
| SUSE Manager Retail Branch Server LTS 4.3 | kernel-source | Unsupported |
| SUSE Manager Server 4.3 | kernel-source | Unsupported |
| SUSE Manager Server LTS 4.3 | kernel-source | Unsupported |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE CaaS Platform 4.0 | kernel-source | Unsupported |
| SUSE Enterprise Storage 6 | kernel-source | Unsupported |
| SUSE Enterprise Storage 7 | kernel-source | Unsupported |
| SUSE Enterprise Storage 7.1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 12 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Unsupported |
| SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-default | Unsupported |
| SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Unsupported |
| SUSE Linux Enterprise Micro 5.0 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.1 | kernel-default | Unsupported |
| SUSE Linux Enterprise Micro 5.1 | kernel-rt | Unsupported |
| SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Unsupported |
| SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | kernel-source | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Unsupported |
| SUSE Linux Enterprise Server 11 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP2-BCL | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP2-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Unsupported |
| SUSE Linux Enterprise Server 15 SP6 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server 15 SP6 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Unsupported |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Unsupported |
| SUSE Manager Proxy 4.0 | kernel-source | Unsupported |
| SUSE Manager Proxy 4.1 | kernel-source | Unsupported |
| SUSE Manager Proxy 4.2 | kernel-source | Unsupported |
| SUSE Manager Retail Branch Server 4.0 | kernel-source | Unsupported |
| SUSE Manager Retail Branch Server 4.1 | kernel-source | Unsupported |
| SUSE Manager Retail Branch Server 4.2 | kernel-source | Unsupported |
| SUSE Manager Server 4.0 | kernel-source | Unsupported |
| SUSE Manager Server 4.1 | kernel-source | Unsupported |
| SUSE Manager Server 4.2 | kernel-source | Unsupported |
| SUSE OpenStack Cloud 7 | kernel-source | Unsupported |
| SUSE OpenStack Cloud 9 | kernel-source | Unsupported |
| SUSE OpenStack Cloud Crowbar 9 | kernel-source | Unsupported |
| SUSE Real Time Module 15 SP3 | kernel-source-rt | Unsupported |
| SUSE Real Time Module 15 SP4 | kernel-source-rt | Unsupported |
| SUSE Real Time Module 15 SP5 | kernel-source-rt | Unsupported |
| openSUSE Leap 15.3 | kernel-source | Unsupported |
| openSUSE Leap 15.3 | kernel-source-rt | Unsupported |
| openSUSE Leap 15.4 | kernel-source | Unsupported |
| openSUSE Leap 15.4 | kernel-source-rt | Unsupported |
| openSUSE Leap 15.5 | kernel-source | Unsupported |
| openSUSE Leap 15.5 | kernel-source-rt | Unsupported |
SUSE Timeline for this CVE
CVE page created: Wed Jan 14 14:49:24 2026CVE page last modified: Fri Mar 13 13:11:46 2026