CVE-2026-53354arm64: errata: Mitigate TLBI errata on various Arm CPUs
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 925058203229403008d77a52b1e63e2ae5f4a3cf; from 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 8364384ae82fbffdf8968abaac3455ed854da18d; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 builds before 7c3ad9365079e716b57d2363d3081ee7680cc18e; from 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before e717a4d08779f1a28d6e0275e75040b12c33c753; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 builds before 4e7c80742e6dada9f8b9ad63f3a49c03af07ecb8; from 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before d4fd4282204044fdedd1e42abbe70a9206f74ec0; 58d0ba578bc3b7c044d4ef570307bcb03862cb66 builds before 1b47b1e1d8675fdf5f6e11e7fa19c704d8c6f5cd; from 58d0ba578bc3b7c044d4ef570307bcb03862cb66 before 1268c64e2bcb6e968152990e87bd10c440fcc9c0; and 1 more ranges | CNA record |
linux linux_kernel linux:linux_kernel | from 3.7 before 5.10.259; from 5.11 before 5.15.210; from 5.16 before 6.1.176; from 6.2 before 6.6.143; from 6.7 before 6.12.94; from 6.13 before 6.18.36; from 6.19 before 7.0.13; from 7.1 before 7.1.1 | NVD |
References
- https://git.kernel.org/stable/c/925058203229403008d77a52b1e63e2ae5f4a3cfpatch
- https://git.kernel.org/stable/c/8364384ae82fbffdf8968abaac3455ed854da18dpatch
- https://git.kernel.org/stable/c/7c3ad9365079e716b57d2363d3081ee7680cc18epatch
- https://git.kernel.org/stable/c/e717a4d08779f1a28d6e0275e75040b12c33c753patch
- https://git.kernel.org/stable/c/4e7c80742e6dada9f8b9ad63f3a49c03af07ecb8patch
- https://git.kernel.org/stable/c/d4fd4282204044fdedd1e42abbe70a9206f74ec0patch
- https://git.kernel.org/stable/c/1b47b1e1d8675fdf5f6e11e7fa19c704d8c6f5cdpatch
- https://git.kernel.org/stable/c/1268c64e2bcb6e968152990e87bd10c440fcc9c0patch
- https://git.kernel.org/stable/c/cfd391e74134db664feb499d43af286380b10ba8patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.