ipv6: sr: fix invalid unregister error path
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7epss 0.7%
exploitation probability
0.7%top 51% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
ipv6: sr: fix invalid unregister error path
The error path of seg6_init() is wrong in case CONFIG_IPV6_SEG6_LWTUNNEL
is not defined. In that case if seg6_hmac_init() fails, the
genl_unregister_family() isn't called.
This issue exist since commit 46738b1317e1 ("ipv6: sr: add option to control
lwtunnel support"), and commit 5559cea2d5aa ("ipv6: sr: fix possible
use-after-free and null-ptr-deref") replaced unregister_pernet_subsys()
with genl_unregister_family() in this error path.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-398330.htmlhttps://cert-portal.siemens.com/productcert/html/ssa-613116.htmlhttps://git.kernel.org/stable/c/00e6335329f23ac6cf3105931691674e28bc598chttps://git.kernel.org/stable/c/10610575a3ac2a702bf5c57aa931beaf847949c7https://git.kernel.org/stable/c/160e9d2752181fcf18c662e74022d77d3164cd45https://git.kernel.org/stable/c/1a63730fb315bb1bab97edd69ff58ad45e04bb01https://git.kernel.org/stable/c/3398a40dccb88d3a7eef378247a023a78472db66https://git.kernel.org/stable/c/646cd236c55e2cb5f146fc41bbe4034c4af5b2a4https://git.kernel.org/stable/c/85a70ff1e572160f1eeb096ed48d09a1c9d4d89ahttps://git.kernel.org/stable/c/c04d6a914e890ccea4a9d11233009a2ee7978bf4https://git.kernel.org/stable/c/e77a3ec7ada84543e75722a1283785a6544de925