CVE-2025-21695
published 2025-02-12CVE-2025-21695: In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-uart-backlight: fix serdev race The dell_uart_bl_serdev_probe() function…
PriorityP417medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.18%
7.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-uart-backlight: fix serdev race
The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.
This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.
Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().
Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
calls should be after the devm_serdev_device_open() call.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.11-1 (forky) | linux 6.12.11-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 484bae9e4d6acb5eec39e1ea47f9aa43f11b154d < d3a24d923333f75aaece9acb051d676edc0afb75 | d3a24d923333f75aaece9acb051d676edc0afb75 |
| linux | linux | >= 484bae9e4d6acb5eec39e1ea47f9aa43f11b154d < 1b2128aa2d45ab20b22548dcf4b48906298ca7fd | 1b2128aa2d45ab20b22548dcf4b48906298ca7fd |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.11-1 | 6.12.11-1 |
| linux | linux_kernel | >= 0 < 6.12.11-1 | 6.12.11-1 |
| linux | linux_kernel | >= 6.10 < 6.12.11 | 6.12.11 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu5.5MEDIUM
vendor_debian4.7LOW
vendor_redhat4.7MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-23·CVSS 5.5
CVE-2025-21695 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB networ
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-04-23·CVSS 5.5
CVE-2025-21695 [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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
- IEEE 802.15.4 subsystem;
- Open vSwitch;
- Network traffic control;
- VMware vSockets driver;
(CVE-20
Red Hat
kernel: platform/x86: dell-uart-backlight: fix serdev race
vendor_redhat·2025-02-12·CVSS 4.7
CVE-2025-21695 [MEDIUM] CWE-476 kernel: platform/x86: dell-uart-backlight: fix serdev race
kernel: platform/x86: dell-uart-backlight: fix serdev race
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-uart-backlight: fix serdev race
The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.
This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.
Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().
Note, serdev_dev
Debian
CVE-2025-21695: linux - In the Linux kernel, the following vulnerability has been resolved: platform/x8...
vendor_debian·2025·CVSS 4.7
CVE-2025-21695 [MEDIUM] CVE-2025-21695: linux - In the Linux kernel, the following vulnerability has been resolved: platform/x8...
In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-uart-backlight: fix serdev race The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open() before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384ec1 ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via devm_serdev_device_open(). Note, serdev_device_set_baudrate() and serdev_device_set_flow_control() call
OSV
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
osv·2025-04-23·CVSS 5.5
[MEDIUM] linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
linux, linux-aws, linux-gcp, linux-hwe-6.11, linux-lowlatency, linux-lowlatency-hwe-6.11, linux-oem-6.11, linux-oracle, linux-raspi, linux-realtime vulnerabilities
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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control infrastructure;
- Memory management;
- Networking core;
- Ethtool driver;
- IEEE 802.15.4 subsystem;
- Open vSwitch
OSV
linux-azure, linux-azure-6.11 vulnerabilities
osv·2025-04-23·CVSS 5.5
CVE-2025-2312 [MEDIUM] linux-azure, linux-azure-6.11 vulnerabilities
linux-azure, linux-azure-6.11 vulnerabilities
It was discovered that the CIFS network file system implementation in the
Linux kernel did not properly verify the target namespace when handling
upcalls. An attacker could use this to expose sensitive information.
(CVE-2025-2312)
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:
- GPIO subsystem;
- GPU drivers;
- IRQ chip drivers;
- Network drivers;
- Mellanox network drivers;
- x86 platform drivers;
- i.MX PM domains;
- SCSI subsystem;
- USB Serial drivers;
- AFS file system;
- GFS2 file system;
- File systems infrastructure;
- Proc file system;
- SMB network file system;
- Timer subsystem;
- Kernel CPU control i
OSV
CVE-2025-21695: In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-uart-backlight: fix serdev race The dell_uart_bl_serdev_probe()
osv·2025-02-12·CVSS 4.7
CVE-2025-21695 [MEDIUM] CVE-2025-21695: In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-uart-backlight: fix serdev race The dell_uart_bl_serdev_probe()
In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-uart-backlight: fix serdev race The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open() before setting the client ops via serdev_device_set_client_ops(). This ordering can trigger a NULL pointer dereference in the serdev controller's receive_buf handler, as it assumes serdev->ops is valid when SERPORT_ACTIVE is set. This is similar to the issue fixed in commit 5e700b384ec1 ("platform/chrome: cros_ec_uart: properly fix race condition") where devm_serdev_device_open() was called before fully initializing the device. Fix the race by ensuring client ops are set before enabling the port via devm_serdev_device_open(). Note, serdev_device_set_baudrate() and serdev_device_set_flow_control() call
GHSA
GHSA-vmvf-f857-43v5: In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-uart-backlight: fix serdev race
The dell_uart_bl_serdev_probe
ghsa_unreviewed·2025-02-12
CVE-2025-21695 [MEDIUM] CWE-476 GHSA-vmvf-f857-43v5: In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-uart-backlight: fix serdev race
The dell_uart_bl_serdev_probe
In the Linux kernel, the following vulnerability has been resolved:
platform/x86: dell-uart-backlight: fix serdev race
The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.
This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.
Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().
Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
No detection rules found.
No public exploits indexed.
2025-02-12
Published