CVE-2026-43291
published 2026-05-08CVE-2026-43291: In the Linux kernel, the following vulnerability has been resolved: net: nfc: nci: Fix parameter validation for packet data Since commit 9c328f54741b ("net…
PriorityP343high8.3CVSS 3.1
AVAACLPRNUINSUCHILAH
EPSS
0.27%
18.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Fix parameter validation for packet data
Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for
packet data") communication with nci nfc chips is not working any more.
The mentioned commit tries to fix access of uninitialized data, but
failed to understand that in some cases the data packet is of variable
length and can therefore not be compared to the maximum packet length
given by the sizeof(struct).
Affected
47 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 0ba68bea1e356f466ad29449938bea12f5f3711f < ad058a4317db7fdb3f09caa6ed536d24a62ce6a0 | ad058a4317db7fdb3f09caa6ed536d24a62ce6a0 |
| linux | linux | >= 5.15.195 < 5.15.202 | 5.15.202 |
| linux | linux | >= 6.1.156 < 6.1.165 | 6.1.165 |
| linux | linux | >= 6.12.53 < 6.12.75 | 6.12.75 |
| linux | linux | >= 6.17.3 < 6.18 | 6.18 |
| linux | linux | >= 6.6.112 < 6.6.128 | 6.6.128 |
| linux | linux | >= 74837bca0748763a77f77db47a0bdbe63b347628 < 3b91160e9a91b5a2662875417dc42dc5b0bf03ea | 3b91160e9a91b5a2662875417dc42dc5b0bf03ea |
| linux | linux | >= 8fcc7315a10a84264e55bb65ede10f0af20a983f < a24a8a582da4426b2042e510a1080df84083b51d | a24a8a582da4426b2042e510a1080df84083b51d |
| linux | linux | >= 9c328f54741bd5465ca1dc717c84c04242fac2e1 < c692db813a7e3b7c3c17d6e9a3ad2a018bf1142b | c692db813a7e3b7c3c17d6e9a3ad2a018bf1142b |
| linux | linux | >= 9c328f54741bd5465ca1dc717c84c04242fac2e1 < 498fc5d0d650c77e87fcc73808d4f43240c21805 | 498fc5d0d650c77e87fcc73808d4f43240c21805 |
| linux | linux | >= 9c328f54741bd5465ca1dc717c84c04242fac2e1 < 571dcbeb8e635182bb825ae758399831805693c2 | 571dcbeb8e635182bb825ae758399831805693c2 |
| linux | linux | >= bfdda0123dde406dbff62e7e9136037e97998a15 < f5218426f765eee22e178df9c126d974792fb6a5 | f5218426f765eee22e178df9c126d974792fb6a5 |
| linux | linux_kernel | >= 5.15.195 < 5.15.202 | 5.15.202 |
| linux | linux_kernel | >= 6.1.156 < 6.1.165 | 6.1.165 |
| linux | linux_kernel | >= 6.12.53 < 6.12.75 | 6.12.75 |
| linux | linux_kernel | >= 6.17.3 < 6.18 | 6.18 |
| linux | linux_kernel | >= 6.18 < 6.18.16 | 6.18.16 |
| linux | linux_kernel | >= 6.19 < 6.19.6 | 6.19.6 |
| linux | linux_kernel | >= 6.6.112 < 6.6.128 | 6.6.128 |
| ubuntu | linux | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-6.8 | — | — |
| ubuntu | linux-aws-fips | — | — |
CVSS provenance
nvdv3.18.3HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H
vendor_ubuntu8.8HIGH
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Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-07-10
CVE-2025-71235 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monito
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-07-09
CVE-2026-45960 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) 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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardwar
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities
vendor_ubuntu·2026-07-06
CVE-2026-43314 Linux kernel (Raspberry Pi Real-time) vulnerabilities
Title: Linux kernel (Raspberry Pi Real-time) 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;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-07-02
CVE-2026-43314 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring dr
Ubuntu
Linux kernel (Low Latency) vulnerabilities
vendor_ubuntu·2026-07-02·CVSS 8.8
CVE-2026-43314 [HIGH] Linux kernel (Low Latency) vulnerabilities
Title: Linux kernel (Low Latency) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP
subsystem in the Linux kernel when handling socket buffer fragments. This
flaw is known as Fragnesia. A local attacker could use this to escalate
privileges, or possibly escape a conta
Ubuntu
Linux kernel (Xilinx) vulnerabilities
vendor_ubuntu·2026-07-02·CVSS 7.8
CVE-2026-43314 [HIGH] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel algif_aead module did not properly
handle in-place cryptographic operations. This flaw is known as Copy Fail.
A local attacker could use this to escalate privileges, or possibly escape
a container. (CVE-2026-31431)
It was discovered that the Linux kernel did not properly handle shared page
fragments during socket buffer operations, collectively known as Dirty
Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the
RxRPC networking subsystem when processing paged fragments. A local
attacker could use this to escalate privileges, or possibly escape a
container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998, CVE-2026-46000)
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-07-02
CVE-2026-43314 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardwar
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-07-01
CVE-2026-43226 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI drivers;
- ATM drivers;
- RNBD block device driver;
- Ublk userspace block driver;
- Bus devices;
- Character device driver;
- TPM device driver;
- Clock framework and drivers;
- Clocksource drivers;
- CPU idle management framework;
- Hardware crypto device drivers;
- DMA engine subsystem;
- EFI core;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring dr
Red Hat
kernel: net: nfc: nci: Fix parameter validation for packet data
vendor_redhat·2026-05-08
CVE-2026-43291 CWE-130 kernel: net: nfc: nci: Fix parameter validation for packet data
kernel: net: nfc: nci: Fix parameter validation for packet data
A flaw was found in the Linux kernel's Near Field Communication (NFC) NCI subsystem. Incorrect parameter validation for variable-length packet data can lead to communication failures with NCI NFC chips. This issue, stemming from an attempt to prevent access to uninitialized data, results in a Denial of Service (DoS) where NFC communication ceases to function.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
VulDB
Linux Kernel up to 6.19.5 net uninitialized pointer
vuldb·2026-05-18·CVSS 8.3
CVE-2026-43291 [HIGH] Linux Kernel up to 6.19.5 net uninitialized pointer
A vulnerability was found in Linux Kernel up to 6.19.5 and classified as critical. This issue affects some unknown processing of the component net. The manipulation results in uninitialized pointer.
This vulnerability was named CVE-2026-43291. The attack needs to be approached within the local network. There is no available exploit.
It is suggested to upgrade the affected component.
GHSA
GHSA-r3q8-xm3r-6v78: In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Fix parameter validation for packet data
Since commit 9c328f54741
ghsa_unreviewed·2026-05-08
CVE-2026-43291 GHSA-r3q8-xm3r-6v78: In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Fix parameter validation for packet data
Since commit 9c328f54741
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: nci: Fix parameter validation for packet data
Since commit 9c328f54741b ("net: nfc: nci: Add parameter validation for
packet data") communication with nci nfc chips is not working any more.
The mentioned commit tries to fix access of uninitialized data, but
failed to understand that in some cases the data packet is of variable
length and can therefore not be compared to the maximum packet length
given by the sizeof(struct).
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/3b91160e9a91b5a2662875417dc42dc5b0bf03eahttps://git.kernel.org/stable/c/498fc5d0d650c77e87fcc73808d4f43240c21805https://git.kernel.org/stable/c/571dcbeb8e635182bb825ae758399831805693c2https://git.kernel.org/stable/c/a24a8a582da4426b2042e510a1080df84083b51dhttps://git.kernel.org/stable/c/ad058a4317db7fdb3f09caa6ed536d24a62ce6a0https://git.kernel.org/stable/c/c692db813a7e3b7c3c17d6e9a3ad2a018bf1142bhttps://git.kernel.org/stable/c/f5218426f765eee22e178df9c126d974792fb6a5
2026-05-08
Published