CVE-2026-93801
smb/client: zero-initialize stack-allocated cifs_open_info_data
CVE-2026-93801 is fixed in 74 products on 1 platform, first by DEBIAN-CVE-2026-93801, released September 24, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.0
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0013
2nd percentile
In the Linux kernel, the following vulnerability has been resolved: smb/client: zero-initialize stack-allocated cifs_open_info_data Stack-allocated cifs_open_info_data may contain random data. This can make some fields have wrong value if they are not set later.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-livepatch-6.12.111-136.204 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel-livepatch-6.18.54-121.166 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-207.111.5.1.el9uek | ELSA-2026-500374 | Oct 7, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.111-1 | DEBIAN-CVE-2026-93801 | Sep 24, 2026 |
| linux · Debian 14 | 7.2.6-1 | DEBIAN-CVE-2026-93801 | Sep 24, 2026 |
| linux-6.12 · Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | DEBIAN-CVE-2026-93801 | Sep 24, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.111-136.204.amzn2023 | ALAS2023-2026-3193 | Nov 7, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.54-121.166.amzn2023 | ALAS2023-2026-3192 | Nov 7, 2026 |
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