CVE-2026-23103
published 2026-02-04CVE-2026-23103: In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.11%
1.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per ipvlan dev.
Initial code seems to be written in the assumption,
that any address change must occur under RTNL.
But it is not so for the case of IPv6. So
1) Introduce per-port addrs_lock.
2) It was needed to fix places where it was forgotten
to take lock (ipvlan_open/ipvlan_close)
This appears to be a very minor problem though.
Since it's highly unlikely that ipvlan_add_addr() will
be called on 2 CPU simultaneously. But nevertheless,
this could cause:
1) False-negative of ipvlan_addr_busy(): one interface
iterated through all port->ipvlans + ipvlan->addrs
under some ipvlan spinlock, and another added IP
under its own lock. Though this is only possible
for IPv6, since looks like only ipvlan_addr6_event() can be
called without rtnl_lock.
2) Race since ipvlan_ht_addr_add(port) is called under
different ipvlan->addrs_lock locks
This should not affect performance, since add/remove IP
is a rare situation and spinlock is not taken on fast
paths.
Affected
67 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.162-1 (bookworm) | linux 6.1.162-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.162-1 (bookworm) | linux 6.1.162-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 3c149b662cbb202a450e81f938e702ba333864ad | 3c149b662cbb202a450e81f938e702ba333864ad |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 70feb16e3fbfb10b15de1396557c38e99f1ab8df | 70feb16e3fbfb10b15de1396557c38e99f1ab8df |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 88f83e6c9cdb46b8c8ddd0ba01393362963cf589 | 88f83e6c9cdb46b8c8ddd0ba01393362963cf589 |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 04ba6de6eff61238e5397c14ac26a6578c7735a5 | 04ba6de6eff61238e5397c14ac26a6578c7735a5 |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 1f300c10d92c547c3a7d978e1212ff52f18256ed | 1f300c10d92c547c3a7d978e1212ff52f18256ed |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < 6a81e2db096913d7e43aada1c350c1282e76db39 | 6a81e2db096913d7e43aada1c350c1282e76db39 |
| linux | linux | >= 8230819494b3bf284ca7262ac5f877333147b937 < d3ba32162488283c0a4c5bedd8817aec91748802 | d3ba32162488283c0a4c5bedd8817aec91748802 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.249-1 | 5.10.249-1 |
| linux | linux_kernel | >= 0 < 6.1.162-1 | 6.1.162-1 |
| linux | linux_kernel | >= 0 < 6.12.69-1 | 6.12.69-1 |
| linux | linux_kernel | >= 0 < 6.18.8-1 | 6.18.8-1 |
| linux | linux_kernel | >= 4.17 < 5.10.249 | 5.10.249 |
| linux | linux_kernel | >= 5.11 < 5.15.199 | 5.15.199 |
| linux | linux_kernel | >= 5.16 < 6.1.162 | 6.1.162 |
| linux | linux_kernel | >= 6.13 < 6.18.8 | 6.18.8 |
| linux | linux_kernel | >= 6.2 < 6.6.122 | 6.6.122 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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- IRQ chip drivers;
- Modular ISDN driver;
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- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
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- Ethernet bonding driver;
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- ARM64 architecture;
- Block layer subsystem;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Block layer subsystem;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
- PHY drivers;
- SLIMbus drivers;
- W1 Dallas's 1-wire bus driver;
- Xen hypervisor drivers;
- BTR
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2026-04-17·CVSS 5.5
CVE-2026-23076 [MEDIUM] Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Block layer subsystem;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
- PHY drivers;
- SLIMbus drivers;
- W1 Dallas's 1-wire bus driver;
- Xen hypervisor drivers;
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-04-16·CVSS 5.5
CVE-2026-23076 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Block layer subsystem;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
- PHY drivers;
- SLIMbus drivers;
- W1 Dallas's 1-wire bus driver;
- Xen hypervisor drivers;
- BTRFS file
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 5.5
CVE-2023-54207 [MEDIUM] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bluetooth drivers;
- DMA engine subsystem;
- GPU drivers;
- HID subsystem;
- Intel Trace Hub HW tracing drivers;
- IIO ADC drivers;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- UACCE accelerator framework;
- Ethernet bonding driver;
- Network drivers;
- STMicroelectronics network drivers;
- Ethernet team driver;
- NVME drivers;
- PHY drivers;
- SLIMbus drivers;
- W1 Dallas's 1-wire bus driver;
-
Red Hat
kernel: ipvlan: Make the addrs_lock be per port
vendor_redhat·2026-02-04·CVSS 7.8
CVE-2026-23103 [HIGH] CWE-413 kernel: ipvlan: Make the addrs_lock be per port
kernel: ipvlan: Make the addrs_lock be per port
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per ipvlan dev.
Initial code seems to be written in the assumption,
that any address change must occur under RTNL.
But it is not so for the case of IPv6. So
1) Introduce per-port addrs_lock.
2) It was needed to fix places where it was forgotten
to take lock (ipvlan_open/ipvlan_close)
This appears to be a very minor problem though.
Since it's highly unlikely that ipvlan_add_addr() will
be called on 2 CPU simultaneously. But nevertheless,
this could cause:
1) False-negative of ipvlan_addr_busy(): one interface
iterated through all port->ipvlans + ipvlan->addrs
under some ipvlan spinlock, and another a
Debian
CVE-2026-23103: linux - In the Linux kernel, the following vulnerability has been resolved: ipvlan: Mak...
vendor_debian·2026·CVSS 7.8
CVE-2026-23103 [HIGH] CVE-2026-23103: linux - In the Linux kernel, the following vulnerability has been resolved: ipvlan: Mak...
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan dev. Initial code seems to be written in the assumption, that any address change must occur under RTNL. But it is not so for the case of IPv6. So 1) Introduce per-port addrs_lock. 2) It was needed to fix places where it was forgotten to take lock (ipvlan_open/ipvlan_close) This appears to be a very minor problem though. Since it's highly unlikely that ipvlan_add_addr() will be called on 2 CPU simultaneously. But nevertheless, this could cause: 1) False-negative of ipvlan_addr_busy(): one interface iterated through all port->ipvlans + ipvlan->addrs under some ipvlan spinlock, and another added IP under its own lock. Though this is only p
GHSA
GHSA-ghmm-m363-9645: In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per
ghsa_unreviewed·2026-02-04
CVE-2026-23103 [MEDIUM] CWE-667 GHSA-ghmm-m363-9645: In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Make the addrs_lock be per port
Make the addrs_lock be per port, not per ipvlan dev.
Initial code seems to be written in the assumption,
that any address change must occur under RTNL.
But it is not so for the case of IPv6. So
1) Introduce per-port addrs_lock.
2) It was needed to fix places where it was forgotten
to take lock (ipvlan_open/ipvlan_close)
This appears to be a very minor problem though.
Since it's highly unlikely that ipvlan_add_addr() will
be called on 2 CPU simultaneously. But nevertheless,
this could cause:
1) False-negative of ipvlan_addr_busy(): one interface
iterated through all port->ipvlans + ipvlan->addrs
under some ipvlan spinlock, and another added IP
under its own lock. Though this is
OSV
CVE-2026-23103: In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per i
osv·2026-02-04·CVSS 5.5
CVE-2026-23103 [MEDIUM] CVE-2026-23103: In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per i
In the Linux kernel, the following vulnerability has been resolved: ipvlan: Make the addrs_lock be per port Make the addrs_lock be per port, not per ipvlan dev. Initial code seems to be written in the assumption, that any address change must occur under RTNL. But it is not so for the case of IPv6. So 1) Introduce per-port addrs_lock. 2) It was needed to fix places where it was forgotten to take lock (ipvlan_open/ipvlan_close) This appears to be a very minor problem though. Since it's highly unlikely that ipvlan_add_addr() will be called on 2 CPU simultaneously. But nevertheless, this could cause: 1) False-negative of ipvlan_addr_busy(): one interface iterated through all port->ipvlans + ipvlan->addrs under some ipvlan spinlock, and another added IP under its own lock. Though this is only p
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/04ba6de6eff61238e5397c14ac26a6578c7735a5https://git.kernel.org/stable/c/1f300c10d92c547c3a7d978e1212ff52f18256edhttps://git.kernel.org/stable/c/3c149b662cbb202a450e81f938e702ba333864adhttps://git.kernel.org/stable/c/6a81e2db096913d7e43aada1c350c1282e76db39https://git.kernel.org/stable/c/70feb16e3fbfb10b15de1396557c38e99f1ab8dfhttps://git.kernel.org/stable/c/88f83e6c9cdb46b8c8ddd0ba01393362963cf589https://git.kernel.org/stable/c/d3ba32162488283c0a4c5bedd8817aec91748802https://cert-portal.siemens.com/productcert/html/ssa-019113.html
2026-02-04
Published