CVE-2025-39873
published 2025-09-23CVE-2025-39873: In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
4.5th percentile
In the Linux kernel, the following vulnerability has been resolved:
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can_put_echo_skb() takes ownership of the SKB and it may be freed
during or after the call.
However, xilinx_can xcan_write_frame() keeps using SKB after the call.
Fix that by only calling can_put_echo_skb() after the code is done
touching the SKB.
The tx_lock is held for the entire xcan_write_frame() execution and
also on the can_get_echo_skb() side so the order of operations does not
matter.
An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb
memory") did not move the can_put_echo_skb() call far enough.
[mkl: add "commit" in front of sha1 in patch description]
[mkl: fix indention]
Affected
31 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | linux | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.153-1 (bookworm) | linux 6.1.153-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < e202ffd9e54538ef67ec301ebd6d9da4823466c9 | e202ffd9e54538ef67ec301ebd6d9da4823466c9 |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < 1139321161a3ba5e45e61e0738b37f42f20bc57a | 1139321161a3ba5e45e61e0738b37f42f20bc57a |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < 94b050726288a56a6b8ff55aa641f2fedbd3b44c | 94b050726288a56a6b8ff55aa641f2fedbd3b44c |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < 725b33deebd6e4c96fe7893f384510a54258f28f | 725b33deebd6e4c96fe7893f384510a54258f28f |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < 668cc1e3bb21101d074e430de1b7ba8fd10189e7 | 668cc1e3bb21101d074e430de1b7ba8fd10189e7 |
| linux | linux | >= 1598efe57b3e768056e4ca56cb9cf33111e68d1c < ef79f00be72bd81d2e1e6f060d83cf7e425deee4 | ef79f00be72bd81d2e1e6f060d83cf7e425deee4 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.153-1 | 6.1.153-1 |
| linux | linux_kernel | >= 0 < 6.12.48-1 | 6.12.48-1 |
| linux | linux_kernel | >= 0 < 6.16.8-1 | 6.16.8-1 |
| linux | linux_kernel | >= 0 < 5.15.0-170.180 | 5.15.0-170.180 |
| linux | linux_kernel | >= 0 < 6.8.0-106.106 | 6.8.0-106.106 |
| linux | linux_kernel | >= 4.19 < 5.15.194 | 5.15.194 |
| linux | linux_kernel | >= 5.16 < 6.1.153 | 6.1.153 |
| linux | linux_kernel | >= 6.13 < 6.16.8 | 6.16.8 |
| linux | linux_kernel | >= 6.2 < 6.6.107 | 6.6.107 |
| linux | linux_kernel | >= 6.7 < 6.12.48 | 6.12.48 |
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_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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Ubuntu
Linux kernel (Xilinx) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68288 [MEDIUM] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation,
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 7.8
CVE-2025-22058 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-04-13·CVSS 7.8
CVE-2024-53114 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-21833 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-71125 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01·CVSS 7.8
CVE-2025-38129 [HIGH] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269)
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:
- Nios II architecture;
- PowerPC architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01
CVE-2025-40301 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architect
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25·CVSS 3.2
CVE-2025-40068 [LOW] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
It was discovered that improper initialization of CPU cache memory could
allow a local attacker with hypervisor access to overwrite SEV-SNP guest
memory resulting in loss of data integrity. (CVE-2024-36331)
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,
and Flavien Solt discovered that
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25
CVE-2025-40245 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-03-23
CVE-2025-40068 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Su
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2026-03-17
CVE-2025-40245 Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40068 Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- S
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40245 Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-39981 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Spar
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40153 [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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
-
Ubuntu
Linux kernel (NVIDIA Tegra IGX) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Title: Linux kernel (NVIDIA Tegra IGX) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device d
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-02-13·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Net
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drive
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Ne
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Red Hat
kernel: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
vendor_redhat·2025-09-23·CVSS 7.8
CVE-2025-39873 [HIGH] kernel: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
kernel: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
In the Linux kernel, the following vulnerability has been resolved:
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can_put_echo_skb() takes ownership of the SKB and it may be freed
during or after the call.
However, xilinx_can xcan_write_frame() keeps using SKB after the call.
Fix that by only calling can_put_echo_skb() after the code is done
touching the SKB.
The tx_lock is held for the entire xcan_write_frame() execution and
also on the can_get_echo_skb() side so the order of operations does not
matter.
An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb
memory") did not move the can_put_echo_skb() call far enough.
[mkl: add "commit" in front of sha1 in patch
Microsoft
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
vendor_msrc·2025-09-09·CVSS 7.8
CVE-2025-39873 [HIGH] can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
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
Refer
Debian
CVE-2025-39873: linux - In the Linux kernel, the following vulnerability has been resolved: can: xilinx...
vendor_debian·2025·CVSS 7.8
CVE-2025-39873 [HIGH] CVE-2025-39873: linux - In the Linux kernel, the following vulnerability has been resolved: can: xilinx...
In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can_put_echo_skb() takes ownership of the SKB and it may be freed during or after the call. However, xilinx_can xcan_write_frame() keeps using SKB after the call. Fix that by only calling can_put_echo_skb() after the code is done touching the SKB. The tx_lock is held for the entire xcan_write_frame() execution and also on the can_get_echo_skb() side so the order of operations does not matter. An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb memory") did not move the can_put_echo_skb() call far enough. [mkl: add "commit" in front of sha1 in patch description] [mkl: fix indention]
Scope: local
bookworm: resolved (fixed in 6.1.153
OSV
linux-raspi vulnerabilities
osv·2026-04-01·CVSS 7.8
CVE-2026-23268 [HIGH] linux-raspi vulnerabilities
linux-raspi vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269)
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:
- Nios II architecture;
- PowerPC architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM
OSV
linux-raspi, linux-raspi-realtime vulnerabilities
osv·2026-04-01
linux-raspi, linux-raspi-realtime vulnerabilities
linux-raspi, linux-raspi-realtime vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 archi
OSV
linux-azure-6.8 vulnerabilities
osv·2026-03-25·CVSS 3.2
[LOW] linux-azure-6.8 vulnerabilities
linux-azure-6.8 vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
It was discovered that improper initialization of CPU cache memory could
allow a local attacker with hypervisor access to overwrite SEV-SNP guest
memory resulting in loss of data integrity. (CVE-2024-36331)
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,
and Flavien Solt discovered that some AMD processors may allow an attacker
to infer data from previous stores,
OSV
linux-azure vulnerabilities
osv·2026-03-25
linux-azure vulnerabilities
linux-azure vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Xtensa arch
OSV
linux-aws-6.8 vulnerabilities
osv·2026-03-23
linux-aws-6.8 vulnerabilities
linux-aws-6.8 vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Xtensa ar
OSV
linux-realtime, linux-realtime-6.8 vulnerabilities
osv·2026-03-17
linux-realtime, linux-realtime-6.8 vulnerabilities
linux-realtime, linux-realtime-6.8 vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 arch
OSV
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
osv·2026-03-16
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Li
OSV
linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities
osv·2026-03-16
linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities
linux-fips, linux-aws-fips, linux-gcp-fips vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
-
OSV
linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
osv·2026-03-16
linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
linux, linux-aws, linux-gcp, linux-gcp-6.8, linux-gke, linux-gkeop, linux-hwe-6.8, linux-ibm, linux-ibm-6.8, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oracle, linux-oracle-6.8 vulnerabilities
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- Ni
OSV
linux-intel-iotg-5.15, linux-xilinx-zynqmp vulnerabilities
osv·2026-02-19·CVSS 5.5
[MEDIUM] linux-intel-iotg-5.15, linux-xilinx-zynqmp vulnerabilities
linux-intel-iotg-5.15, linux-xilinx-zynqmp 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
-
OSV
linux-intel-iotg vulnerabilities
osv·2026-02-19·CVSS 5.5
[MEDIUM] linux-intel-iotg vulnerabilities
linux-intel-iotg 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Performance monitor driver
OSV
linux-nvidia vulnerabilities
osv·2026-02-17·CVSS 5.5
[MEDIUM] linux-nvidia vulnerabilities
linux-nvidia 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Performance monitor drivers;
-
OSV
linux-nvidia-tegra-igx vulnerabilities
osv·2026-02-17·CVSS 5.5
[MEDIUM] linux-nvidia-tegra-igx vulnerabilities
linux-nvidia-tegra-igx 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Performance monitor
OSV
linux-gcp-5.15, linux-kvm, linux-oracle, linux-oracle-5.15 vulnerabilities
osv·2026-02-17·CVSS 5.5
[MEDIUM] linux-gcp-5.15, linux-kvm, linux-oracle, linux-oracle-5.15 vulnerabilities
linux-gcp-5.15, linux-kvm, linux-oracle, linux-oracle-5.15 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- P
OSV
linux-aws-5.15 vulnerabilities
osv·2026-02-13·CVSS 5.5
[MEDIUM] linux-aws-5.15 vulnerabilities
linux-aws-5.15 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Performance monitor drivers;
OSV
linux-intel-iot-realtime, linux-realtime vulnerabilities
osv·2026-02-12·CVSS 5.5
[MEDIUM] linux-intel-iot-realtime, linux-realtime vulnerabilities
linux-intel-iot-realtime, 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Pe
OSV
linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
osv·2026-02-12·CVSS 5.5
[MEDIUM] linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
linux-aws-fips, linux-fips, linux-gcp-fips 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
-
OSV
linux-nvidia-tegra, linux-nvidia-tegra-5.15 vulnerabilities
osv·2026-02-12·CVSS 5.5
[MEDIUM] linux-nvidia-tegra, linux-nvidia-tegra-5.15 vulnerabilities
linux-nvidia-tegra, linux-nvidia-tegra-5.15 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
-
OSV
linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15 vulnerabilities
osv·2026-02-12·CVSS 5.5
[MEDIUM] linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15 vulnerabilities
linux, linux-aws, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15 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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Trans
OSV
CVE-2025-39873: In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can_put
osv·2025-09-23·CVSS 7.8
CVE-2025-39873 [HIGH] CVE-2025-39873: In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can_put
In the Linux kernel, the following vulnerability has been resolved: can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB can_put_echo_skb() takes ownership of the SKB and it may be freed during or after the call. However, xilinx_can xcan_write_frame() keeps using SKB after the call. Fix that by only calling can_put_echo_skb() after the code is done touching the SKB. The tx_lock is held for the entire xcan_write_frame() execution and also on the can_get_echo_skb() side so the order of operations does not matter. An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb memory") did not move the can_put_echo_skb() call far enough. [mkl: add "commit" in front of sha1 in patch description] [mkl: fix indention]
GHSA
GHSA-9mp7-jx47-xv3h: In the Linux kernel, the following vulnerability has been resolved:
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can_p
ghsa_unreviewed·2025-09-23
CVE-2025-39873 [HIGH] CWE-416 GHSA-9mp7-jx47-xv3h: In the Linux kernel, the following vulnerability has been resolved:
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can_p
In the Linux kernel, the following vulnerability has been resolved:
can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
can_put_echo_skb() takes ownership of the SKB and it may be freed
during or after the call.
However, xilinx_can xcan_write_frame() keeps using SKB after the call.
Fix that by only calling can_put_echo_skb() after the code is done
touching the SKB.
The tx_lock is held for the entire xcan_write_frame() execution and
also on the can_get_echo_skb() side so the order of operations does not
matter.
An earlier fix commit 3d3c817c3a40 ("can: xilinx_can: Fix usage of skb
memory") did not move the can_put_echo_skb() call far enough.
[mkl: add "commit" in front of sha1 in patch description]
[mkl: fix indention]
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1139321161a3ba5e45e61e0738b37f42f20bc57ahttps://git.kernel.org/stable/c/668cc1e3bb21101d074e430de1b7ba8fd10189e7https://git.kernel.org/stable/c/725b33deebd6e4c96fe7893f384510a54258f28fhttps://git.kernel.org/stable/c/94b050726288a56a6b8ff55aa641f2fedbd3b44chttps://git.kernel.org/stable/c/e202ffd9e54538ef67ec301ebd6d9da4823466c9https://git.kernel.org/stable/c/ef79f00be72bd81d2e1e6f060d83cf7e425deee4https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
2025-09-23
Published