CVE-2026-64313
published 2026-07-25CVE-2026-64313: In the Linux kernel, the following vulnerability has been resolved: crypto: ecc - Fix carry overflow in vli multiplication The carry flag calculation fails…
PriorityP347high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
EPSS
0.35%
27.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
crypto: ecc - Fix carry overflow in vli multiplication
The carry flag calculation fails when r01.m_high is saturated
(0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows.
The condition (r01.m_high < product.m_high) doesn't handle the case
where r01.m_high == product.m_high and an additional carry exists
from lower-bit overflow.
When commit 3c4b23901a0c ("crypto: ecdh - Add ECDH software support")
introduced crypto/ecc.c, it split the muladd() function in the
micro-ecc library into separate mul_64_64() and add_128_128() helpers.
It seems the check got lost in translation.
Add proper handling for this boundary by accounting for the carry
from the lower addition.
Affected
56 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < d11b2bb99bec1f5557c01cac42231e23745f49b8 | d11b2bb99bec1f5557c01cac42231e23745f49b8 |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < b709e0e768766abe29a49e1c1922a1604be602f4 | b709e0e768766abe29a49e1c1922a1604be602f4 |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 24a54dfa06d09813b4802a374fad3d2c0e16a884 | 24a54dfa06d09813b4802a374fad3d2c0e16a884 |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 677450e5ef850c4d28b7956aa01104548c2a894e | 677450e5ef850c4d28b7956aa01104548c2a894e |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 5275e0fca256d081e2e7d4ba3dd8216c6e50d44e | 5275e0fca256d081e2e7d4ba3dd8216c6e50d44e |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 774ddddf5eb26eeca177350413e3e2bc50930ee9 | 774ddddf5eb26eeca177350413e3e2bc50930ee9 |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < ebaae7c4251cc0cdb2602f334d4f08a3e82d271e | ebaae7c4251cc0cdb2602f334d4f08a3e82d271e |
| linux | linux | >= 3c4b23901a0c766879dff680cd6bdab47bcdbbd2 < 27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406 | 27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 4.8 < 5.10.261 | 5.10.261 |
| linux | linux_kernel | >= 5.11 < 5.15.212 | 5.15.212 |
| linux | linux_kernel | >= 5.16 < 6.1.178 | 6.1.178 |
| linux | linux_kernel | >= 6.13 < 6.18.39 | 6.18.39 |
| linux | linux_kernel | >= 6.19 < 7.1.4 | 7.1.4 |
| linux | linux_kernel | >= 6.2 < 6.6.145 | 6.6.145 |
| linux | linux_kernel | >= 6.7 < 6.12.96 | 6.12.96 |
| ubuntu | linux | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-aws-5.15 | — | — |
| ubuntu | linux-aws-7.0 | — | — |
| ubuntu | linux-aws-fips | — | — |
| ubuntu | linux-azure | — | — |
| ubuntu | linux-azure-5.15 | — | — |
| ubuntu | linux-azure-7.0 | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_ubuntu9.1CRITICAL
vendor_redhat8.8HIGH
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this to cause a denial of service (system crash). (CVE-2022-3114)
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:
- ARM32 architecture;
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ACPI driv
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It was discovered that the i.MX clock driver in the Linux kernel did not
properly handle certain memory allocation failure conditions, leading to a
null pointer dereference vulnerability. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2022-3114)
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:
- User-space API (UAPI);
- ARM32 architecture;
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptograph
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properly handle certain memory allocation failure conditions, leading to a
null pointer dereference vulnerability. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2022-3114)
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
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Several security
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Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the i.MX clock driver in the Linux kernel did not
properly handle certain memory allocation failure conditions, leading to a
null pointer dereference vulnerability. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2022-3114)
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
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Several security is
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CVE-2026-68461 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the i.MX clock driver in the Linux kernel did not
properly handle certain memory allocation failure conditions, leading to a
null pointer dereference vulnerability. A local attacker could possibly use
this to cause a denial of service (system crash). (CVE-2022-3114)
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:
- User-space API (UAPI);
- ARM32 architecture;
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API
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CVE-2026-64191 [CRITICAL] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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shared resources in the operation cache. A local attacker could possibly
use this issue to corrupt instructions executed at a higher privilege
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Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- RISC-V architecture;
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Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
It was discovered that some AMD Zen 2 processors did not properly isolate
shared resources in the operation cache. A local attacker could possibly
use this issue to corrupt instructions executed at a higher privilege
level, resulting in privilege escalation. (CVE-2025-54518)
Several security issues were di
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Summary: Several security issues were fixed in the Linux kernel.
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- ARM64 architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- Intel NPU Driver;
- ACPI drivers;
- Android drivers;
- Drivers core;
- Compressed RAM block device driver;
- Bluetooth drivers;
- Character device driver;
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Title: Linux kernel (IBM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- RISC-V architecture;
- S390 architec
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Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- PowerPC architecture;
- RIS
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Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- RISC-V architecture;
- S390
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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:
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- ARM64 architecture;
- RISC-V architecture;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- Intel NPU Driver;
- ACPI drivers;
- Android drivers;
- Drivers core;
- Compressed RAM block device driver;
- Bluetooth drivers;
- Character device driver;
- Hardware random number generator core;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
- Buf
Ubuntu
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vendor_ubuntu·2026-09-07·CVSS 9.1
CVE-2026-52938 [CRITICAL] Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
It was discovered that some AMD Zen 2 processors did not properly isolate
shared resources in the operation cache. A local attacker could possibly
use this issue to corrupt instructions executed at a higher privilege
level, resulting in privilege escalation. (CVE-2025-54518)
Several security issues were disc
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-09-07·CVSS 9.1
CVE-2026-64504 [CRITICAL] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- RISC-V architecture;
- S390 architecture;
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2026-09-07·CVSS 9.1
CVE-2026-63869 [CRITICAL] Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that some Arm processors could complete a broadcast
translation lookaside buffer (TLB) invalidation before memory writes made
through the invalidated translation were globally observed. A local
attacker could possibly use this to write to memory after permission to do
so had been revoked, bypassing memory protections or escalating privileges.
(CVE-2025-10263)
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;
- User-space API (UAPI);
- Kernel build system;
- ARM32 architecture;
- RISC-V architecture;
- S390 architec
Red Hat
kernel: crypto: ecc - Fix carry overflow in vli multiplication
vendor_redhat·2026-07-25·CVSS 8.8
CVE-2026-64313 [HIGH] CWE-190 kernel: crypto: ecc - Fix carry overflow in vli multiplication
kernel: crypto: ecc - Fix carry overflow in vli multiplication
A flaw was found in the Linux kernel's Elliptic Curve Cryptography (ECC) component. An attacker on an adjacent network could exploit an error in the very long integer (vli) multiplication's carry flag calculation. This mathematical inaccuracy in cryptographic operations could lead to high impact on confidentiality, integrity, and availability.
Package: kernel (Red Hat Enterprise Linux 10) - Fix deferred
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) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 8) - Fix deferred
Package: kernel
VulDB
Linux Kernel up to 7.1.3 ECC crypto/ecc.c mul_64_64 integer overflow (Nessus ID 329907)
vuldb·2026-07-27
CVE-2026-64313 Linux Kernel up to 7.1.3 ECC crypto/ecc.c mul_64_64 integer overflow (Nessus ID 329907)
A vulnerability was found in Linux Kernel up to 7.1.3. It has been declared as very critical. Impacted is the function mul_64_64 of the file crypto/ecc.c of the component ECC. Such manipulation leads to integer overflow.
This vulnerability is uniquely identified as CVE-2026-64313. The attack can be launched remotely. No exploit exists.
It is recommended to upgrade the affected component.
GHSA
In the Linux kernel, the following vulnerability has been resolved: crypto: ecc - Fix carry overflow in vli multiplication The carry flag calculation fails when r01.m_high is saturated (0xFFFFFFFFFF
ghsa_unreviewed·2026-07-25
CVE-2026-64313 In the Linux kernel, the following vulnerability has been resolved: crypto: ecc - Fix carry overflow in vli multiplication The carry flag calculation fails when r01.m_high is saturated (0xFFFFFFFFFF
In the Linux kernel, the following vulnerability has been resolved:
crypto: ecc - Fix carry overflow in vli multiplication
The carry flag calculation fails when r01.m_high is saturated
(0xFFFFFFFFFFFFFFFF) and addition of lower bits overflows.
The condition (r01.m_high < product.m_high) doesn't handle the case
where r01.m_high == product.m_high and an additional carry exists
from lower-bit overflow.
When commit 3c4b23901a0c ("crypto: ecdh - Add ECDH software support")
introduced crypto/ecc.c, it split the muladd() function in the
micro-ecc library into separate mul_64_64() and add_128_128() helpers.
It seems the check got lost in translation.
Add proper handling for this boundary by accounting for the carry
from the lower addition.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/24a54dfa06d09813b4802a374fad3d2c0e16a884https://git.kernel.org/stable/c/27b536a2ec8e2f85a0380c2d13c9ecbc7aaab406https://git.kernel.org/stable/c/5275e0fca256d081e2e7d4ba3dd8216c6e50d44ehttps://git.kernel.org/stable/c/677450e5ef850c4d28b7956aa01104548c2a894ehttps://git.kernel.org/stable/c/774ddddf5eb26eeca177350413e3e2bc50930ee9https://git.kernel.org/stable/c/b709e0e768766abe29a49e1c1922a1604be602f4https://git.kernel.org/stable/c/d11b2bb99bec1f5557c01cac42231e23745f49b8https://git.kernel.org/stable/c/ebaae7c4251cc0cdb2602f334d4f08a3e82d271e
2026-07-25
Published