ΠΠΏΠΈΡΠ°Π½ΠΈΠ΅
In the Linux kernel, the following vulnerability has been resolved:
gpio: Restrict usage of GPIO chip irq members before initialization
GPIO chip irq members are exposed before they could be completely
initialized and this leads to race conditions.
One such issue was observed for the gc->irq.domain variable which
was accessed through the I2C interface in gpiochip_to_irq() before
it could be initialized by gpiochip_add_irqchip(). This resulted in
Kernel NULL pointer dereference.
Following are the logs for reference :-
kernel: Call Trace:
kernel: gpiod_to_irq+0x53/0x70
kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0
kernel: i2c_acpi_get_irq+0xc0/0xd0
kernel: i2c_device_probe+0x28a/0x2a0
kernel: really_probe+0xf2/0x460
kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0
To avoid such scenarios, restrict usage of GPIO chip irq members before
they are completely initialized.
A flaw was found in the GPIO support in the Linux kernel. The GPIO chip IRQ members are exposed before they are completely initialized, potentially causing a NULL pointer dereference, resulting in a system crash and a denial of service.
ΠΡΡΠ΅Ρ
This issue has been fixed in Red Hat Enterprise Linux 9.2 via RHSA-2023:2458 [1]. [1]. https://access.redhat.com/errata/RHSA-2023:2458
ΠΠ΅ΡΡ ΠΏΠΎ ΡΠΌΡΠ³ΡΠ΅Π½ΠΈΡ ΠΏΠΎΡΠ»Π΅Π΄ΡΡΠ²ΠΈΠΉ
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
ΠΠ°ΡΡΠΎΠ½ΡΡΡΠ΅ ΠΏΠ°ΠΊΠ΅ΡΡ
| ΠΠ»Π°ΡΡΠΎΡΠΌΠ° | ΠΠ°ΠΊΠ΅Ρ | Π‘ΠΎΡΡΠΎΡΠ½ΠΈΠ΅ | Π Π΅ΠΊΠΎΠΌΠ΅Π½Π΄Π°ΡΠΈΡ | Π Π΅Π»ΠΈΠ· |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel | Out of support scope | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Out of support scope | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred | ||
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2023:2458 | 09.05.2023 |
| Red Hat Enterprise Linux 9 | kernel | Fixed | RHSA-2023:2458 | 09.05.2023 |
ΠΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ ΠΏΠΎ
ΠΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½Π°Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΡ
Π‘ΡΠ°ΡΡΡ:
EPSS
5.5 Medium
CVSS3
Π‘Π²ΡΠ·Π°Π½Π½ΡΠ΅ ΡΡΠ·Π²ΠΈΠΌΠΎΡΡΠΈ
In the Linux kernel, the following vulnerability has been resolved: gpio: Restrict usage of GPIO chip irq members before initialization GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.
In the Linux kernel, the following vulnerability has been resolved: gpio: Restrict usage of GPIO chip irq members before initialization GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.
In the Linux kernel, the following vulnerability has been resolved: g ...
In the Linux kernel, the following vulnerability has been resolved: gpio: Restrict usage of GPIO chip irq members before initialization GPIO chip irq members are exposed before they could be completely initialized and this leads to race conditions. One such issue was observed for the gc->irq.domain variable which was accessed through the I2C interface in gpiochip_to_irq() before it could be initialized by gpiochip_add_irqchip(). This resulted in Kernel NULL pointer dereference. Following are the logs for reference :- kernel: Call Trace: kernel: gpiod_to_irq+0x53/0x70 kernel: acpi_dev_gpio_irq_get_by+0x113/0x1f0 kernel: i2c_acpi_get_irq+0xc0/0xd0 kernel: i2c_device_probe+0x28a/0x2a0 kernel: really_probe+0xf2/0x460 kernel: RIP: 0010:gpiochip_to_irq+0x47/0xc0 To avoid such scenarios, restrict usage of GPIO chip irq members before they are completely initialized.
Π£ΡΠ·Π²ΠΈΠΌΠΎΡΡΡ ΡΡΠ½ΠΊΡΠΈΠΉ gpiochip_to_irq() ΠΈ gpiochip_add_irqchip() ΡΠ΄ΡΠ° ΠΎΠΏΠ΅ΡΠ°ΡΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ Linux, ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡΡΠ°Ρ Π½Π°ΡΡΡΠΈΡΠ΅Π»Ρ Π²ΡΠ·Π²Π°ΡΡ ΠΎΡΠΊΠ°Π· Π² ΠΎΠ±ΡΠ»ΡΠΆΠΈΠ²Π°Π½ΠΈΠΈ
EPSS
5.5 Medium
CVSS3