High severity · published Jul 1, 2026
CVE-2026-53354
arm64: errata: Mitigate TLBI errata on various Arm CPUs
8.8
CVSS
0.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved: arm64: errata: Mitigate TLBI errata on various Arm CPUs A number of CPUs developed by Arm suffer from errata whereby a broadcast TLBI;DSB sequence may complete before the global observation of writes which are translated by an affected TLB entry. These errata ONLY affect the completion of memory accesses which have been translated by an invalidated TLB entry, and these errata DO NOT affect the actual invalidation of TLB entries. TLB entries are removed correctly. This issue has been assigned CVE ID CVE-2025-10263. To mitigate this issue, Arm recommends that software follows any affected TLBI;DSB sequence with an additional TLBI;DSB, which will ensure that all memory write effects affected by the first TLBI have been globally observed. The additional TLBI can use any operation that is broadcast to affected CPUs, and the additional DSB can use any option that is sufficient to complete the additional TLBI. The ARM64_WORKAROUND_REPEAT_TLBI workaround is sufficient to mitigate the issue. Enable this workaround for affected CPUs, and update the silicon errata documentation accordingly. Note that due to the manner in which Arm develops IP and tracks errata, some CPUs share a common erratum number.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.7 before 5.10.259; 5.11 before 5.15.210; 5.16 before 6.1.176; 6.2 before 6.6.143; 6.7 before 6.12.94; 6.13 before 6.18.36; +2 more · source: NVD
LI
Linux · Linux
58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 925058203229403008d77a52b1e63e2ae5f4a3cf; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 8364384ae82fbffdf8968abaac3455ed854da18d; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 7c3ad9365079e716b57d2363d3081ee7680cc18e; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before e717a4d08779f1a28d6e0275e75040b12c33c753; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 4e7c80742e6dada9f8b9ad63f3a49c03af07ecb8; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before d4fd4282204044fdedd1e42abbe70a9206f74ec0; +4 more · source: vendor