CVE-2021-47500
published 2024-05-24CVE-2021-47500: In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
15.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
iio: mma8452: Fix trigger reference couting
The mma8452 driver directly assigns a trigger to the struct iio_dev. The
IIO core when done using this trigger will call `iio_trigger_put()` to drop
the reference count by 1.
Without the matching `iio_trigger_get()` in the driver the reference count
can reach 0 too early, the trigger gets freed while still in use and a
use-after-free occurs.
Fix this by getting a reference to the trigger before assigning it to the
IIO device.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.15-1 (bookworm) | linux 5.15.15-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < 094d513b78b1714113bc016684b8142382e071ba | 094d513b78b1714113bc016684b8142382e071ba |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < fb75cc4740d81264cd5bcb0e17d961d018a8be96 | fb75cc4740d81264cd5bcb0e17d961d018a8be96 |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < 794c0898f6bf39a458655d5fb4af70ec43a5cfcb | 794c0898f6bf39a458655d5fb4af70ec43a5cfcb |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < f5deab10ced368c807866283f8b79144c4823be8 | f5deab10ced368c807866283f8b79144c4823be8 |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < acf0088ac073ca6e7f4cad6acac112177e08df5e | acf0088ac073ca6e7f4cad6acac112177e08df5e |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < db12d95085367de8b0223929d1332731024441f1 | db12d95085367de8b0223929d1332731024441f1 |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < c43517071dfc9fce34f8f69dbb98a86017f6b739 | c43517071dfc9fce34f8f69dbb98a86017f6b739 |
| linux | linux | >= ae6d9ce05691bf79694074db7c7da980080548af < cd0082235783f814241a1c9483fb89e405f4f892 | cd0082235783f814241a1c9483fb89e405f4f892 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.92-1 | 5.10.92-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 4.4.0-268.302 | 4.4.0-268.302 |
| linux | linux_kernel | >= 4.10 < 4.14.258 | 4.14.258 |
| linux | linux_kernel | >= 4.15 < 4.19.221 | 4.19.221 |
| linux | linux_kernel | >= 4.2 < 4.4.295 | 4.4.295 |
| linux | linux_kernel | >= 4.20 < 5.4.165 | 5.4.165 |
| linux | linux_kernel | >= 4.5 < 4.9.293 | 4.9.293 |
| linux | linux_kernel | >= 5.11 < 5.15.8 | 5.15.8 |
| linux | linux_kernel | >= 5.5 < 5.10.85 | 5.10.85 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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Ubuntu
Linux kernel (Xenial HWE) vulnerabilities
vendor_ubuntu·2025-05-13·CVSS 7.8
CVE-2024-56650 [HIGH] Linux kernel (Xenial HWE) vulnerabilities
Title: Linux kernel (Xenial HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2025-05-12·CVSS 7.8
CVE-2024-56650 [HIGH] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2025-05-12·CVSS 7.8
CVE-2024-56650 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file system;
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2025-05-12·CVSS 7.8
CVE-2023-52741 [HIGH] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file s
Red Hat
kernel: iio: mma8452: Fix trigger reference couting
vendor_redhat·2024-05-24·CVSS 7.8
CVE-2021-47500 [HIGH] CWE-911 kernel: iio: mma8452: Fix trigger reference couting
kernel: iio: mma8452: Fix trigger reference couting
In the Linux kernel, the following vulnerability has been resolved:
iio: mma8452: Fix trigger reference couting
The mma8452 driver directly assigns a trigger to the struct iio_dev. The
IIO core when done using this trigger will call `iio_trigger_put()` to drop
the reference count by 1.
Without the matching `iio_trigger_get()` in the driver the reference count
can reach 0 too early, the trigger gets freed while still in use and a
use-after-free occurs.
Fix this by getting a reference to the trigger before assigning it to the
IIO device.
Statement: Following issue marked as moderate with "not affected" for Red Hat Enterprise Linux, as it is not vulnerable to this CVE. This is because the CVE does not impact the versions or configurations
Debian
CVE-2021-47500: linux - In the Linux kernel, the following vulnerability has been resolved: iio: mma845...
vendor_debian·2021·CVSS 7.8
CVE-2021-47500 [HIGH] CVE-2021-47500: linux - In the Linux kernel, the following vulnerability has been resolved: iio: mma845...
In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1. Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs. Fix this by getting a reference to the trigger before assigning it to the IIO device.
Scope: local
bookworm: resolved (fixed in 5.15.15-1)
bullseye: resolved (fixed in 5.10.92-1)
forky: resolved (fixed in 5.15.15-1)
sid: resolved (fixed in 5.15.15-1)
trixie: resolved (fixed in 5.15.15-1)
OSV
linux-lts-xenial vulnerabilities
osv·2025-05-13·CVSS 7.8
CVE-2022-23041 [HIGH] linux-lts-xenial vulnerabilities
linux-lts-xenial vulnerabilities
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file system;
- File systems infrastructure;
- JFS file system;
- Network file sys
OSV
linux-fips vulnerabilities
osv·2025-05-12·CVSS 7.8
CVE-2022-23041 [HIGH] linux-fips vulnerabilities
linux-fips vulnerabilities
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file system;
- File systems infrastructure;
- JFS file system;
- Network file system (N
OSV
linux-aws vulnerabilities
osv·2025-05-12·CVSS 7.8
CVE-2022-23041 [HIGH] linux-aws vulnerabilities
linux-aws vulnerabilities
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file system;
- File systems infrastructure;
- JFS file system;
- Network file system (NF
OSV
linux, linux-aws, linux-kvm vulnerabilities
osv·2025-05-12·CVSS 7.8
CVE-2022-23041 [HIGH] linux, linux-aws, linux-kvm vulnerabilities
linux, linux-aws, linux-kvm vulnerabilities
Demi Marie Obenour and Simon Gaiser discovered that several Xen para-
virtualization device frontends did not properly restrict the access rights
of device backends. An attacker could possibly use a malicious Xen backend
to gain access to memory pages of a guest VM or cause a denial of service
in the guest. (CVE-2022-23041)
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:
- Hardware crypto device drivers;
- GPU drivers;
- IIO subsystem;
- Media drivers;
- Network drivers;
- SCSI subsystem;
- SPI subsystem;
- USB Gadget drivers;
- Ceph distributed file system;
- File systems infrastructure;
- JFS file system;
- Netwo
OSV
CVE-2021-47500: In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a
osv·2024-05-24·CVSS 7.8
CVE-2021-47500 [HIGH] CVE-2021-47500: In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a
In the Linux kernel, the following vulnerability has been resolved: iio: mma8452: Fix trigger reference couting The mma8452 driver directly assigns a trigger to the struct iio_dev. The IIO core when done using this trigger will call `iio_trigger_put()` to drop the reference count by 1. Without the matching `iio_trigger_get()` in the driver the reference count can reach 0 too early, the trigger gets freed while still in use and a use-after-free occurs. Fix this by getting a reference to the trigger before assigning it to the IIO device.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071bahttps://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcbhttps://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5ehttps://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96https://git.kernel.org/stable/c/094d513b78b1714113bc016684b8142382e071bahttps://git.kernel.org/stable/c/794c0898f6bf39a458655d5fb4af70ec43a5cfcbhttps://git.kernel.org/stable/c/acf0088ac073ca6e7f4cad6acac112177e08df5ehttps://git.kernel.org/stable/c/c43517071dfc9fce34f8f69dbb98a86017f6b739https://git.kernel.org/stable/c/cd0082235783f814241a1c9483fb89e405f4f892https://git.kernel.org/stable/c/db12d95085367de8b0223929d1332731024441f1https://git.kernel.org/stable/c/f5deab10ced368c807866283f8b79144c4823be8https://git.kernel.org/stable/c/fb75cc4740d81264cd5bcb0e17d961d018a8be96
2024-05-24
Published