CVE-2026-64157

linux: In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-wri...

CVE-2026-64157 is fixed in 51 products on 1 platform, first by ALAS2023-2026-1894, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
5th percentile

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-write folio In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region. Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend).

Where it's fixed

ProductFixed inFixReleased
Linux
bpftool6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
bpftool6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
bpftool6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
bpftool6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-64kb · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-azure · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-azure · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-default · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23237-1 Aug 11, 2026
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.37.1.160000.2.19 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-default-base · sles 16.0 6.12.0-160000.37.1.160000.2.19 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-docs · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-docs · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-kvmsmall · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-livepatch-6.12.92-122.166 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel-livepatch-6.18.35-68.127 · amzn 2023 1:1.0-0.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-obs-qa · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-rt · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-source · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-syms · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-syms · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.37.1 OPENSUSE-SU-2026:21555-1 Aug 12, 2026
kernel-zfcpdump · sles 16.0 6.12.0-160000.37.1 SUSE-SU-2026:23231-1 Aug 11, 2026
kernel6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo-common-aarch64 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-debuginfo-common-x86_64 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-devel · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-headers · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-modules-extra · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-modules-extra-common · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.12-tools-devel · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
kernel6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo-common-aarch64 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-debuginfo-common-x86_64 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-devel · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-headers · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-modules-extra · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-modules-extra-common · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
kernel6.18-tools-devel · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
linux · Debian 13.5 (trixie) 6.12.94-1 DEBIAN-CVE-2026-64157 Jul 20, 2026
linux · Debian 14 7.0.12-1 DEBIAN-CVE-2026-64157 Jul 20, 2026
microvm-kernel6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
perf6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
perf6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
perf6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
perf6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
python3-perf6.12 · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
python3-perf6.12-debuginfo · amzn 2023 1:6.12.92-122.166.amzn2023 ALAS2023-2026-1894 Jun 22, 2026
python3-perf6.18 · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026
python3-perf6.18-debuginfo · amzn 2023 1:6.18.35-68.127.amzn2023 ALAS2023-2026-1881 Jun 22, 2026

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