CVE-2024-46706
published 2024-09-13CVE-2024-46706: In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port With "earlycon…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
12.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
With "earlycon initcall_debug=1 loglevel=8" in bootargs, kernel
sometimes boot hang. It is because normal console still is not ready,
but runtime suspend is called, so early console putchar will hang
in waiting TRDE set in UARTSTAT.
The lpuart driver has auto suspend delay set to 3000ms, but during
uart_add_one_port, a child device serial ctrl will added and probed with
its pm runtime enabled(see serial_ctrl.c).
The runtime suspend call path is:
device_add
|-> bus_probe_device
|->device_initial_probe
|->__device_attach
|-> pm_runtime_get_sync(dev->parent);
|-> pm_request_idle(dev);
|-> pm_runtime_put(dev->parent);
So in the end, before normal console ready, the lpuart get runtime
suspended. And earlycon putchar will hang.
To address the issue, mark last busy just after pm_runtime_enable,
three seconds is long enough to switch from bootconsole to normal
console.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.10.7-1 (forky) | linux 6.10.7-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 43543e6f539b3e646348c253059f75e27d63c94d < 8eb92cfca6c2c5a15ab1773f3d18ab8d8f7dbb68 | 8eb92cfca6c2c5a15ab1773f3d18ab8d8f7dbb68 |
| linux | linux | >= 43543e6f539b3e646348c253059f75e27d63c94d < 3ecf625d4acb71d726bc0b49403cf68388b3d58d | 3ecf625d4acb71d726bc0b49403cf68388b3d58d |
| linux | linux | >= 43543e6f539b3e646348c253059f75e27d63c94d < dc98d76a15bc29a9a4e76f2f65f39f3e590fb15c | dc98d76a15bc29a9a4e76f2f65f39f3e590fb15c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.10.7-1 | 6.10.7-1 |
| linux | linux_kernel | >= 0 < 6.10.7-1 | 6.10.7-1 |
| linux | linux_kernel | >= 0 < 6.8.0-50.51 | 6.8.0-50.51 |
| linux | linux_kernel | >= 6.2 < 6.6.48 | 6.6.48 |
| linux | linux_kernel | >= 6.7 < 6.10.7 | 6.10.7 |
| msrc | azl3_kernel_6.6.47.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.51.1-5_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
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_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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An attacker could possibly use these to compromise the system.
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- MIPS architecture;
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- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
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- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Q
OSV
CVE-2024-46706: In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port With "earlycon in
osv·2024-09-13·CVSS 5.5
CVE-2024-46706 [MEDIUM] CVE-2024-46706: In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port With "earlycon in
In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port With "earlycon initcall_debug=1 loglevel=8" in bootargs, kernel sometimes boot hang. It is because normal console still is not ready, but runtime suspend is called, so early console putchar will hang in waiting TRDE set in UARTSTAT. The lpuart driver has auto suspend delay set to 3000ms, but during uart_add_one_port, a child device serial ctrl will added and probed with its pm runtime enabled(see serial_ctrl.c). The runtime suspend call path is: device_add |-> bus_probe_device |->device_initial_probe |->__device_attach |-> pm_runtime_get_sync(dev->parent); |-> pm_request_idle(dev); |-> pm_runtime_put(dev->parent); So in the end, before normal console ready, t
GHSA
GHSA-gggx-8wfw-w6jx: In the Linux kernel, the following vulnerability has been resolved:
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
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ghsa_unreviewed·2024-09-13
CVE-2024-46706 [MEDIUM] GHSA-gggx-8wfw-w6jx: In the Linux kernel, the following vulnerability has been resolved:
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
With "earlycon
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
With "earlycon initcall_debug=1 loglevel=8" in bootargs, kernel
sometimes boot hang. It is because normal console still is not ready,
but runtime suspend is called, so early console putchar will hang
in waiting TRDE set in UARTSTAT.
The lpuart driver has auto suspend delay set to 3000ms, but during
uart_add_one_port, a child device serial ctrl will added and probed with
its pm runtime enabled(see serial_ctrl.c).
The runtime suspend call path is:
device_add
|-> bus_probe_device
|->device_initial_probe
|->__device_attach
|-> pm_runtime_get_sync(dev->parent);
|-> pm_request_idle(dev);
|-> pm_runtime_put(dev->parent);
So in the end, before normal console read
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This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
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An attacker could possibly use these to compromise the system.
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- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
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attacker could possibly use this to cause a denial of service.
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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:
- ARM32 architecture;
- ARM64 architecture;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
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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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mo
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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;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring
Red Hat
kernel: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
vendor_redhat·2024-09-13·CVSS 5.5
CVE-2024-46706 [MEDIUM] kernel: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
kernel: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
In the Linux kernel, the following vulnerability has been resolved:
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
With "earlycon initcall_debug=1 loglevel=8" in bootargs, kernel
sometimes boot hang. It is because normal console still is not ready,
but runtime suspend is called, so early console putchar will hang
in waiting TRDE set in UARTSTAT.
The lpuart driver has auto suspend delay set to 3000ms, but during
uart_add_one_port, a child device serial ctrl will added and probed with
its pm runtime enabled(see serial_ctrl.c).
The runtime suspend call path is:
device_add
|-> bus_probe_device
|->device_initial_probe
|->__device_attach
|-> pm_runtime_get_sync(dev->parent);
|-> pm_request_idle(dev);
|->
Microsoft
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
vendor_msrc·2024-09-10·CVSS 5.5
CVE-2024-46706 [MEDIUM] tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
tty: serial: fsl_lpuart: mark last busy before uart_add_one_port
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: http
Debian
CVE-2024-46706: linux - In the Linux kernel, the following vulnerability has been resolved: tty: serial...
vendor_debian·2024·CVSS 5.5
CVE-2024-46706 [MEDIUM] CVE-2024-46706: linux - In the Linux kernel, the following vulnerability has been resolved: tty: serial...
In the Linux kernel, the following vulnerability has been resolved: tty: serial: fsl_lpuart: mark last busy before uart_add_one_port With "earlycon initcall_debug=1 loglevel=8" in bootargs, kernel sometimes boot hang. It is because normal console still is not ready, but runtime suspend is called, so early console putchar will hang in waiting TRDE set in UARTSTAT. The lpuart driver has auto suspend delay set to 3000ms, but during uart_add_one_port, a child device serial ctrl will added and probed with its pm runtime enabled(see serial_ctrl.c). The runtime suspend call path is: device_add |-> bus_probe_device |->device_initial_probe |->__device_attach |-> pm_runtime_get_sync(dev->parent); |-> pm_request_idle(dev); |-> pm_runtime_put(dev->parent); So in the end, before normal console ready, t
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-09-13
Published