CVE-2026-53354 is a vulnerability in Linux Kernel
Published on July 1, 2026
arm64: errata: Mitigate TLBI errata on various Arm CPUs
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.
Products Associated with CVE-2026-53354
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 925058203229403008d77a52b1e63e2ae5f4a3cf is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 8364384ae82fbffdf8968abaac3455ed854da18d is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 7c3ad9365079e716b57d2363d3081ee7680cc18e is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below e717a4d08779f1a28d6e0275e75040b12c33c753 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 4e7c80742e6dada9f8b9ad63f3a49c03af07ecb8 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below d4fd4282204044fdedd1e42abbe70a9206f74ec0 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 1b47b1e1d8675fdf5f6e11e7fa19c704d8c6f5cd is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 1268c64e2bcb6e968152990e87bd10c440fcc9c0 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below cfd391e74134db664feb499d43af286380b10ba8 is affected.
- Before 5.10.259 is affected.
- Before 5.15.210 is affected.
- Before 6.1.176 is affected.
- Before 6.6.143 is affected.
- Before 6.12.94 is affected.
- Before 6.18.36 is affected.
- Before 7.0.13 is affected.
- Before 7.1.1 is affected.
- Version 5.10.259, <= 5.10.* is unaffected.
- Version 5.15.210, <= 5.15.* is unaffected.
- Version 6.1.176, <= 6.1.* is unaffected.
- Version 6.6.143, <= 6.6.* is unaffected.
- Version 6.12.94, <= 6.12.* is unaffected.
- Version 6.18.36, <= 6.18.* is unaffected.
- Version 7.0.13, <= 7.0.* is unaffected.
- Version 7.1.1, <= 7.1.* is unaffected.
- Version 7.2-rc1, <= * is unaffected.