CVE-2026-31633
published 2026-04-24CVE-2026-31633: In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix integer overflow in rxgk_verify_response() In rxgk_verify_response(), there's a…
PriorityP351critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.47%
39.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix integer overflow in rxgk_verify_response()
In rxgk_verify_response(), there's a potential integer overflow due to
rounding up token_len before checking it, thereby allowing the length check to
be bypassed.
Fix this by checking the unrounded value against len too (len is limited as
the response must fit in a single UDP packet).
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < 1f864d9daaf622aeaa774404fd51e7d6a435b046 | 1f864d9daaf622aeaa774404fd51e7d6a435b046 |
| linux | linux | >= 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < c1e242beb6b1efc3c286f617e8d940c8fbf2ed41 | c1e242beb6b1efc3c286f617e8d940c8fbf2ed41 |
| linux | linux | >= 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a < 699e52180f4231c257821c037ed5c99d5eb0edb8 | 699e52180f4231c257821c037ed5c99d5eb0edb8 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 6.16.1 < 6.18.23 | 6.18.23 |
| linux | linux_kernel | >= 6.19 < 6.19.13 | 6.19.13 |
| ubuntu | linux-azure-6.17 | — | — |
| ubuntu | linux-gcp-6.17 | — | — |
| ubuntu | linux-hwe-6.17 | — | — |
| ubuntu | linux-nvidia-6.17 | — | — |
| ubuntu | linux-oem-6.17 | — | — |
| ubuntu | linux-oracle-6.17 | — | — |
| ubuntu | linux-realtime-6.17 | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_ubuntu9.8CRITICAL
vendor_redhat7.0MEDIUM
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Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-08-21
CVE-2026-23014 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:
- Foo-over-UDP (FOU);
- ARM64 architecture;
- x86 architecture;
- Block layer subsystem;
- Drivers core;
- Null block device driver;
- Bluetooth drivers;
- Counter interface drivers;
- DMA engine subsystem;
- DPLL subsystem;
- GPIO subsystem;
- GPU drivers;
- I2C subsystem;
- IIO ADC drivers;
- IIO subsystem;
- InfiniBand drivers;
- On-Chip Interconnect management framework;
- IOMMU subsystem;
- IRQ chip drivers;
- Modular ISDN driver;
- LED subsystem;
- Multiple devices driver;
- Media drivers;
- UACCE
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2026-08-18·CVSS 9.8
CVE-2026-52924 [CRITICAL] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) 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:
- x86 architecture;
- InfiniBand drivers;
- Media drivers;
- Network drivers;
- Mellanox network drivers;
- Texas Instruments network drivers;
- NVME drivers;
- File systems infrastructure;
- SMB network file system;
- IPv4 networking;
- Network traffic control;
- TCP network protocol;
- Locking primitives;
- Memory management;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- RxRPC session sockets;
- SCTP protocol;
- SMC sockets;
(CVE-2026-31405, CVE-2026-31414, CVE-2026-31501, CVE-2026-31589,
CVE-202
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-08-12·CVSS 9.8
CVE-2026-31589 [CRITICAL] 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:
- x86 architecture;
- InfiniBand drivers;
- Media drivers;
- Network drivers;
- Mellanox network drivers;
- Texas Instruments network drivers;
- NVME drivers;
- File systems infrastructure;
- SMB network file system;
- IPv4 networking;
- Network traffic control;
- TCP network protocol;
- Locking primitives;
- Memory management;
- IPv6 networking;
- Multipath TCP;
- Netfilter;
- RxRPC session sockets;
- SCTP protocol;
- SMC sockets;
(CVE-2026-31405, CVE-2026-31414, CVE-2026-31501, CVE-2026-31589,
CVE-2026-31633,
Red Hat
kernel: rxrpc: Fix integer overflow in rxgk_verify_response()
vendor_redhat·2026-04-24·CVSS 7.0
CVE-2026-31633 [MEDIUM] CWE-190 kernel: rxrpc: Fix integer overflow in rxgk_verify_response()
kernel: rxrpc: Fix integer overflow in rxgk_verify_response()
A flaw was found in the Linux kernel's rxrpc component. A potential integer overflow vulnerability exists in the `rxgk_verify_response()` function. This occurs when the `token_len` value is rounded up before a critical length check, allowing the check to be bypassed. This could potentially lead to unexpected behavior or resource exhaustion, as the response is intended to fit within a single User Datagram Protocol (UDP) packet.
Package: kernel (Red Hat Enterprise Linux 10) - 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
GHSA
GHSA-5j64-84jf-59q3: In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix integer overflow in rxgk_verify_response()
In rxgk_verify_response(),
ghsa_unreviewed·2026-04-24
CVE-2026-31633 GHSA-5j64-84jf-59q3: In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix integer overflow in rxgk_verify_response()
In rxgk_verify_response(),
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix integer overflow in rxgk_verify_response()
In rxgk_verify_response(), there's a potential integer overflow due to
rounding up token_len before checking it, thereby allowing the length check to
be bypassed.
Fix this by checking the unrounded value against len too (len is limited as
the response must fit in a single UDP packet).
No detection rules found.
No public exploits indexed.
2026-04-24
Published