Bugzilla – Bug 1225111
VUL-0: CVE-2021-47336: kernel: smackfs: restrict bytes count in smk_set_cipso()
Last modified: 2024-06-14 11:29:43 UTC
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. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47336 https://www.cve.org/CVERecord?id=CVE-2021-47336 https://git.kernel.org/stable/c/135122f174c357b7a3e58f40fa5792156c5e93e6 https://git.kernel.org/stable/c/258fd821f69378453c071b9dd767b298810fc766 https://git.kernel.org/stable/c/3780348c1a0e14ffefcaf1fc521f815bcaac94b0 https://git.kernel.org/stable/c/49ec114a6e62d8d320037ce71c1aaf9650b3cafd https://git.kernel.org/stable/c/5c2dca9a7a7ff6a2df34158903515e2e4fd3d2b2 https://git.kernel.org/stable/c/5f9880403e6b71d56924748ba331daf836243fca https://git.kernel.org/stable/c/8f5c773a2871cf446e3f36b2834fb25bbb28512b https://git.kernel.org/stable/c/cbd87ba6a13891acf6180783f8234a8b7a3e3d4d https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47336.mbox https://bugzilla.redhat.com/show_bug.cgi?id=2282424
None of our branches are affected as we don't build smack at all in any of them (CONFIG_SECURITY_SMACK). Assigning back to sec.
fixed upstream