CVE-2021-47336

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

smackfs: restrict bytes count in smk_set_cipso()

Oops, I failed to update subject line.

From 07571157c91b98ce1a4aa70967531e64b78e8346 Mon Sep 17 00:00:00 2001 Date: Mon, 12 Apr 2021 22:25:06 +0900 Subject: [PATCH] smackfs: restrict bytes count in smk_set_cipso()

Commit 7ef4c19d245f3dc2 ("smackfs: restrict bytes count in smackfs write functions") missed that count > SMK_CIPSOMAX check applies to only format == SMK_FIXED24_FMT case.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

VendorProductVersions
LinuxLinux>= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 5f9880403e6b71d56924748ba331daf836243fca; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < cbd87ba6a13891acf6180783f8234a8b7a3e3d4d; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 135122f174c357b7a3e58f40fa5792156c5e93e6; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 3780348c1a0e14ffefcaf1fc521f815bcaac94b0; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 8f5c773a2871cf446e3f36b2834fb25bbb28512b; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 258fd821f69378453c071b9dd767b298810fc766; >= f7112e6c9abf1c70f001dcf097c1d6e218a93f5c, < 49ec114a6e62d8d320037ce71c1aaf9650b3cafd
LinuxLinux3.5

References

Timeline

Published
May 21, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2021-47336: High severity, CVSS 7.8 | Vulnix