CVE-2023-52574
published 2024-03-02CVE-2023-52574: In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug as…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
14.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed
Get a null-ptr-deref bug as follows with reproducer [1].
BUG: kernel NULL pointer dereference, address: 0000000000000228
...
RIP: 0010:vlan_dev_hard_header+0x35/0x140 [8021q]
...
Call Trace:
? __die+0x24/0x70
? page_fault_oops+0x82/0x150
? exc_page_fault+0x69/0x150
? asm_exc_page_fault+0x26/0x30
? vlan_dev_hard_header+0x35/0x140 [8021q]
? vlan_dev_hard_header+0x8e/0x140 [8021q]
neigh_connected_output+0xb2/0x100
ip6_finish_output2+0x1cb/0x520
? nf_hook_slow+0x43/0xc0
? ip6_mtu+0x46/0x80
ip6_finish_output+0x2a/0xb0
mld_sendpack+0x18f/0x250
mld_ifc_work+0x39/0x160
process_one_work+0x1e6/0x3f0
worker_thread+0x4d/0x2f0
? __pfx_worker_thread+0x10/0x10
kthread+0xe5/0x120
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1b/0x30
[1]
$ teamd -t team0 -d -c '{"runner": {"name": "loadbalance"}}'
$ ip link add name t-dummy type dummy
$ ip link add link t-dummy name t-dummy.100 type vlan id 100
$ ip link add name t-nlmon type nlmon
$ ip link set t-nlmon master team0
$ ip link set t-nlmon nomaster
$ ip link set t-dummy up
$ ip link set team0 up
$ ip link set t-dummy.100 down
$ ip link set t-dummy.100 master team0
When enslave a vlan device to team device and team device type is changed
from non-ether to ether, header_ops of team device is changed to
vlan_header_ops. That is incorrect and will trigger null-ptr-deref
for vlan->real_dev in vlan_dev_hard_header() because team device is not
a vlan device.
Cache eth_header_ops in team_setup(), then assign cached header_ops to
header_ops of team net device when its type is changed from non-ether
to ether to fix the bug.
Affected
25 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.64-1 (bookworm) | linux 6.1.64-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < 1779eb51b9cc628cee551f252701a85a2a50a457 | 1779eb51b9cc628cee551f252701a85a2a50a457 |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < a7fb47b9711101d2405b0eb1276fb1f9b9b270c7 | a7fb47b9711101d2405b0eb1276fb1f9b9b270c7 |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < c5f6478686bb45f453031594ae19b6c9723a780d | c5f6478686bb45f453031594ae19b6c9723a780d |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < b44dd92e2afd89eb6e9d27616858e72a67bdc1a7 | b44dd92e2afd89eb6e9d27616858e72a67bdc1a7 |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < cd05eec2ee0cc396813a32ef675634e403748255 | cd05eec2ee0cc396813a32ef675634e403748255 |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < 2f0acb0736ecc3eb85dc80ad2790d634dcb10b58 | 2f0acb0736ecc3eb85dc80ad2790d634dcb10b58 |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < cac50d9f5d876be32cb9aa21c74018468900284d | cac50d9f5d876be32cb9aa21c74018468900284d |
| linux | linux | >= 1d76efe1577b4323609b1bcbfafa8b731eda071a < 492032760127251e5540a5716a70996bacf2a3fd | 492032760127251e5540a5716a70996bacf2a3fd |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.205-1 | 5.10.205-1 |
| linux | linux_kernel | >= 0 < 6.1.64-1 | 6.1.64-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 0 < 4.4.0-274.308 | 4.4.0-274.308 |
| linux | linux_kernel | >= 0 < 4.15.0-243.255 | 4.15.0-243.255 |
| linux | linux_kernel | >= 3.7 < 4.14.327 | 4.14.327 |
| linux | linux_kernel | >= 4.15 < 4.19.296 | 4.19.296 |
| linux | linux_kernel | >= 4.20 < 5.4.258 | 5.4.258 |
| linux | linux_kernel | >= 5.11 < 5.15.134 | 5.15.134 |
| linux | linux_kernel | >= 5.16 < 6.1.56 | 6.1.56 |
| linux | linux_kernel | >= 5.5 < 5.10.198 | 5.10.198 |
| linux | linux_kernel | >= 6.2 < 6.5.6 | 6.5.6 |
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_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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to expose sensitive information from the host OS. (CVE-2025-40300)
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
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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:
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- GPU drivers;
- HSI subsystem;
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flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
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Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Ext4 file system;
- Timer subsystem;
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Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Framebuffer layer;
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- Network file system (NFS) server daemon;
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Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Ext4 file system;
- Timer subsystem;
- DCCP (Datagram Congestion Control Protocol);
- IPv6 networking;
- NET/ROM l
GHSA
GHSA-6vm2-4jg8-fq6m: In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed
Get a null-ptr-deref b
ghsa_unreviewed·2024-03-03
CVE-2023-52574 [MEDIUM] CWE-476 GHSA-6vm2-4jg8-fq6m: In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed
Get a null-ptr-deref b
In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed
Get a null-ptr-deref bug as follows with reproducer [1].
BUG: kernel NULL pointer dereference, address: 0000000000000228
...
RIP: 0010:vlan_dev_hard_header+0x35/0x140 [8021q]
...
Call Trace:
? __die+0x24/0x70
? page_fault_oops+0x82/0x150
? exc_page_fault+0x69/0x150
? asm_exc_page_fault+0x26/0x30
? vlan_dev_hard_header+0x35/0x140 [8021q]
? vlan_dev_hard_header+0x8e/0x140 [8021q]
neigh_connected_output+0xb2/0x100
ip6_finish_output2+0x1cb/0x520
? nf_hook_slow+0x43/0xc0
? ip6_mtu+0x46/0x80
ip6_finish_output+0x2a/0xb0
mld_sendpack+0x18f/0x250
mld_ifc_work+0x39/0x160
process_one_work+0x1e6/0x3f0
worker_thread+0x4d/0x2f0
? __pfx_worker_thread+0x10/0x10
kthread+0xe5/0x1
OSV
CVE-2023-52574: In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug
osv·2024-03-02·CVSS 5.5
CVE-2023-52574 [MEDIUM] CVE-2023-52574: In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug
In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug as follows with reproducer [1]. BUG: kernel NULL pointer dereference, address: 0000000000000228 ... RIP: 0010:vlan_dev_hard_header+0x35/0x140 [8021q] ... Call Trace: ? __die+0x24/0x70 ? page_fault_oops+0x82/0x150 ? exc_page_fault+0x69/0x150 ? asm_exc_page_fault+0x26/0x30 ? vlan_dev_hard_header+0x35/0x140 [8021q] ? vlan_dev_hard_header+0x8e/0x140 [8021q] neigh_connected_output+0xb2/0x100 ip6_finish_output2+0x1cb/0x520 ? nf_hook_slow+0x43/0xc0 ? ip6_mtu+0x46/0x80 ip6_finish_output+0x2a/0xb0 mld_sendpack+0x18f/0x250 mld_ifc_work+0x39/0x160 process_one_work+0x1e6/0x3f0 worker_thread+0x4d/0x2f0 ? __pfx_worker_thread+0x10/0x10 kthread+0xe5/0x120 ?
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CVE-2024-50067 [MEDIUM] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- Cryptographic API;
- ACPI drivers;
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Hardware monitoring drivers;
- InfiniBand dri
Ubuntu
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vendor_ubuntu·2025-11-19·CVSS 5.5
CVE-2023-52650 [MEDIUM] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Media drivers;
- Ethernet team driver;
- SPI subsystem;
- USB core drivers;
- Framebuf
Ubuntu
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vendor_ubuntu·2025-11-10·CVSS 5.5
CVE-2025-38617 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- Virtio block driver;
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Media drivers;
- Network drivers;
- Ethernet team driver;
- TTY d
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-11-07·CVSS 5.5
CVE-2025-38352 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Ext4 file system;
- Timer subsystem;
- DCCP (Datagram Congestio
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-11-06·CVSS 5.5
CVE-2024-50299 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- TTY drivers;
- Ext4 file system;
- Timer subsystem;
- DCCP (Datagram Co
Ubuntu
Linux kernel (KVM) vulnerabilities
vendor_ubuntu·2025-10-30·CVSS 5.5
CVE-2025-38352 [MEDIUM] Linux kernel (KVM) vulnerabilities
Title: Linux kernel (KVM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Framebuffer layer;
- BTRFS file system;
- Ext4 file system;
- Net
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-10-30·CVSS 5.5
CVE-2023-52574 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Ext4 file system;
- Timer subsystem;
- DCCP (Datagram Congestion Contro
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-10-30·CVSS 5.5
CVE-2023-52574 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered
that the Linux kernel contained insufficient branch predictor isolation
between a guest and a userspace hypervisor for certain processors. This
flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this
to expose sensitive information from the host OS. (CVE-2025-40300)
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:
- DMA engine subsystem;
- GPU drivers;
- HSI subsystem;
- Ethernet team driver;
- Ext4 file system;
- Timer subsystem;
- DCCP (Datagram Congestion
Red Hat
kernel: team: NULL pointer dereference when team device type is changed
vendor_redhat·2024-03-02·CVSS 5.5
CVE-2023-52574 [MEDIUM] CWE-476 kernel: team: NULL pointer dereference when team device type is changed
kernel: team: NULL pointer dereference when team device type is changed
In the Linux kernel, the following vulnerability has been resolved:
team: fix null-ptr-deref when team device type is changed
Get a null-ptr-deref bug as follows with reproducer [1].
BUG: kernel NULL pointer dereference, address: 0000000000000228
...
RIP: 0010:vlan_dev_hard_header+0x35/0x140 [8021q]
...
Call Trace:
? __die+0x24/0x70
? page_fault_oops+0x82/0x150
? exc_page_fault+0x69/0x150
? asm_exc_page_fault+0x26/0x30
? vlan_dev_hard_header+0x35/0x140 [8021q]
? vlan_dev_hard_header+0x8e/0x140 [8021q]
neigh_connected_output+0xb2/0x100
ip6_finish_output2+0x1cb/0x520
? nf_hook_slow+0x43/0xc0
? ip6_mtu+0x46/0x80
ip6_finish_output+0x2a/0xb0
mld_sendpack+0x18f/0x250
mld_ifc_work+0x39/0x160
process_one_work+0x1e6/0x3f0
wor
Debian
CVE-2023-52574: linux - In the Linux kernel, the following vulnerability has been resolved: team: fix n...
vendor_debian·2023·CVSS 5.5
CVE-2023-52574 [MEDIUM] CVE-2023-52574: linux - In the Linux kernel, the following vulnerability has been resolved: team: fix n...
In the Linux kernel, the following vulnerability has been resolved: team: fix null-ptr-deref when team device type is changed Get a null-ptr-deref bug as follows with reproducer [1]. BUG: kernel NULL pointer dereference, address: 0000000000000228 ... RIP: 0010:vlan_dev_hard_header+0x35/0x140 [8021q] ... Call Trace: ? __die+0x24/0x70 ? page_fault_oops+0x82/0x150 ? exc_page_fault+0x69/0x150 ? asm_exc_page_fault+0x26/0x30 ? vlan_dev_hard_header+0x35/0x140 [8021q] ? vlan_dev_hard_header+0x8e/0x140 [8021q] neigh_connected_output+0xb2/0x100 ip6_finish_output2+0x1cb/0x520 ? nf_hook_slow+0x43/0xc0 ? ip6_mtu+0x46/0x80 ip6_finish_output+0x2a/0xb0 mld_sendpack+0x18f/0x250 mld_ifc_work+0x39/0x160 process_one_work+0x1e6/0x3f0 worker_thread+0x4d/0x2f0 ? __pfx_worker_thread+0x10/0x10 kthread+0xe5/0x120 ?
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1779eb51b9cc628cee551f252701a85a2a50a457https://git.kernel.org/stable/c/2f0acb0736ecc3eb85dc80ad2790d634dcb10b58https://git.kernel.org/stable/c/492032760127251e5540a5716a70996bacf2a3fdhttps://git.kernel.org/stable/c/a7fb47b9711101d2405b0eb1276fb1f9b9b270c7https://git.kernel.org/stable/c/b44dd92e2afd89eb6e9d27616858e72a67bdc1a7https://git.kernel.org/stable/c/c5f6478686bb45f453031594ae19b6c9723a780dhttps://git.kernel.org/stable/c/cac50d9f5d876be32cb9aa21c74018468900284dhttps://git.kernel.org/stable/c/cd05eec2ee0cc396813a32ef675634e403748255https://git.kernel.org/stable/c/1779eb51b9cc628cee551f252701a85a2a50a457https://git.kernel.org/stable/c/2f0acb0736ecc3eb85dc80ad2790d634dcb10b58https://git.kernel.org/stable/c/492032760127251e5540a5716a70996bacf2a3fdhttps://git.kernel.org/stable/c/a7fb47b9711101d2405b0eb1276fb1f9b9b270c7https://git.kernel.org/stable/c/b44dd92e2afd89eb6e9d27616858e72a67bdc1a7https://git.kernel.org/stable/c/c5f6478686bb45f453031594ae19b6c9723a780dhttps://git.kernel.org/stable/c/cac50d9f5d876be32cb9aa21c74018468900284dhttps://git.kernel.org/stable/c/cd05eec2ee0cc396813a32ef675634e403748255
2024-03-02
Published