CVE-2024-26998
published 2024-05-01CVE-2024-26998: In the Linux kernel, the following vulnerability has been resolved: serial: core: Clearing the circular buffer before NULLifying it The circular buffer is…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
13.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
serial: core: Clearing the circular buffer before NULLifying it
The circular buffer is NULLified in uart_tty_port_shutdown()
under the spin lock. However, the PM or other timer based callbacks
may still trigger after this event without knowning that buffer pointer
is not valid. Since the serial code is a bit inconsistent in checking
the buffer state (some rely on the head-tail positions, some on the
buffer pointer), it's better to have both aligned, i.e. buffer pointer
to be NULL and head-tail possitions to be the same, meaning it's empty.
This will prevent asynchronous calls to dereference NULL pointer as
reported recently in 8250 case:
BUG: kernel NULL pointer dereference, address: 00000cf5
Workqueue: pm pm_runtime_work
EIP: serial8250_tx_chars (drivers/tty/serial/8250/8250_port.c:1809)
...
? serial8250_tx_chars (drivers/tty/serial/8250/8250_port.c:1809)
__start_tx (drivers/tty/serial/8250/8250_port.c:1551)
serial8250_start_tx (drivers/tty/serial/8250/8250_port.c:1654)
serial_port_runtime_suspend (include/linux/serial_core.h:667 drivers/tty/serial/serial_port.c:63)
__rpm_callback (drivers/base/power/runtime.c:393)
? serial_port_remove (drivers/tty/serial/serial_port.c:50)
rpm_suspend (drivers/base/power/runtime.c:447)
The proposed change will prevent ->start_tx() to be called during
suspend on shut down port.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.8.9-1 (forky) | linux 6.8.9-1 (forky) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 43066e32227ecde674e8ae1fcdd4a1ede67680c2 < bb1118905e875c111d7ccef9aee86ac5e4e7f985 | bb1118905e875c111d7ccef9aee86ac5e4e7f985 |
| linux | linux | >= 43066e32227ecde674e8ae1fcdd4a1ede67680c2 < 9cf7ea2eeb745213dc2a04103e426b960e807940 | 9cf7ea2eeb745213dc2a04103e426b960e807940 |
| linux | linux | >= 434beb66368d4fb4d3119c2116b9398500adbf47 < 7ae7104d54342433a3a73975f6569beefdd86350 | 7ae7104d54342433a3a73975f6569beefdd86350 |
| linux | linux | >= 6.6.24 < 6.6.29 | 6.6.29 |
| linux | linux | >= 6.7.12 < 6.8 | 6.8 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.8.9-1 | 6.8.9-1 |
| linux | linux_kernel | >= 0 < 6.8.9-1 | 6.8.9-1 |
| linux | linux_kernel | >= 0 < 6.8.0-38.38 | 6.8.0-38.38 |
| linux | linux_kernel | >= 6.6.24 < 6.6.29 | 6.6.29 |
| linux | linux_kernel | >= 6.7.12 < 6.8 | 6.8 |
| linux | linux_kernel | >= 6.8 < 6.8.8 | 6.8.8 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv6.8MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu4.6MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-26
CVE-2024-35929 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framework and drivers;
- Data acquisition framework and
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-23·CVSS 4.6
CVE-2024-35967 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framewo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-16·CVSS 4.6
CVE-2024-35946 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framewo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-07-11·CVSS 4.6
CVE-2024-35977 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framewo
Red Hat
kernel: serial: core: Clearing the circular buffer before NULLifying it
vendor_redhat·2024-05-01·CVSS 5.5
CVE-2024-26998 [MEDIUM] kernel: serial: core: Clearing the circular buffer before NULLifying it
kernel: serial: core: Clearing the circular buffer before NULLifying it
In the Linux kernel, the following vulnerability has been resolved:
serial: core: Clearing the circular buffer before NULLifying it
The circular buffer is NULLified in uart_tty_port_shutdown()
under the spin lock. However, the PM or other timer based callbacks
may still trigger after this event without knowning that buffer pointer
is not valid. Since the serial code is a bit inconsistent in checking
the buffer state (some rely on the head-tail positions, some on the
buffer pointer), it's better to have both aligned, i.e. buffer pointer
to be NULL and head-tail possitions to be the same, meaning it's empty.
This will prevent asynchronous calls to dereference NULL pointer as
reported recently in 8250 case:
BUG: kernel N
Debian
CVE-2024-26998: linux - In the Linux kernel, the following vulnerability has been resolved: serial: cor...
vendor_debian·2024·CVSS 5.5
CVE-2024-26998 [MEDIUM] CVE-2024-26998: linux - In the Linux kernel, the following vulnerability has been resolved: serial: cor...
In the Linux kernel, the following vulnerability has been resolved: serial: core: Clearing the circular buffer before NULLifying it The circular buffer is NULLified in uart_tty_port_shutdown() under the spin lock. However, the PM or other timer based callbacks may still trigger after this event without knowning that buffer pointer is not valid. Since the serial code is a bit inconsistent in checking the buffer state (some rely on the head-tail positions, some on the buffer pointer), it's better to have both aligned, i.e. buffer pointer to be NULL and head-tail possitions to be the same, meaning it's empty. This will prevent asynchronous calls to dereference NULL pointer as reported recently in 8250 case: BUG: kernel NULL pointer dereference, address: 00000cf5 Workqueue: pm pm_runtime_work
OSV
linux-oracle vulnerabilities
osv·2024-07-26
linux-oracle vulnerabilities
linux-oracle vulnerabilities
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- Cryptographic API;
- Buffer Sharing and Synchronization framew
OSV
linux-aws vulnerabilities
osv·2024-07-23·CVSS 6.8
CVE-2024-24857 [MEDIUM] linux-aws vulnerabilities
linux-aws vulnerabilities
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- Cryptographic AP
OSV
linux-gke, linux-nvidia vulnerabilities
osv·2024-07-16·CVSS 6.8
CVE-2024-24857 [MEDIUM] linux-gke, linux-nvidia vulnerabilities
linux-gke, linux-nvidia vulnerabilities
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- Cr
OSV
linux, linux-azure, linux-gcp, linux-ibm, linux-intel, linux-lowlatency, linux-oem-6.8, linux-raspi vulnerabilities
osv·2024-07-11·CVSS 6.8
CVE-2024-24857 [MEDIUM] linux, linux-azure, linux-gcp, linux-ibm, linux-intel, linux-lowlatency, linux-oem-6.8, linux-raspi vulnerabilities
linux, linux-azure, linux-gcp, linux-ibm, linux-intel, linux-lowlatency, linux-oem-6.8, linux-raspi vulnerabilities
It was discovered that a race condition existed in the Bluetooth subsystem
in the Linux kernel when modifying certain settings values through debugfs.
A privileged local attacker could use this to cause a denial of service.
(CVE-2024-24857, CVE-2024-24858, CVE-2024-24859)
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;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Compute Acceleration Framework;
- Accessibility subsystem;
- Android drivers;
- Drivers core;
- Bluetooth drivers;
-
OSV
CVE-2024-26998: In the Linux kernel, the following vulnerability has been resolved: serial: core: Clearing the circular buffer before NULLifying it The circular buffe
osv·2024-05-01·CVSS 5.5
CVE-2024-26998 [MEDIUM] CVE-2024-26998: In the Linux kernel, the following vulnerability has been resolved: serial: core: Clearing the circular buffer before NULLifying it The circular buffe
In the Linux kernel, the following vulnerability has been resolved: serial: core: Clearing the circular buffer before NULLifying it The circular buffer is NULLified in uart_tty_port_shutdown() under the spin lock. However, the PM or other timer based callbacks may still trigger after this event without knowning that buffer pointer is not valid. Since the serial code is a bit inconsistent in checking the buffer state (some rely on the head-tail positions, some on the buffer pointer), it's better to have both aligned, i.e. buffer pointer to be NULL and head-tail possitions to be the same, meaning it's empty. This will prevent asynchronous calls to dereference NULL pointer as reported recently in 8250 case: BUG: kernel NULL pointer dereference, address: 00000cf5 Workqueue: pm pm_runtime_work
GHSA
GHSA-r65x-4xhj-7g65: In the Linux kernel, the following vulnerability has been resolved:
serial: core: Clearing the circular buffer before NULLifying it
The circular buf
ghsa_unreviewed·2024-05-01
CVE-2024-26998 [MEDIUM] CWE-476 GHSA-r65x-4xhj-7g65: In the Linux kernel, the following vulnerability has been resolved:
serial: core: Clearing the circular buffer before NULLifying it
The circular buf
In the Linux kernel, the following vulnerability has been resolved:
serial: core: Clearing the circular buffer before NULLifying it
The circular buffer is NULLified in uart_tty_port_shutdown()
under the spin lock. However, the PM or other timer based callbacks
may still trigger after this event without knowning that buffer pointer
is not valid. Since the serial code is a bit inconsistent in checking
the buffer state (some rely on the head-tail positions, some on the
buffer pointer), it's better to have both aligned, i.e. buffer pointer
to be NULL and head-tail possitions to be the same, meaning it's empty.
This will prevent asynchronous calls to dereference NULL pointer as
reported recently in 8250 case:
BUG: kernel NULL pointer dereference, address: 00000cf5
Workqueue: pm pm_runtime_wo
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/7ae7104d54342433a3a73975f6569beefdd86350https://git.kernel.org/stable/c/9cf7ea2eeb745213dc2a04103e426b960e807940https://git.kernel.org/stable/c/bb1118905e875c111d7ccef9aee86ac5e4e7f985https://git.kernel.org/stable/c/7ae7104d54342433a3a73975f6569beefdd86350https://git.kernel.org/stable/c/9cf7ea2eeb745213dc2a04103e426b960e807940https://git.kernel.org/stable/c/bb1118905e875c111d7ccef9aee86ac5e4e7f985https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/
2024-05-01
Published